Good day, and welcome to the ClearSign Technologies first quarter 2021 conference call. All participants will be in a listen-only mode. Should you need assistance, please signal a conference specialist by pressing the star key followed by zero. After today's presentation, there will be an opportunity to ask questions. To ask a question, you may press star then one on your touch-tone phone. To withdraw your question, please press star then two. Please note this event is being recorded. I would now like to turn the conference over to Matthew Selinger of Firm IR Group. Please go ahead.
Good afternoon. Thank you, operator. Welcome everyone to the ClearSign Technologies Corporation first quarter 2021 results conference call. During this conference call, the company will make forward-looking statements. Any statement that is not a statement of historical fact is a forward-looking statement. This includes remarks about the company's projections, expectations, plans, beliefs, and prospects. These statements are based on judgments and analysis as of the date of this conference call and are subject to numerous important risks and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements.
The risks and uncertainties associated with the forward-looking statements made in this conference call include, but are not limited to, whether field-testing sales of ClearSign products will be successfully completed, whether ClearSign will be successful in expanding the market for its products, and other risks that are described in ClearSign's public periodic filings with the SEC, including the discussion in the risk factors section of the 2020 annual report on Form 10-K. Except as required by law, ClearSign assumes no responsibility to update these forward-looking statements to reflect future events or actual outcomes and does not intend to do so. On the call with me today are Jim Deller, ClearSign's President and Chief Executive Officer, and Brian Fike, ClearSign's Chief Financial Officer. At this point, I would like to turn the call over to Brian Fike. Brian, please go ahead.
Thank you, Matthew, and thank you to everyone for joining us here today. Our financial results on the Form 10-Q were filed with the SEC back on May 17th of 2021. The company recognized revenue of $363,000 during the three months ending March 31st, 2021, from the completion and delivery of three burners under a product contract with an infrastructure company. Jim will be providing further details on this. The cash burn for the quarter ended March 31st, 2021, was approximately $1.5 million, compared to approximately $1.4 million in the same period of 2020. Our cash and investment resources were approximately $10.7 million at the end of the first quarter of 2021, compared to approximately $8.8 million at the end of the fourth quarter in 2020.
As of March 31st, 2021, the company sold 940,748 shares of our common stock under our ATM program at an average price of $4.93 per share. Gross proceeds totaled approximately $4.6 million, and net cash proceeds approximated $4.5 million. Of these amounts, there are 190,748 additional shares representing net proceeds of approximately $1.1 million that were sold as of March 31st, 2021, but settled during April of 2021. Shares outstanding on March 31st, 2021, were 31,137,498. It is important to note that with our quarter-ending balances, we have sufficient working capital available to carry us well into 2022, and that is without revenue from any other sources. With that, I would like to turn the call over to our Chief Executive Officer, Jim Deller. Please go ahead, Jim.
Hello, everyone, and welcome. Thank you for joining us for the ClearSign 2021 Q1 update conference call. We have had a lot going on these past few months, particularly in the last few weeks. As an aside, it is encouraging to see the consequences of the restrictions imposed to control the coronavirus start to be relaxed in the United States and signs of our industry and market here starting to return to more normal operation. I will start the call today discussing our process burner product line. There have been some key developments and achievements in this area. I will then move on to discuss boiler burners with some very significant progress there also. After my prepared remarks, we will open up the call for questions. We have news on multiple projects in the process burner product line.
In our last call, we announced the recent startup of two multi-burner heater projects in California. I'm pleased to update that both continue to operate well, just as reported in our last call. I do appreciate that of all our projects, the multi-burner project for ExxonMobil is our most prominent. I will start with that. At this time, we believe that our burners meet the operating requirements of ExxonMobil, importantly including operation without any hydrogen in the fuel gas over the turndown range and not below the guarantee.
This ExxonMobil fuel gas range requirement and our accomplishment presents an extreme range of fuel gas composition for a process burner. We believe developing and proving our technology to handle this spectrum will enable it to perform with the fuel gas mixtures in almost all foreseeable refining and petrochemical processes, including consideration of upsets caused by extreme weather outages and other operational emergencies. We are currently scheduling an informal preview of the performance demonstration and closing out a punch list of non-core burner technology related items required as part of our deliverables. These mainly relate to some ancillary instrumentation that is to be included with the burner supply. When this is completed, we believe we will be to the point of arranging a formal performance demonstration, all of which will take place at the site of our process burner partner, Zeeco, Inc., in Broken Arrow, Oklahoma, which borders Tulsa.
Ultimately, while as soon as possible, the timing of this formal performance demonstration will be down to the scheduling and logistics of our two teams. I do want to point out again, as we have previously said, this has not been a run-of-the-mill order. The test and operating range required by these burners was selected to cover the standards and extremes of ExxonMobil's entire Gulf Coast operations. To get to this point, it is the culmination of multiple years of R&D. ExxonMobil remains fully engaged in this project, and it is included in the plans for the next shutdown of the relevant sections of their Baytown refinery, which was originally slated to be late this year. The latest status of that turnaround is that there has been a small delay, nothing to do with ClearSign, which has pushed the turnaround into the early part of next year.
We will, of course, provide an update as we get clarification and confirmation of the timing. This upcoming test is also pivotal to our relationship with Zeeco, Inc. Our agreement with them is contingent on the completion of this test and our engagement to this point has accordingly been restricted to collaboration between our engineering teams and the use of the extensive Zeeco test facility. In addition, Zeeco has been manufacturing our burner orders since our engagement. On completion of the ExxonMobil demonstration, we will be in a position to formalize our agreement, a pivotal event for ClearSign, and one that we believe both Zeeco in addition to ClearSign are very much looking forward to. From that point forwards, we expect to engage with the full Zeeco sales and marketing teams, and Zeeco and ClearSign will be able to promote the new Zeeco-ClearSign Core burner product line.
That being said, we are open for business and have been in the market selling as our announcements have indicated. To fulfill these orders, we have been very busy working with the Zeeco team, and in addition to getting the ExxonMobil burners to this point, we also successfully set up and completed the formal demonstration of the burner for our European super major project. This formal witness performance test was completed on June 11th, and while there is the normal review of the data to be conducted by our client before the process is entirely complete, all indications from the demonstration indicated that our client was very pleased and impressed with the burner performance. As said, following standard procedure, the data is currently being reviewed by our client. We believe everything went very well and we look forward to installing this burner and completing this project later this year.
We believe this will establish ClearSign Core process burners as a proven and viable technology for another global super major refiner with significant need for what we provide in the NOx challenge regions of the U.S. This project had great significance for ClearSign, as not only will it be our first installation for a refining super major, scheduled for installation later this year and our first installation in Europe, but it demonstrates the extreme flexibility of our technology. It is interesting to note that the main motivation for this project is the need to control carbon monoxide emissions and flame volume in a very cool furnace, a distinct advantage of our deployment of premixed flame structure and ClearSign's flame stabilization technology. Up to this point, most orders and interest has come from our best-in-class ultra-low NOx emissions and/or the issue of flame impingement.
For this operator, the issues are controlling their carbon monoxide emissions and keeping flame lengths short while minimizing NOx emissions in a furnace with a very low internal temperature, a combination that we believe our technology is uniquely suited for. For ClearSign, this project provided the opportunity to deploy and demonstrate our novel technology to a second global refiner. While this project's installation is in Europe, as said, the customer has significant refining capacity in our target regions of the United States. My last update for this product line today relates to our multi- burner California infrastructure project. At this time, we are still waiting on the formal third-party report of the operating data from the site.
The information that we do have indicates that the burner emissions were below our guarantees, and this is consistent with our own measurements taken while on-site at the same time the testing was done. This NOx emissions level was achieved even including the effects of the waste gas that is pushed through these burners as a byproduct of the operating process. We will issue a press release when the formal report is provided confirming the actual numbers. As we have stated before, but worth repeating, these burners were a retrofit of an existing heater as the essential element of a NOx reduction project managed by engineering company R.A. Nichols and installed on a turnkey basis by our channel partner, California Boiler. ClearSign Core burners were selected as an alternate to the SCR technology that was originally slated for this NOx reduction project.
Assuming it is received, this formal emissions confirmation will validate the substantial capital and ongoing cost savings, the reduced energy consumption, and avoidance of toxic ammonia transportation, storage, and processing on site that ClearSign Core burner technology can deliver to our customers and their local environment. Incidentally, this project is much more representative of a typical burner order regarding complexity and schedule. This order is now complete, fully invoiced, and importantly, paid in full, representing the revenue booked in Q1. I will now move on to boiler burners. One of our notable announcements since our last call was for the receipt of the official certification that our 125 horsepower fire tube boiler burner is certified for sale in China. This gives us the ability to produce, market, and sell our 125 horsepower fire tube boiler burners throughout China.
This was on the heels of our announcement the previous quarter of a collaboration with California Boiler to sell, install, and service our fire tube boiler burners in North America, enabling us to jointly take advantage of tightening regulations regarding NOx emissions from fire tube boiler burners, especially in California. I mention these two together as they form part of our holistic fire tube boiler burner business development strategy. Ultimately, we plan to offer a range of fire tube boiler burners. California Boiler has a fleet of rental boilers of varying sizes that allow us for many of the different burner sizes to be proven.
The beauty of this arrangement is that after installing the ClearSign Core burners, these rental boilers can then be deployed into the field, publicly demonstrating new burners and giving operational experience to customers, and most importantly, providing expected NOx emissions that are compliant with the new and upcoming California regulations. In addition, we can highlight our technology as an alternate to SCRs and the complications and risks of handling ammonia that they entail. In parallel, we will demonstrate and certify these different burner sizes in China to expand our product line there. Since this whole product line is new, we will be able to build and run the next sizes of burners in the California market, then transfer the designs to China to replicate the fabrication and approval process we took with 125 horsepower burner.
Our newly USA-fabricated 125 HP burner, one of the smallest of the range, is scheduled to ship to California Boiler later this week, which will be the first of the series. A significantly larger 500 HP burner is being fabricated to be shipped to California Boiler for installation following the setup and final checkout of 125 HP burner. A 350 HP burner will follow shortly thereafter. As part of our asset-light strategy, we are working with others to actually fabricate the burners, which is in our scope for our agreement with California Boiler. We have made arrangements for these first few burners to be fabricated by a nationally known fire tube boiler burner company on an exploratory basis. This provides access to some of the most efficient manufacturing resources available to us, as what we need is well matched by their existing capabilities.
It is worth noting that our relationship with California Boiler has opened up several new market verticals to us, including dairy, both milk and cheese, agriculture, and food processing. As one can imagine, these industries are especially loath to install SCR systems as potential for health and safety incidents or operational complications resulting from the storage and handling of ammonia present significant risks. We are also pursuing sales in China, although admittedly, at this early time, we are being cautious to find customers who will enable us to get some runtime in China and our track record established while we have only a single burner size available. We are also being careful to find customers who we expect to be long-term clients and have an interest in protecting our IP and so worthwhile first adopter customers.
Shuangliang Boiler Company, who we discussed in our last call, is China's largest fire tube boiler manufacturer, and with whom we have an MOU to develop an integrated boiler burner package. They have provided the resources for our type testing in China, and therefore, as you would expect, they support this approach and are working with us to identify suitable customers to receive either the first integrated boiler burner package or to possibly retrofit an existing Shuangliang Boiler in a Chinese critical NOx region. The process burner and boiler product lines have always been and continue to be our main business. As reported, we also have a range of flares and are seeing the potential for increased opportunities in these products as the new California emissions regulations are completed.
This includes potential opportunities for landfill flares. We have some final product verification scheduled to ensure our flare technology is developed to handle these different waste gas streams. Our goal with the flare product is similar to the fire tube boiler burner line, to develop a standard range of high-performing hardware and to then partner with a company expert in sales, site installation, and service who can customize, provide, or modify the client's control systems to accommodate their specific needs. Fortunately for our flare product line, we already have such a partner in California Boiler. The expansion of our capabilities into the landfill market allows us both to leverage our relationship and grow our respective businesses. Just as a reminder, California Boiler installed and provided the controls and service for our four wellhead flares in Southern California, which continue to run effectively for our mutual client.
We also continue to promote our pilot sensor, the ClearSign Eye. As our customer base transitions back to normal working arrangements, we are getting more traction, which is good news. Most recently, as we have our suitcase mobile demonstration unit, we were able to bring it to Tulsa and to include a demonstration of our super major refining customer who was visiting the Zeeco's test facility for the process burner demonstration. This demonstration went well and was positively received. The ClearSign Eye is functioning reliably both as a demonstration model, which is frequently assembled and dismantled, and in continuous operation as observed on a model we have running round the clock in our facility in Seattle.
While we have work ongoing for the next upgrade, in this case, to produce a slimline version to enable a wider application, basically so it can fit seamlessly into burners with smaller pilot cutouts, the model we have today is ready for commercial deployment. We also have the longer-term growth opportunity of providing a sensor for major clients in the transportation sector. To progress this effectively and efficiently and to enable expansion into the many adjacent possible applications, we have formed an agreement with a private company based in Seattle that is an expert in this particular field. The needs of the transportation industry, both technically and for product certifications and testing criteria, are not core competencies of ClearSign, and to develop these technologies and bring them to market ourselves would require a lot of capital, time, learning, and networking on our part.
Whereas the opportunity to join with a company who can develop this technology and who all the necessary background greatly increase the probability of success and greatly reduce the consumption of our valuable cash reserves. If successful, our specialized sensor will be part of a system, and that system will be the product sold to the transportation OEM. Our partner has the expertise to bring the entire system together and to navigate the approval and certification process required. This arrangement also enables our partner to deploy the technology in other industries, which will be beneficial for both parties. Assuming this venture is successful, we plan to form licensing contracts with our partner for the use of the ClearSign Eye sensor in these new products.
I do want to caution you that while the markets for these products are global and extremely exciting, the anticipated period to bring a new technology to market and commercial deployment in these sectors is multiple years. While we are very excited about this opportunity and what it can mean for ClearSign long term, it is a long-term venture and the anticipated income is multiple years into the future. I do have a few more general business-related comments. In terms of sales inquiries and prospects, especially for process burners, while this is certainly anecdotal, we are seeing an increased engagement from the main players in the industry and for mainstream projects. We believe that this is at least in part the result of our progress both in the testing at Zeeco for ExxonMobil and also the installations we now have performing in the field.
As we continue to build our installation list and the performance of those installations is confirmed and our technology is validated, we expect this trend to accelerate. Essentially, we believe we are approaching the point that we are no longer considered experimental and commercial engagement with ClearSign is viewed as being of less risk. In short, the industry at large, we believe, is starting to consider us more mainstream, and our conversations reflect that. For anyone who missed our press release issued June 7th, ClearSign has been added to the Russell Microcap Index. We anticipate that this will bring more visibility to the company, and we expect that it will broaden our ownership, and we take it as an encouraging sign of our company maturing and becoming mainstream.
As a quick review before proceeding to our Q&A, we believe we are on the cusp of finally completing the process of expanding our process burner capability to perform all the broad operational functions required by ExxonMobil for their product validation project. The formal concluding event will be a witness demonstration by our client at the Zeeco premises where we have the burners set up in a multi-burner configuration spaced exactly as they will be in the destination heater. The next stage for this program will then be for the burners to be installed into their destination heater in the Baytown, Texas refinery currently scheduled now or early next year.
The successful completion of this test will allow our partnership with Zeeco to be put into full operation as we integrate our technology into the vast and experienced Zeeco team and align our resources to promote, sell, and deliver a new, unique, and unmatched Zeeco-ClearSign Core process burner product line. We are very excited about the prospects of this success as we believe are Zeeco. Our fire tube boiler burner product line is being expanded rapidly, greatly enhanced by our partnership with California Boiler. This effort can be leveraged to expand our fire tube boiler burner product line in China. We look forward to the deployment of the California Boiler fleet of rental boilers, giving customers in one of our most valuable markets hands-on experience operating ClearSign Core burners and incredible emissions performance that we believe they can deliver.
Finally, with our ClearSign Eye sensor product, we are seeing restrictions loosen up, allowing us to facilitate some demonstrations with key operators. In all our product lines, we are able to stay true to our asset-light business model and develop alliances and partnerships to enhance our core intellectual property, technical and business management assets with the world-class order processing infrastructure and capabilities of our partners, and intend to continue to do so. We have many milestones to look forward to in the foreseeable future and will issue press releases and keep everyone informed. I also encourage anyone interested in ClearSign to follow us on LinkedIn as we post more informal updates and minor news items there. Also, please check our website as we do post new material and updates as we progress. In addition to that, the website is a great resource for more formal company information.
The developments and milestones that I have discussed represent significant developments not only in our technology but combustion technology in general. We are running lean at ClearSign and genuinely believe that we will be more successful focusing on talent and attitude and building a bigger team. The progress we have made is a result of great focus and hard work of our employees. Progress is never smooth and rarely easy, and I want to acknowledge the grit and dedication of our team that has enabled the progress that we have made, and that gives us confidence in our success. Thank you everyone for your interest and taking the time to participate today. We look forward to updating you regarding our developments and speaking with you on our next call. I will now hand the call over to our operator for Q&A.
We will now begin the question and answer session. To ask a question, you may press star then one on your touch-tone phone. If you are using a speakerphone, please pick up your handset before pressing the keys. To withdraw your question, please press star then two. Our first question today comes from Amit Dayal with H.C. Wainwright.
Thank you. Good afternoon, guys. Congratulations on all the progress. It looks like you guys are having a lot of conversations with different partners and a lot of the companies that have already been highlighted previously. Just want to get a sense of what the actual pipeline right now is looking like and how much is in actual backlog that potentially could be deployed by the end of the year post the three units that were installed in California.
Hi, Amit. Good afternoon. It's good to hear from you, and thank you for joining us. You're correct. As we highlighted, we are actively engaged in a lot more high quality of opportunities. We are seeing inquiries from the major users and also the engineering companies that support them, which we have not seen in the past, and that is very encouraging. I really take that as being an indication of the company being considered as more mainstream. That's on the process burner side. On the boiler burners, particularly the fire tube boiler burners, since we made the announcement, as an example, making the announcement with California Boiler and our intention to develop a product line reflecting the sub 2.5 ppm NOx that we've achieved with our 125 horsepower burner. We've seen a lot of inquiries from the other verticals I've referenced in the call.
There's a great interest there also. We are working with California Boiler to push through the additional burner sizes in that range to get them to market. Just to reflect on the opportunity we have there. California Boiler having a series of rental boilers that we can use to prove those burner sizes, and that those rental boilers can then be deployed to rental customers. It gives us the immediate ability to actually get these burners out into the field and to let our prospective customers get their hands on the technology, get used to seeing it, and to basically see what our burners can do with their own eyes. We do see things picking up. We see a great development in the opportunities that we're getting exposed to through these partnerships.
Right. Understood. Thank you. With Exxon, I guess we should just continue to expect the things that's still in play. Just want to confirm your commentary on the call. Has everything that was supposed to probably happen in the first half of 2021 now been shifted to first half of 2022 in terms of when you could actually get some of these demonstrations out of the way?
Amit, first of all, let me address the Exxon, because we've actually made great progress with Exxon. This was more of that project. We talked about the other two major projects. I just referenced that as a comparison. This was a more typical scope with a standard specification. That order was received late January. We demonstrated it, so we completed the testing for that burner last week, and it will ship very early in Q3 with an installation also later on this year in Europe. The Exxon project has a very wide operational scope. We believe, and through conversations with Exxon, we believe that we have met all of the operating requirements. The punch list I referenced is nothing to do with the core burner technology. It really is instrumentation.
You appreciate the burners that we have in test are the burners that will be shipped down to the Baytown site. There's some tidying up and polishing to do to get those ready to go. We are in active conversations with the Exxon engineers. Just to give you an idea of where we are, the process to complete this project, we're in active conversations with the Exxon engineer about having him come up to Tulsa to do a personal witness of the burner and to check out the performance and make sure that he is comfortable with it, at which point he will then engage the rest of the stakeholders within Exxon that will be part of the formal witness test. It then is down to making travel plans and have them coming up to Tulsa to complete the process.
The change in schedule is just a couple of weeks. Unfortunately, the installation date I referenced, it's moved into the year 2022. While that's a milestone, in terms of actual time, it's not that significant, especially not considering the magnitude of this project.
Okay. No, understood. With China, I know you guys made a lot of progress in the early part of this year already with your efforts to commercialize over there. Are we just in sort of a little bit of a development period, I guess, until we see maybe orders materialize for you over there? What is happening on the ground actually over there? Is there anything that would come up in terms of deployment opportunities for that market?
Amit, what we want to highlight is we have a firetube boiler burner plan, and China is by far the big market for that. In terms of being successful in China, first of all, means developing that big product line. Especially with the restrictions of COVID, we had to come up with another way of doing that and have really focused our efforts on working with California Boiler and developing a product line of burners. These are exactly the same burners that we will then be deploying in China. We've proven that we can get the product certified there. We've proven we can manufacture in China. We have developed a very strong relationship with truly a massive company in China , Shuangliang Boiler Company. We are carefully seeking first adopter customers.
I would emphasize carefully because while we're at this early stage of launching an entire product line, we don't want to misstep by rushing just to claim a first sale. We do look forward to that first sale, don't get me wrong, but it is much more important for us to focus on the big picture, and the goal there is to launch a comprehensive product line into the mainstream industry of China.
Okay. That's all I have, Jim. I take my other questions offline. Thank you.
Great. Thank you, Amit .
Our next question comes from David Brown, a private investor.
Hi, Jim, and congratulations for all of the milestones that are being met and continuing new business opportunities. My question was mainly a follow-up on the firetube boiler with China, the different sizes. I'm imagining what I'm hearing is that you are developing with California Boiler some much larger firetube boilers, a 500-hp and a 350-hp . Your current product line is a 125-hp firetube boiler that is ready for market in both the U.S. and in China. I just wanted to get some clarification on the process with China. I think if I'm remembering correctly from the last call. You will have to get Chinese government approval for different sizes. If you perfect a 500 -hp and a 350-hp , I would assume that you're going to be going through a process.
Could you give us some more color on that process and how it would play out?
Certainly. The observations are good and correct. We believe the hard one was the first in China. Getting that 125 HP burner also meant we had to work out a process. We had to form the agreement with Shuangliang Boiler, and basically work out everything that was required by the Chinese authorities to complete that certification process. As we develop the burner sizes in California, we will manufacture sister burners in China and then basically repeat that process. What that entails is building a burner which is complete with a control system, installing that in a boiler. Although, and I'll stress, not confirmed at this point, but we fully expect that to be with Shuangliang. We will then go through exactly the same steps of building our burner, installing it, ensuring it runs correctly, and then we basically book the government agencies.
They come and they'll spend a, I think last time it was a couple of days. We expect that process to get shorter as they get more familiar with us, and they check out the instrumentation, they check out the burner, they make sure it runs and meets their requirements. The inspectors then basically submit their data back to the senior people within the Chinese authority who then review it and issue the certificate. Having done this critically, having done this the first time and worked out the process and all of the contacts, we are now just following on exactly those same footsteps with the repeat sizes as we sequence through the different boiler sites in California.
Okay. Very good. Thank you for that. Just one follow-up on the dairy. You mentioned dairy industry. I'm imagining that would be something to do with the heating homogenization of milk or something of that nature. You mentioned that obviously they're not real comfortable with the SCR, with the ammonia, as complications with food products. Could you give a little more color on exactly what the opportunity is in the dairy industry, and what the heater would be?
David, I think the fact that I cannot give you all the details you're asking is actually a strength. We are building our asset-light company. Part of that is we're working with very strong channel partners. That is truly a question I would love to put to California Boiler, who are expert in their area and work with these guys day in, day out. Because you appreciate the industry, just like we probably do with our HVAC systems at home, you'll have a service company that you use reliably. The industry do the same thing, and California Boiler provides that service to them, and they know these plants intimately and their needs and provide routine service. That's one of the reasons that we really select them and work with them as a channel partner.
I don't want to claim knowledge of something I'm really not a reliable source of information for. I would honestly also take that as a strength because that's the strategic model of this business, is to find and work with the channel partners and sales agents who do.
Okay, great. That helps because that means that it's an opportunity that's come up through your partner, basically. Your partner recognized, "Hey, this is a good fit here." That's appreciated. I think that you have many partners now in the asset-light model, and they're paying off now for you it sounds like. That's exciting.
Great. Thank you, David.
Again, if you have a question, please press star then one. Our next question will come from Robert Kecseg with Las Colinas Capital Management.
Thank you. Hi, Jim.
Hi, Bob. Good afternoon.
Yeah, good afternoon. I wanted to ask you about the fire tube, since you were able to achieve even a lower NOx in the fire tube application. I wanted to know if there was any difference in the industry in a couple of areas, both the operating oxygen and the turndown ratio, because I know the industry is used to certain levels on those two things. I'd just like you to comment about how this compares to what the industry is used to.
Certainly. There is a wide range of different burner products in the industry. Our turndown range meets the requirements of standard burners. I want to take a step back. Our goal has been to develop products that provide and deliver a superior performance that are easy to operate and as normal as possible for the installing companies. Our boiler burners meet the normal turndown range. The low NOx that we're achieving is at least equivalent, but I'd say a lower oxygen level than the typical lowest NOx alternatives on the market. I'm particularly comparing to the metal mesh stabilized burner, one of the variants out there.
Bear in mind, a lot of the other burners that get down to very low NOx have other complications such as recirculating flue gas and the extra blowers and the extra energy utilized into pulling the flue gas from the stack and blowing it back in through the burner as well. In terms of the utility that we would require, I think we're certainly in line. I would actually claim to be slightly better than I'm not saying we have any peers, but than the other burners that claim they have the lowest NOx on the market.
Okay. Can you talk about the level of oxygen for operation usage in it, the oxygen concentration?
I can. Just for clarification for everyone, I'm talking about numbers here. We have a 125-horsepower commercial boiler in our facility in Seattle, where we run most of the testing and development of our burner. I've got numbers from testing here. They actually exceed the numbers that we've posted. I've got to be careful here. In general terms, the data coming to mind, we run in oxygen numbers. We've got NOx down below 2 ppm. I think we've mentioned that in the past. The oxygen levels up to achieve that have been in the 7% to 8% O2 region. If we allow ourselves to get up to the north of 2 ppm NOx, obviously the oxygen levels can be reduced.
As we continue to develop the product, we're actually working out how low we can pull the oxygen and still meet that critical NOx level.
Okay. The other area is you mentioned the shipment. I'm talking about the process burners now.
Yeah.
You said installed this year, that the European client should be completed shipping in the third quarter. If we look at that transaction, because everyone's concerned about the length of time before we get cash flow and don't have to continue to get new financing to push the company forward. That's really the level of risk that people are looking at, I think, on the call. That one, as you said, was an order, I guess, in January, and you expect to get it shipped in the third quarter. I guess that would probably be for the process heater type thing is probably more conventional if you are already in business, like say, Zeeco or another seller of the same product. Is that kind of a normal type of thing of order to shipment of six-nine months, typically?
It is. We've actually got two good data points for what I would suggest is a more normal operation. I think the Exxon project, because of the magnitude of the development has somewhat skewed the perception. We have both the infrastructure projects. Just to remind everyone, the infrastructure project was three burners. We received the order mid-October 2020. We did test that burner, and that burner shipped in February of this year. That burner has started up, and in the quarter, basically said that we are imminently expecting the formal release of the test data from that burner. The second super major is actually now our first super major because this is going to be the first installation into a super major refinery. That order was received right at the end of January this year. I think we actually announced it very early February. It's scheduled to ship.
The testing was complete. It completed last week, and it is scheduled to ship at the start of the third quarter this year and to be installed later on this year. The installation dates can move a little bit. They're not in our control, so I can't give an exact date for the actual installation, but it's comfortably inside this year. For our project, we generally measure that from go date to ship date is the window that really drives our business and our finances.
Jumping back to the burner boilers and the California Boiler relationship. I tried to look up something about them being a private company, and it seems like their services that they provide their customers is beyond what most of us think as a manufacturer's rep. I'm saying a manufacturer's rep is more of a sales force. Would you like to elaborate a little bit on the capabilities of California Boiler and the relationship they have with these customers?
It's important. We do choose our partners carefully, and the objective is to leverage what we have that's special. We have a very special burner technology, and we are staying asset-light. Our role is to provide the technology and to provide that in a form that is repeatable and scalable. What California Boiler brings to the table is the rest of the picture. They have the relationships with the customers. They have the expertise and experience to provide the customization and engineering to modify the control system. On the boiler burner, it's the control systems are typically the customized part of the project. That is exactly what California Boiler do. They will specify if it needs to be new. They will modify what's there if it needs to be reworked.
They will take the standard core product that we will provide, and then they will handle the installation, they will handle the controls, they will handle the startup, and they will handle the service. In addition, because of their network and location and ongoing business in California, they also have the customer relationships. They will actually bring in the inquiries and the orders, which lead to that business. Really beyond that, looking at it from a product line rollout, they have the rental fleet, and they have the market knowledge to help us get this product line from a great technology to a commercial business through deployment of their rental boilers, working out the size of boilers, and then deploying those rental boilers and getting the marketing and the experience out to our customers in the field.
Okay, great. O ne other thing just to clear up, you mentioned the other two sizes on the firetube, the 500- hp and 350- hp. Have those already been designed and built, or are you still in the process of doing that before you can send them to California Boiler?
First of all, there are more sizes. Those are just the two that we are knocking out quickly. If you look at a boiler burner product line, we will continue to fill in the rest of the sizes as well. The 500-hp is designed and in manufacturing. The 350-hp is designed. The actual manufacturing is not initiated yet. We sequence that because you can only work on one boiler at a time. We've basically lined these up to flow back-to-back to get them knocked out as quickly as possible, but also efficiently considering the resources that we and California Boiler have. Very few people would have a fleet of different sized boilers just ready to run concurrently or the manpower to optimize them at the same time. We're doing these back-to-back in series.
Okay. Then last, I just want to say thank you for the effort to keep the cash burn at that $1.5 million. Again, I think that's really great, and all the people in the company deserve credit for that because that's really important to the shareholders, I think. Thanks very much, Jim.
Thank you, Bob. I appreciate the questions.
Our next question comes from Robert Harvey, a private investor.
Thank you, Jim. You're only allowed to take questions from people named Robert, it appears. I have three questions. One, I believe you said the last time on the call that one of the reasons that Exxon was taking longer was because they were asking for more potential configurations. I'm just wondering has the market opportunity taken longer to meet or to test these different configurations, and I just wonder if you can say a little bit more about whether or not that's expanded the market opportunity with them. In other words, we've been delayed, but is the market opportunity larger than what was originally expected? Question one.
Certainly. The breadth of the operating requirements that Exxon have requested is, I believe, the most extreme that I have experienced working in this industry from 1996. The fuel gas range is what I mean, through multiple processes and multiple different upset conditions and going back looking through all the data, the breadth of all of the different operating units on the plant, they've taken the highs and the lows and asked us to accommodate everything. They've done that for a reason. That was the reason that we have really persisted to meet all of these requirements, and is the same reason that they gave us all these requirements, is Exxon is doing this as a validation project, and we did not want to limit the applications that they are considering in any way.
While it has taken some time and certainly considerable effort, it is a very worthwhile endeavor. I think we need to also look at the bigger picture that while this project is for Exxon, it is being watched, as we believe, by all of the other super majors in the industry. This really is truly a very large validation project. Getting these burners through these tests, demonstrating all of these requirements is going to be a very big achievement and a huge milestone for us.
Great. Thank you. Along the lines of the other majors who are interested, and maybe this is just I'm inferring incorrectly here, but you've mentioned that you've had an increase in engineering inquiries. As a layperson looking at the Shell court decision in the Dutch court and so on, it seems the politics are coming in your direction. Are you sure that everyone who needs to know about ClearSign knows about them, knows about you? Rather than waiting for engineering inquiries, are you doing within scope and finance restrictions, do you feel you're doing everything you can as this environment, I think, is coming in your direction politically to make sure that all the potential buyers of your product are getting in line, frankly?
That's hard to quantify. I think there's a few people. We do not rely on inquiries coming in, the inquiries that come in are, ultimately, if you look back, come from outreach and promotion. One of the big activities that we're going through right now is making sure the word gets out. We need the world to know that we are open for business, especially within the engineering and operating community around the refiners and boiler companies. From a personal standpoint, I will never believe that we are doing all of the outreach that we should be. You can never rest on your laurels. You've always got to be thinking, what else can we do?
Whilst I think we have done a good job of promotion and that ClearSign is truly becoming an established brand, I'm never going to say that we don't need to do any more. We absolutely do. Through whatever channels, we're always looking for new channels, whether it's conferences, whether it's publications. One of the big events that I'm really looking forward to is being able to talk more about the installations that we have, because having an established case study and references from the industry and being able to use the names and the statements from those operating companies is very powerful. Getting through the Exxon test and getting those burners into the field is going to move us forwards in terms of publicity greatly. We talked about the infrastructure projects and the two global super major, or now the one global super major that we've just tested for.
Getting to the point that we can discuss the details of those projects and actually talk about who that really is and get their testimony. All of these are things that we take very seriously. There's a lot to do. Marketing is extremely important, and I'm not sure you can ever say you've done it all. It's always a goal.
Great. Thank you. My final question is, I noticed that you're looking, I guess, for a CFO, and I believe the headquarters, you're moving to Oklahoma. That's at least temporarily disruptive. How's that going and when will that be completed?
Our business is and has steadily been transitioning to Tulsa. It has been now for some time. We are doing this in a way not to be disruptive. We have two active offices. Our major partner, Zeeco is in Tulsa. It's where the industry is based. It's where the customers come for combustion equipment. It's where the suppliers are. It's where the workforce with experience in this industry are based. To be successful, I won't say location's everything in this industry, but it's certainly very important. We have migrated there more than shut down one office and moved. We are continuing activities in Seattle, and we certainly need to support the West Coast. We are being very careful for it not to be disruptive, and we are not doing it abruptly.
Got it. Thank you.
Thank you, Robert.
Our next question comes from Jeff Feinglass, a private investor.
Hi, Jim. Yeah, thanks for taking this question. Can you expand a little bit? You mentioned this earlier. How will your relationship with Zeeco change once the Exxon personal witness testing is completed?
Yeah, Jeff, thank you. This is a really big milestone for ClearSign, and it's what we've worked for in our asset-light strategy. Zeeco, just for context, Zeeco is the second biggest process burner manufacturer in the world. The process burner industry requires customized projects. The clients are very conservative and rely on name and reputation. We need a sales team as well. We have salespeople, but we need a much broader platform. Zeeco has all of those resources, and the agreement we have with them is that we will basically integrate with Zeeco. To explain the depth of this, what will come out of this is that there will be a new Zeeco-ClearSign Core burner product line. We've always strived to be the Intel inside. We will work with Zeeco. We will benefit from their infrastructure.
They will benefit from having a truly best-in-class, unique burner product line. Together, we will market that product line and meet the needs of the customers. What we've been doing up till now is basically proving our product to the industry to get ClearSign established, to get the brand recognized. The really big step is one, leveraging the resources and combining with Zeeco. We then are working through the assets of truly a global company. Secondly, that global company will then be carrying ClearSign Core as very much the unique ultra-low NOx process burner in the industry.
Got it. Yeah. Well, thank you for that.
Thank you, Jeff.
This concludes our question and answer session. I'd like to turn the call back over to Jim Deller for any closing remarks.
Thank you, everyone. That does conclude our call for this quarter. I do appreciate your time, and I really appreciate your questions and your interest in following ClearSign, and I look forward to talking to you all in the near future.