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Boiler Manufacturers Commercial

Last updated: January 2026

This directory lists 61 boiler manufacturers commercial across the United States, from packaged heating boilers to custom high-pressure steam systems.

Buyers in this category are typically solving critical operational problems, such as replacing aging, inefficient equipment, increasing heating or process steam capacity, or reducing their carbon footprint. They seek solutions that offer high combustion efficiency, precise temperature control, and often need units with a specific Boiler Horsepower (BHP) output, including advanced condensing boilers for maximum energy recovery.

The types of suppliers in this space vary significantly, encompassing large original equipment manufacturers (OEMs) who produce a wide range of standardized and custom units, to specialized fabricators focusing on unique applications or modular skid-mounted systems. Some suppliers also act as integrators, combining boilers with burners, controls, and ancillary equipment into a complete solution.

To ensure a successful sourcing project, buyers should come prepared with detailed heat load calculations, preferred fuel types, available space constraints, required steam pressures or hot water temperatures, and any specific emissions targets. Manufacturers will expect comprehensive site and application data to recommend the most appropriate and cost-effective solution.

A significant trend in this category is the accelerating shift towards higher efficiency units, particularly advanced condensing boilers, and integrated smart control systems. There's also growing interest in electrification where feasible, as well as modular and containerized boiler rooms for quicker deployment and scalability.

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Company Directory

61 companies nationwide

Corona, CA

Based in Corona, CA, Ace Heaters, LLC manufactures commercial water heaters and unfired clean steam generators. They produce compact water heater packages for commercial and institutional buildings, alongside high-efficiency Ajax E Series models. Their systems cater to medical sterilization, humidification, and various research applications, emphasizing thermal efficiency.

Messersmith Manufacturing, Inc. designs, fabricates, and installs biomass boiler systems for various industrial sectors. The company provides wood-fired furnaces, automated outdoor wood boilers, and related material handling and emissions equipment. With over thirty-five years of experience, they also offer custom fabrication services.

Burnham Commercial manufactures high-quality boilers and control systems for commercial and industrial applications. The company specializes in steel, cast iron, and specialty boilers, providing robust heating solutions and accessories. Based in Harrisburg, PA, it serves a diverse range of business customers with its extensive product offerings.

Germantown, WI

Based in Germantown, WI, Cain Industries manufactures exhaust heat recovery and steam generator systems. They provide boiler economizers, waste heat boilers, and heat recovery steam generators for engine cogeneration, boiler economizer, and industrial heat transfer applications.

Gurnee, IL

Based in Gurnee, IL, Chicago Boiler Company, established in 1891, specializes in custom steel tank fabrication and industrial processing systems. They offer UL Listed custom enclosures, waterjet cutting, CNC machining, and rolling services. The company serves the energy, paint & coating, chemical, and adhesive industries.

Dallas, TX

Based in Dallas, TX, Cleaver-Brooks Products offers a comprehensive source for new commercial boiler equipment, burners, controls, exhaust solutions, and water systems. They provide integrated heat recovery solutions along with essential parts and ongoing service for their products.

Based in Cheswick, PA, CEMLINE CORP. manufactures electric boilers designed for hydronic heating systems and process heating. Furnished as complete factory packages, their boilers provide robust heating solutions for commercial and industrial applications. The company has been in business since 1935.

Industry, CA

Clayton Industries manufactures industrial steam boilers, focusing on advanced steam technology. The company emphasizes efficiency in steam systems, providing solutions for a range of industrial and commercial operations. Their work supports critical applications where steam is vital.

Clayton manufactures innovative steam system solutions for commercial and industrial applications. Their product range includes saturated steam generators from 100kW to 13MW, heat recovery boilers, and superheated steam boilers. They offer comprehensive steam system solutions designed to meet various industrial needs.

Schertz, TX

Based in Schertz, TX, COIMA USA designs, manufactures, and installs commercial biomass heating plants. The company specializes in treating and reusing industrial waste, transforming waste wood into sustainable energy solutions. They offer comprehensive systems for commercial energy generation and waste management.

Henrietta, NY

Based in Henrietta, NY, ECR International, Inc. manufactures a comprehensive range of Dunkirk brand boilers. They specialize in condensing gas, oil, electric, and combi boilers, alongside indirect hot water heaters, serving diverse heating needs.

Lebanon, NJ

Energy Kinetics manufactures high-efficiency residential and commercial gas and oil boilers. Based in Lebanon, NJ, the company provides a variety of boiler solutions designed for heating needs, focusing on energy efficiency for both homes and businesses.

Hoffman New Yorker manufactures commercial-grade steamers and boilers for the dry cleaning and laundry industries. Specializing in durable, industrial-grade hardware, the company produces all its boilers and pressing equipment in the USA, ensuring reliability and robust performance for commercial applications.

Watertown, WI

Hot Water Products manufactures powerful commercial boilers, exemplified by their Elite XL series. These commercial boilers are offered in six sizes, ranging from 400,000 Btuh to 2,000,000 Btuh, and feature a four-pass heat exchanger design. Based in Watertown, Wisconsin, the company provides robust heating solutions.

Stratford, CT

Based in Stratford, CT, Hubbell Heaters specializes in engineering and manufacturing advanced water heating solutions. They provide standard and customized systems for a wide range of commercial and industrial applications, focusing on robust and reliable performance. Hubbell also offers dedicated food service water heating products.

Coolidge, GA

Based in Coolidge, GA, Hurst Boiler & Welding Company, Inc. manufactures, designs, and services commercial gas, oil, biomass, and hybrid firetube and watertube steam and hot water boilers. Since 1967, they also produce boiler parts and boiler room peripherals, providing turnkey after-market products for complete installation and operation.

Wheeling, IL

Based in Wheeling, IL, Indeck manufactures and distributes industrial watertube boilers, including A, O, D, and Modular D steam boiler systems. They offer comprehensive industrial boiler services to ensure optimal performance and maximum efficiency for their global customer base.

Chattanooga, TN

Based in Chattanooga, TN, Industrial Boiler & Mechanical (IB&M) provides comprehensive steam plant solutions. The company specializes in the sales of new and used industrial boilers, including low NOx packaged boilers, offering emergency rentals, field service, and complete repair and maintenance for boilers and auxiliary equipment.

Phoenix, AZ

Based in Phoenix, AZ, Industrial Boilers America manufactures high-quality industrial boiler systems and auxiliary equipment. With over 20 years of experience, the company provides tailored solutions for power plants, businesses, and various commercial operations. They prioritize quality and offer competitive costs to their industrial partners.

Based in Westfield, MA, KN-Series manufactures commercial condensing cast iron boilers. A brand of ATH, which is a Mestek company, they offer boilers distinguished by a 25-year heat exchanger warranty for robust and long-lasting performance.

Cedar Rapids, IA

Based in Cedar Rapids, IA, Lattner Boiler Manufacturing Co. specializes in producing commercial-grade Low-NOx boilers. They offer AQMD certified vertical tubeless steam boilers, including their HE Model, available in four sizes ranging from 3 hp to 9.5 hp, designed for high and low-pressure applications.

Los Angeles, CA

McKenna Boiler, based in Los Angeles, CA, specializes in manufacturing custom boiler systems. They build boilers to meet specific industry requirements, offering extensive customization options to cater to diverse and unique commercial and industrial applications.

Los Angeles, CA

Parker Boiler Co., based in Los Angeles, CA, manufactures industrial steam, hot water, and thermal liquid heaters. They specialize in advanced low NOx boiler systems, known for high combustion efficiency. The company offers integrated ParkerView Controls for comprehensive system management, prioritizing dependability and safety for commercial clients.

Pottstown Engineered Products (PEP) is a US-based manufacturer specializing in commercial boilers. Located in Pottstown, PA, the company produces high-quality, American-made boilers for various industrial and commercial applications. PEP leverages decades of boiler manufacturing expertise to deliver reliable engineered solutions to its clients.

Santa Ana, CA

Powerhouse Combustion specializes in providing turnkey firetube and watertube boiler systems. They offer both packaged and standalone solutions, catering to commercial and industrial clients. The company serves customers across California and Nevada, delivering comprehensive boiler manufacturing and installation services.

Abilene, TX

Based in Abilene, TX, Rentech Boiler Systems, Inc. designs and manufactures custom boiler solutions. They produce fired packaged watertube, heat recovery steam generators, waste heat, and modular boilers. Rentech provides comprehensive repair and maintenance services for industrial and commercial clients across various sectors.

Commerce, CA

Based in Commerce, CA, Rite Engineering & Manufacturing Corp. produces high-efficiency hot water boilers and low-pressure steam boilers. They offer modern replacements for older cast iron and firebox systems, serving commercial clients with easy-to-maintain solutions.

Danville, KY

Sellers Manufacturing, based in Danville, KY, is a US manufacturer of rapid response, fire tube, and low NOx boilers for commercial and industrial applications. The company also produces deaerators, water heaters, and ancillary boiler room equipment. They are known for providing high-quality equipment with reliability, efficiency, and ease of maintenance.

Ashland City, TN

Based in Ashland City, TN, State Water Heaters manufactures a comprehensive range of hot water solutions. The company specializes in producing advanced, energy-efficient water heaters and commercial-grade combi boilers, ensuring reliable hot water supply for diverse applications. Their products cater to various customer needs.

Hutchinson, KS

Based in Hutchinson, KS, Superior Boiler manufactures custom commercial and industrial boilers. Since 1917, they have specialized in solving complex boiler challenges for essential services like sterilizing hospital equipment, heating large facilities, and supporting food and beverage production with tailored products.

Based in Lancaster, PA, Thermal Solutions Products, LLC manufactures hydronic products for commercial and industrial applications. They specialize in high-efficiency condensing and near-condensing boilers, along with hot water heaters. Their product lineup includes series like AMP and Artic, designed for diverse heating requirements.

Unilux Advanced Manufacturing designs and produces a comprehensive range of commercial and industrial boilers, including Unilux XP Series, Evolv, and Force Power models. They offer hot water, low-pressure, and high-pressure steam boilers, alongside custom engineered solutions. The company also manufactures replacement tubes for various industrial boiler types.

Sturgeon Bay, WI

Viessmann US manufactures high-efficiency heating and renewable energy systems, including innovative boilers and comprehensive heating solutions. They serve both residential and large-scale commercial building applications, integrating smart home solutions for remote monitoring and control. Products are designed for today's energy challenges.

Las Vegas, NV

Based in Las Vegas, NV, Williams & Davis Boilers is a global manufacturer of Firetube boilers. Since 1921, they have produced commercial steam, vertical steam, hot water, and thermal fluid boilers. The company also offers a full range of ancillary equipment, providing quality heat transfer solutions for various industries.

Burr Ridge, IL

Based in Burr Ridge, IL, Weil-McLain is a long-standing manufacturer with over a century of experience. The company provides dependable heating solutions, including commercial and residential boilers, heat pump systems, and indirect fired water heaters. Their products are engineered for efficiency, longevity, and real-world performance.

Based in Vancouver, WA, Wellons designs, engineers, manufactures, installs, and provides O&M services for biomass boiler systems. They serve commercial and industrial clients, offering solutions for process steam and large-scale biomass power and energy systems, including lumber dry kilns.

Menomonee Falls, WI

Based in Menomonee Falls, WI, Williamson-Thermoflo manufactures heating and air conditioning products. The company provides a range of equipment known for durable and reliable performance, suitable for commercial applications, including boiler systems under their Williamson and Thermoflo brands.

Rockmart, GA

Based in Rockmart, GA, Miura America manufactures industrial steam boilers. The company specializes in high-efficiency, low NOx modular systems, engineered to conserve energy and protect resources. Miura America provides sustainable boiler solutions for various industries, including craft breweries and chemical processing plants.

Morristown, TN

Precision Boilers, based in Morristown, TN, specializes in manufacturing high-efficiency electric boilers. They provide advanced boiler solutions designed to electrify industrial operations, assisting commercial clients in achieving their sustainability goals through clean and efficient energy conversion. The company focuses on simplifying complex energy challenges.

AERCO manufactures commercial heating solutions, including advanced boiler lines like CFR, Benchmark, and Sequoia High-Voltage Electrode Boilers. They provide hot water, steam, and jet type models for diverse commercial applications. The company emphasizes energy-efficient and smart boiler technologies, offering engineered system designs to optimize performance.

Aldrich Company is a manufacturer of firetube boilers and water heaters, serving the global market since 1936. They design and engineer steam, condensing, and hydronic boilers, along with boiler accessories and skid systems, all constructed and tested to ASME Section IV standards.

Union, NJ

Based in Union, NJ, American Boiler Company manufactures industrial boiler systems for a wide range of commercial and industrial applications. They design quality boilers and CHP systems used in power generation, mining, food processing, multi-family, healthcare, and municipal government sectors.

Chanute, KS

Babcock & Wilcox (B&W) manufactures advanced boiler technologies, including supercritical and subcritical solutions, for utility power generation. With a legacy of innovation, the company engineers proven solutions for global energy demand, providing high-quality parts and service for extended performance and reliable energy systems.

Bradford White manufactures a comprehensive line of residential, commercial, and industrial products for water heating, space heating, and storage. Based in Ambler, PA, the company specializes in advanced technology boilers and volume water heaters, offering efficient and economical heating solutions built in the United States.

Peru, IN

Based in Peru, IN, Bryan Boilers manufactures high-efficiency commercial flexible water tube boilers and advanced water heaters. The company, known for inventing the flexible water tube boiler, continuously develops its technology, delivering systems with exceptional thermal efficiency and high turndown ratios for various commercial applications.

Thomasville, GA

Based in Thomasville, GA, Cleaver-Brooks manufactures a wide range of industrial watertube boilers, heat recovery steam generators, and waste heat boilers. The company provides solutions to meet the demands of various industries, including chemical applications.

Pulaski, NY

Based in Pulaski, NY, Fulton engineers and manufactures premier heat transfer equipment for commercial and industrial applications. They offer a diverse range of boiler types, including steam, electric, condensing, and hot water boilers. Fulton also provides thermal fluid heaters, engineered systems, and ancillary equipment, supporting various industries with reliable heat solutions.

Copiague, NY

Based in Copiague, NY, Industrial Steam Boiler Corporation has over 30 years of experience engineering and manufacturing craftsman-quality packaged, field-erected, and mobile boilers. They provide steam and hot water boiler solutions for commercial and industrial applications. The company also offers a range of tanks and engineering resources.

Rochester, NH

Based in Rochester, NH, Laars engineers and manufactures commercial boilers. The company has been innovating and building advanced boiler systems since 1948 from its state-of-the-art manufacturing facility.

Lebanon, TN

Based in Lebanon, TN, Lochinvar manufactures high-efficiency water heating products for commercial applications. They specialize in a range of commercial heating boilers, including the Knight®, Noble®, Lectrus®, and Crest® models, alongside commercial tankless water heaters such as the Regent™.

NTI Boilers manufactures a range of residential and commercial heating solutions, including gas, oil, and wood boilers, combi furnaces, and heat pumps. The company provides various products for water heating and offers a comprehensive product catalog for its diverse offerings.

Raypak manufactures a diverse range of hydronic and condensing boilers designed for commercial applications. Their product lines include advanced models such as XTherm, XVers KOR, XFIIRE, Hi Delta, and Delta Limited. Specializing in high-efficiency heating solutions, Raypak provides essential products for various commercial and industrial sectors, operating as part of the Rheem family.

Smith Boilers, headquartered in Westfield, MA, manufactures durable cast iron boilers for hydronic heating systems. With over 160 years of industry experience, the company produces a wide range of commercial and residential boilers known for their rugged reliability, operating efficiencies, and longevity.

Based in Farmington, PA, U.S. Boiler Company manufactures various home heating equipment. They produce water boilers, steam boilers, hot water heaters, radiators, and comprehensive boiler control systems. The company specializes in heating solutions for both residential and commercial applications.

Hartford, CT

Utica Boilers, a brand of ECR International, manufactures a comprehensive range of heating products. Their offerings include high-efficiency condensing gas, standard gas, oil, electric, and condensing combi boilers. They also produce indirect hot water heaters and heating controls for residential and commercial applications.

Collinsville, OK

Victory Energy, based in Collinsville, OK, manufactures a comprehensive line of commercial and industrial boilers. Their products include dryback firetube, watertube, and waste heat recovery steam generators, available in various horsepower configurations starting from 50 HP. They provide integrated energy solutions.

Carrier Commercial manufactures reliable and efficient HVAC solutions for commercial and critical environments, including data centers. They provide advanced systems for heating, ventilation, and air conditioning applications, serving various industries.

Ashland City, TN

Based in Ashland City, TN, A. O. Smith manufactures commercial boilers and electric tank water heaters. They provide systems designed for businesses needing hot water and heating, serving various commercial and industrial applications with solutions for light to heavy-duty use.

Pacific Steam Equipment manufactures commercial electric boilers from 6kW to 108kW and gas boilers up to 25 HP. Serving various industries like hospitals, labs, breweries, and food processors for over 70 years, they offer custom steam solutions. Most products are available for immediate shipping.

PB Heat, LLC manufactures and supplies Peerless® brand boilers, offering a complete line of heating solutions for commercial and semi-commercial applications. They specialize in gas, oil, and combination gas/oil boiler systems, serving industrial and business needs with high-quality and reliable products.

Thermon manufactures high-pressure steam boilers designed for commercial and industrial process applications. Their product line includes STH High Pressure Steam Boilers, providing process steam above 200 psi, with custom knock-down designs for compact installations. The company also offers Vapor Power Precision Boilers and various other heating solutions.

Found what you're looking for? Unlock 39 emails and 54 phones.

How to Choose a Company

  • Verify ASME Code Compliance and National Board Registration: For pressure vessels, ensure manufacturers provide boilers stamped with the appropriate ASME Section I (power boilers) or Section IV (heating boilers) code symbol, along with a National Board data report for traceability and safety. This is non-negotiable for commercial installations.
  • Assess Turndown Ratio and Modulating Capabilities: Demand data on the boiler's turndown ratio and its burner's ability to modulate effectively. A wider turndown (e.g., 10:1 vs 4:1) prevents short-cycling in variable load applications, significantly improving combustion efficiency and reducing wear on components.
  • Evaluate Manufacturer's Service Network and Parts Availability: Beyond the initial purchase, consider the manufacturer's authorized service provider network for preventative maintenance and emergency repairs. Proprietary control systems or specialized components can lead to long lead times and expensive downtime if parts aren't readily stocked or support is geographically limited – a common gotcha.
  • Scrutinize Water Treatment Recommendations and Integration: A critical red flag is a manufacturer who doesn't emphasize or provide guidance on proper feedwater treatment. Inadequate water quality leads to scaling, corrosion, and premature boiler failure, voiding warranties and incurring massive repair costs.
  • Confirm Emissions Compliance and Low NOx Burner Technology: For new installations, specifically inquire about compliance with local air quality regulations and the availability of Low NOx burner technology. Pre-emptively specifying equipment capable of meeting future emissions limits avoids costly retrofits down the line.

Frequently Asked Questions

What's the practical difference between a firetube and watertube boiler for commercial use?

Firetube boilers pass hot combustion gases through tubes surrounded by water, are generally less expensive, quicker to install, and ideal for lower pressure steam or hot water applications with moderate load changes. Watertube boilers circulate water through tubes within a furnace, allowing for higher pressures, greater steam output, and faster response to load changes, making them suitable for critical process applications, large facilities, and high-pressure steam demands.

How does a boiler's turndown ratio impact its operating efficiency and fuel consumption?

A boiler's turndown ratio indicates the range over which its burner can operate while maintaining efficiency. A higher turndown ratio (e.g., 10:1 or 20:1) means the boiler can effectively match variable steam or hot water demands without constantly cycling on and off (short-cycling). Short-cycling wastes fuel due to purge losses, puts more stress on components, and reduces overall system efficiency. A wider turndown directly translates to better fuel efficiency and extended component life, especially in applications with fluctuating loads.

Beyond initial purchase price, what are the key factors contributing to the Total Cost of Ownership (TCO) for a commercial boiler?

TCO for a commercial boiler extends far beyond the upfront equipment cost. Major factors include fuel consumption (often 80-90% of TCO over a boiler's life), water treatment costs (chemicals, labor, blowdown losses), preventative maintenance and repair expenses (parts, labor), emissions permitting fees, and potential downtime costs. Focusing on higher-efficiency units with robust controls, a wide turndown ratio, and a reliable service network often yields significant long-term savings despite a higher initial investment.

What specific questions should I ask manufacturers regarding their compliance with Boiler MACT or local emissions regulations?

When discussing Boiler MACT (National Emission Standards for Hazardous Air Pollutants for Industrial, Commercial, and Institutional Boilers and Process Heaters) or regional clean air regulations, ask manufacturers for guaranteed emissions levels (e.g., NOx, CO, particulate matter), documentation of compliance testing, and whether their proposed unit includes integrated Low NOx burners or other emissions reduction technologies. Also, inquire about the need for continuous emissions monitoring systems (CEMS) or periodic tune-ups to maintain compliance, as these can add significant operational overhead.

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