Trusted Industrial Heating Equipment from Leading Manufacturers

We represent a proven network of manufacturers offering reliable, energy-efficient equipment for industrial heating systems. Whether you’re sourcing boilers, burners, or complete HVAC solutions, we help contractors and engineers find the right products for efficient, long-lasting performance.

We Help You Choose What Works

Helping Contractors and Engineers Make Smarter Equipment Decisions

We assist contractors and engineers by providing transparent, data-driven insight into equipment cost, lifecycle performance, maintenance requirements, and overall system efficiency. From application and installation cost to energy usage and long-term ROI, we help you evaluate what truly works for your project.

No greenwashing, just high-performing equipment, real numbers, and trusted advice. Our team also supports you with startup guidance, application engineering, and long-term equipment support whenever you need it.

AbsolutAire logo with green triangle design and company name

Absolut Aire

Custom-built direct-fired air handling solutions ranging from 800 to 105,000 CFM. AbsolutAire systems are ideal for large-scale industrial ventilation and make-up air needs, offering energy-efficient performance with VFDs and tailored configurations for spray booths, bake cycles, and 100% outside air applications.

Bryan Boilers logo in brown and black with tagline Flexible Tube Boilers

Bryan Boilers

A leader in flexible water tube boilers for industrial steam and hot water applications. Bryan offers customizable systems up to 300 PSI and 500 BHP, including deaerators and feedwater systems engineered for reliable, space-saving, and long-lasting operation in tough industrial environments.

Burnham Commercial Boilers logo with metallic design

Burnham Commercial Boilers

Made in the USA, Burnham offers UL-listed cast-iron and steel boilers engineered for high-performance commercial and institutional heating systems. Their MPC line and shock-proof designs are trusted for durability, ease of maintenance, and proven field performance.

Hamilton Engineering logo with globe graphic and tagline Innovative Hot Water Solutions

Hamilton Engineering

Specializing in energy-saving condensing boilers and water heaters, Hamilton’s EVO product line supports projects where high efficiency and low emissions are essential. Ideal for commercial hot water applications requiring consistent output and long-term cost control.

Solaronics logo with red text

Solaronics

Offering both direct and indirect infrared heating systems, Solaronics products are perfect for large open spaces like warehouses and service bays. Built for simplicity, low maintenance, and fuel flexibility, their units are available in stainless steel with 24V, 120V, or millivolt options.

Thermal Solutions logo with sun graphic and tagline Innovative Equipment for Hot Water Systems

Thermal Solutions Products

Thermal Solutions’ high-efficiency copper-finned boilers and water heaters are built for demanding commercial heating environments. Their Evolution line delivers excellent thermal efficiency with compact footprints, making them ideal for retrofits and new system designs alike.

Thermo-Cycler logo with red and blue flame graphic

Thermo Cycler

Featuring Thermo-Rotation technology, Thermo-Cycler units deliver even air distribution, low noise levels, and energy savings. With capacities from 200–1,800 MBH, their make-up air systems are ideal for industrial and institutional facilities where comfort, air quality, and efficiency matter.

Webster Combustion logo with blue flame graphic and tagline A Selas Heat Technology Company

Webster Combustion

Known for dependable burner systems with advanced pilot technology, Webster supports a variety of fuels including natural gas, #2 oil, and digester gas. Their low-NOx, linkageless designs are engineered for high-efficiency combustion and precise fuel control in industrial boiler systems.

Sterlco Steam Control Products

Sterling is an innovator in temperature control units for plastics and industrial applications. For more than 100 years, Sterling and the Sterlco® brand have been synonymous with dependable temperature control for applications in plastics, food and beverage, pharmaceutical and many other industries.

Sterlco Steam Control Products

SCC Inc., a leading supplier of a wide range of innovative products and complete solutions in the combustion control field.

Testimonials

What Our Clients Say

From responsive service to reliable equipment, our clients count on us to keep their projects moving. Hear it directly from the teams we support.

Excellent Service, been with them for 5 years and they have gone above and beyond to help. The service is great and they are very responsive to the YMCA needs.

Ava M.
CEO – NovaEdge Solutions

L.D. Thornton & Associates website is well organized and informative, clearly showcasing their expertise in energy efficient HVAC solutions and commitment to real world performance.

Liam C.
PM- BrightPeak Innovations

Stay Connected With L.D. Thornton & Associates

Follow us on LinkedIn and Facebook for heating system insights, contractor tips, and a behind-the-scenes look at our team in action. From new equipment installs to everyday jobsite moments, see how LD Thornton helps contractors get the job done right.

Thornton & Associates staff at community golf outing event
Group touring manufacturing facility with industrial equipment
Close-up view of industrial boiler internal tubing at trade show
Thornton & Associates team members enjoying a company dinner event

Need Reliable Industrial Heating Solutions for Your Next Project?

Whether you’re sourcing HVAC equipment, planning a new mechanical room, or need expert support with heating system design, LD Thornton helps contractors and engineers deliver results. Our team provides trusted industrial products, design consulting, and accurate quotes tailored to your project’s specs and timeline.