American Water Heaters is a globally renowned manufacturer and installer of high-quality water heater products. Their manufacturing, research and development and corporate offices are located in Johnson City, Tennessee. American Water Heaters offers a comprehensive line of residential and commercial water heaters.

Manufacturer of PTC NTC thermistors and thermistor temperature sensors probe Pressure Sensors. AMWEI thermistors for over-current overload protection, temperature sensing and protection, self-regulation heating, silicon PTC thermistor sensor, etc.

Manufacturer and supplier of level, flow and pressure switches and level transmitters for chillers and other HVAC applications.

Packaged terminal air conditioners, packaged terminal heat pumps, through the wall room air conditioner.

Duct heating products for commercial and residential HVAC equipment that include custom electric duct heaters, load banks, OEM, replacement elements, and parts.

Air conditioning heat pump and refrigeration compressors.

For 75 years Burr OAK Tool Inc. has delivered machines, tools, and expertise to the world's heat exchange manufacturers and tube processing industries. Heat exchangers are an integral part of air conditioning, heating, refrigeration, and air handling units.

Supplier of gas, steam or electric reactivated desiccant dehumidifiers for humidity control. Systems include outdoor air ventilation coupled with heating and cooling if required.

A wholly owned subsidiary of Daikin Industries Ltd., delivers engineered advanced HVAC technology for commercial, industrial and institutional customers with knowledgeable application expertise.

Heating and air conditioning equipment for residential and commercial applications, 1/2 to 25 tons, under the Comfort-Aire and Century brand names.

Heatco manufactures gas-fired stainless steel duct heaters. Their mission is to design, build, and deploy America’s highest quality gas heaters while providing industry-leading customer satisfaction.

HeatLink Group Inc. is a multi-system supplier of potable water and radiant hydronic heating/cooling and snow melt systems. For over 20 years they have created comfortable and efficient heating, cooling and plumbing systems for residential and commercial construction. HeatLink’s radiant heating systems create a comfortable and energy efficient environment for living.

HTS unites top brands -- Honeywell Combustion Safety, Honeywell Combustion Service, Eclipse, Exothermics, Hauck, Kromschröder, Maxon and Honeywell Combustion Controls -- delivering the best in thermal solutions.

Manufacturer of residential and industrial chimney, gas vents, pressure stacks, pipe and fittings; RSF and Renaissance brands are high efficiency and decorative wood-burning fireplaces.

Intellihot is an energy company dedicated to advancing energy efficient technology and solutions. Intellihot designs, manufactures and assembles tankless water heaters for residential, commercial and industrial applications. Their products include the most advanced tankless water heater for commercial applications.

Kalglo Electronics, incorporated in 1969, is a manufacturer of electric radiant infrared heaters, electronic heating and lighting controls, and surge protection equipment. Kalglo is a veteran majority owned small business with product manufacturing based in USA.

LAARS Heating Systems Co. manufactures residential and commercial boilers, volume-water-heaters and commercial pool heaters from 50,000 to 5,000,000 BTU's as well as storage, buffer and solar tanks.

A worldwide leader in residential and commercial heating and air conditioning systems, Lennox Industries Inc. is based near Dallas, Texas.

Markel Products is a renowned provider of commercial, industrial, residential electric heating equipment, industrial ventilation, controls, industrial lighting, portable air conditioning and portable evaporative cooling solutions.

A worldwide manufacturer, master distributor and exporter of high quality, innovative products designed for the Heating, Ventilation, Air Conditioning, Refrigeration and Appliance parts industries.

STELPRO is a globally renowned company in electric heating, heating cables, ventilation and electronic controls. It offers a wide range of quality HVAC products designed and manufactured in Canada.

SRP manufactures a full range of energy-efficient gas fired, high and low intensity infrared space heating equipment for the commercial, industrial, agricultural, residential and hospitality markets with facilities in USA, Canada and China.

UNICO Inc. is the maker of The Unico System which is a small-duct, high-velocity central heating and air conditioning system.

For over 100 years, Williams Comfort Products, located in California, has been manufacturing a wide array of comfort HVAC equipment including air curtains, DX and hydronic fan coils, air handlers, gas heating equipment and total space dehumidifiers.