HAMPDEN ENGINEERING CORPORATION has built a reputation for manufacturing Cutting Edge, Engineering and Technology Training Equipment of the highest quality since 1954.

Harry Alter Co. is a renowned US-based wholesale distribution of heating and air conditioning equipment, parts and supplies. They provide furnaces, air conditioners, hydronic heating solutions and refrigeration supplies.

Hawco is an international distributor and a UK wholesaler of HVAC products. They provide Refrigeration systems, Air Conditioning, Electrical Process & Control, HVACR, Components, Process Heating Control, and Process Heating.

Heat Merchants supplies a comprehensive portfolio of heating, plumbing and renewable energy solutions for both domestic and commercial projects. They also provide a range of support services to customers include heating system design and specification, commissioning, ancillary certification, after-sale service and installer training.

Heatex is a cleantech company that optimizes and develops energy-saving thermodynamic products and solutions that contribute to a sustainable future.

Heating and Air Conditioning Supply, Inc. is a proud local distributor of Armstrong Air and Ducane HVAC equipment. Since Heating and Air Conditioning Supply, Inc.'s debut in 2003, they have experienced enormous growth due to experienced staff with excellent product knowledge, quality materials at the lowest prices available and an extreme focus on customer service.

Since its founding in 1910, Hitachi has responded to the expectations of society and its customers through technology and innovation. They provide a wide range of services, including HVAC systems, Information & Telecommunication Systems, Social Infrastructure & Industrial Systems, Electronic Systems & Equipment, Construction Machinery, High Functional Materials & Components, Automotive Systems, Smart Life & Ecofriendly Systems.

HK Instruments is a Finnish company specialized in designing and manufacturing highly accurate and easy-to-use measuring devices for HVAC applications. devices are mainly used in ventilation systems and building automation.

Holtop Canada supplies CSA-certified ductless ERVs built for modular, prefab, and energy-efficient homes. Their systems improve indoor air quality with quiet, efficient fresh air ventilation — no ductwork needed. With up to 82% heat recovery, they help builders and home owners save energy and breathe easier.

Hometown Comfort Pros Heating and Air provide heating and air conditioning services in Forest Virginia, Bedford Virginia, Evington Virginia, Madison Heights Virginia, Amherst Virginia, and Smith Mountain Lake Virginia regions.

HTS is the largest independent built-to-order commercial and industrial full-service HVAC distributor in North America. It is committed to the shared success of all involved in the design, selection, installation, and maintenance of the right HVAC solution for each project.

HVAC is an acronym that stands for Heating, Ventilation, and Air Conditioning. Sometimes you will also see the acronym HVACR, with the extra R representing Refrigeration. This industry is a popular one for many seeking a new career as there is a great demand and the pay can be quite good. If you are interested in entering the rewarding world of heating, cooling, ventilation, and refrigeration, you will need some education. One good place to start

At HVAC Parts Warehouse find all of the HVAC parts & accessories one needs for the job! They carry products from all large name brands.

HVAC PLUS is a premier reseller of commercial replacement parts for heating, ventilation, and air conditioning equipment. Their main focus is on high quality replacement HVAC parts for systems made by the industry's top manufacturers, including Carrier, York, Trane, McQuay, Barber Coleman and GE Motors.

IERNA's Heating & Cooling offers quality air and expert HVAC service for customers home. They provide their customers with expert installers, knowledgeable, experienced technicians, and friendly customer service representatives.

iHaul Freight Ltd. is full service transportation, distribution and logistics company providing a complete range of services, everything from Refrigerated Transport and LTL, to Warehouse services and Logistics.

Illco Inc. is a wholesale distributor of heating, ventilation, air-conditioning and refrigeration equipment, parts and supplies. They offer manufactured materials and aims to keep the highest levels of inventory on hand.

ISC is a premier Canadian wholesale supplier of Heating, Ventilation, Air Conditioning & Refrigeration products. They have an expanding support network in Pacific Canada, the Prairies and Ontario to service their growing customer base.

Insight Partners provides commercial HVAC equipment and solutions for customers across a variety of markets and industries. With a combined 80+ years of HVAC experience, Insight Partners brings together a network of the best resources, people, and cultivated industry knowledge to give its partners a unique advantage over the complex challenges.

Irr Supply Centers, Inc. is a renowned distributor of Plumbing, Heating, Cooling, Electrical, and Refrigeration products serving a wide range of customers throughout Western/Central New York and Northern Pennsylvania.

ISC Sales Inc. provides superior industrial products to a wide variety of end-users and original equipment manufacturers (OEM). They offer a broad range of climate control products for electrical enclosures, such as air conditioners, vortex coolers, air to air heat exchangers, purge & pressurization units, filtered fans, and thermoelectric coolers.

Founded in 1952, ISVAL is a leading manufacturer of hot forged and machined brass and aluminium products. Equipped for medium and large size production, ISVAL can meet even the most custom-made requests, thanks to more than sixty-year experience and to a proactive approach to customers.

IVATION™ isn’t about products, it’s about passions and the people driven by them. In their world, trite is non-existent because they believe their customers are insightful and will recognize and appreciate the authenticity of their talent displayed in their products. They’re not about technical jargon or phrases, rather they’re about the products and ideas that inspired people to create them.

One of Ukraine's leaders in the complete spectrum of climate control solutions.

Jackson Systems is an HVAC controls distributor for the residential and light commercial markets. The company specializes in zoning, thermostats, and home automation products.

Jay Moody HVAC is a family-owned and operated home services company with over 40 years of experience in the industry. Based in Leominster, MA, they proudly serve homeowners throughout Central Massachusetts, providing engineer-designed HVAC, plumbing, and electrical solutions that maximize comfort and efficiency.

JayKay Sales Company is an HVAC manufacturer's representative agency dedicated to providing professional, competent, and courteous sales and service support to customers of the high-quality manufacturers we represent.

Johnson Supply is a HVACR wholesale distributors in Texas and Louisiana. They have 24 locations as of date and deals with distribution of products like Condensing Units, Curb Adapters, Packaged - Cool Only & Electric Heat, Packaged - Gas Heat, Evaporator Coils, and Air Handling Units.

Johnstone Supply is a HVACR wholesale distributor. They offer a variety of options in unitary and specialty equipment, repair and replacement parts, and maintenance supplies for Residential, Light Commercial, Refrigeration and Facilities Maintenance.

Keller Air is a leading wholesale supplier of HVAC equipment, supplies and parts distributed though it's 22 Branches located in seven Pacific Northwest states. Keller Air features a roster of product lines including Rheem, Samsung, Bradford White, Continental Fireplaces, Honeywell, White-Rogers, Fantech, Hart and Cooley, Dura-Vent, Ecco heating products and Southwark Metal products.