Direct Fired Air Handlers are perfect for any company looking to get the maximum efficiency from their heating system and leave the earth a little greener. These units come with a specific type of burner, which allows for complete combustion and the cleanest air possible. Due to the efficiency of the burner, once the outside air is blown over it, the air is able to be discharged immediately into the condition space.

A direct fired air handler burns hundreds of times more efficiently than the gas stove or oven in your home. Because these machines are designed, built and certified by an independent testing organization, to meet the strictest of OSHA guidelines and international standards, their safety of operation has never been in question.

At Rapid Engineering, we offer two type of air handlers: the Direct Fired 2000 Series and the Direct Fired 4000 Series.

Commercial GRADE

The 2000 series is ideal for commercial and light industrial facilities. They are highly durable, manufactured with sturdy panel construction that is screwed and bolted together. All units come with a hinged general access door for easy maintenance of the burner and motor.

Direct Fired Air Handlers

Industrial GRADE

The 4000 series is perfect for industrial facilities due to their customizable design and rugged construction. They are made with welded steel construction, 16 gauge wall casing and the most efficient fan wheels available.

Direct Fired HVAC System


Our Direct Fired Air handlers are found in a variety of industries and building types throughout the United States, including:

  • Foundry
  • Warehouse and distribution centers
  • Welding and fabrication manufacturing
  • Steel storage and distribution
  • Aviation and heavy equipment painting booths
  • Plastic injection facilities
  • Aircraft Hangars
  • Bus garages
  • Vehicle repair shops
  • Food, candy, beverage and alcohol storage facilities
  • Commercial kitchens
  • Indoor sports arenas
  • Water treatment facilities
  • Waste water treatment plants

Rapid Engineering has been leading the industry with technical innovations and an unequaled commitment to customer satisfaction for over 50 years. We were the first manufacturer to secure independent, third party design and safety certification of a direct fired air handler equipped with DDC controls. We've provided equipment for leading Fortune 500 companies and specialize in providing the highest value available.

We take pride in our work, our equipment and our customers. For more information on our direct fired air handlers or to speak to one of our highly trained and qualified experts, please contact us.