Direct Fired Heated Makeup Air Unit

Heated Makeup Air for Industrial Buildings

100% Outside Air Heating, 800 to 130,000 CFM

Prices starting from

Original price was: $1,499.Current price is: $1,299.

847-674-0000

Call us Monday – Friday 8 am – 6 pm CST

Have questions? Need bulk pricing?

Please feel free to contact us for additional help with your selections and to discuss available discounts

* Non-standard delivery locations or off-loading methods may carry additional fees.
* See the shipping tab below for additional details

Direct Fired Heated Makeup Air Unit Specifications
Heating Type
Direct Gas-Fired Heating
CFM
800 – 130,000
BTU
0 – 17,000,000
Unit Location
Indoor • Outdoor
Air System Type
100% Outside Air
Cooling Options
Customizable
Gas Type
NG • LP
Variable Air Volume
Optional
Filtration
Filtered Intake

Direct Fired Makeup Air Unit

Exhaust fans leave a plant cold and under negative pressure. A direct fired makeup air unit fixes both. AbsolutAire direct fired units heat 100% outside air from 800 to 130,000 CFM.

Already know what you need? Call 847-674-0000 and an engineer will check the unit against your spec.

Direct Fired Series and Capacities

AbsolutAire builds four direct fired series. Match your exhaust airflow to the range below.

    • V-Series: 800 to 14,000 CFM, up to 1,125 MBH. Heats, cools, or both.
    • AA-Series: 800 to 54,000 CFM, up to 7,600 MBH. Draw-through make-up air.
    • H-Series: 800 to 54,000 CFM, up to 7,600 MBH. Draw-through space heating.
    • R-Series: 4,000 to 130,000 CFM, up to 17,000 MBH. Large building pressurization.

Compare these with recirculating models in our direct fired heater selector, or see the full make-up air unit range.

Direct Fired Makeup Air Unit FAQ

How efficient is a direct fired makeup air unit?

A direct fired makeup air unit puts nearly all of the fuel’s heat into the supply air, since it has no heat exchanger or flue. AbsolutAire rates its R-Series burner at 99.8% efficiency.

How far does a direct fired burner turn down?

The AbsolutAire R-Series burner turns down 30:1. At 30:1, the burner can fire as low as about 3% of its rated input, so discharge temperature holds steady on mild days.

Not sure which direct fired unit fits your building? Our engineers match the unit to the words in your spec. Call 847-674-0000.

Share this Direct Fired Heated Makeup Air Unit: