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UL-rated upblast, downblast, and make-up air units designed for restaurants and tight timelines. Shipping Fast Nationwide.

Check out our UpblastDownbastMAU's Fans available for quikship!

ServiceFirstUSA offers a full selection of commercial HVAC fans, including upblast and downblast roof exhaust fans, grease-rated units, and custom makeup air units. Designed for commercial applications, all fans listed are ready to order and ship fast nationwide. 

Whether replacing a rooftop exhaust fan or a makeup air unit, you’ll find complete specifications and a streamlined quote process.

Questions? Text or Call Us at 312-774-6902 for Fast Quotes & Lead Times

Model Fan Type HP Voltage CFM Range Grease Rated Base Size Product Link
DR10HFA Downblast 1/6 115V / 1 300 – 800 No (UL705) 19" x 19"
DR12HFA Downblast 1/4 115V / 1 400 – 1,200 No (UL705) 19" x 19"
DR30HFA Downblast 1/4 115V / 1 600 – 1,800 No (UL705) 21" x 21"
DR33HFA Downblast 1/3 115V / 1 800 – 2,200 No (UL705) 21" x 21"
DR50HFA Downblast 1/2 115V / 1 1,200 – 3,000 No (UL705) 21" x 21"
DR85HFA Downblast 3/4 115V / 1 2,000 – 5,000 No (UL705) 24 3/4" x 24 3/4"
DR180HFA Downblast 2 208V / 3 3,500 – 8,500 No (UL705) 28" x 28"
DR200HFA Downblast 3 208V / 3 4,500 – 10,500 No (UL705) 28" x 28"
DR360HFA Downblast 7-1/2 208V / 3 8,000 – 18,000+ No (UL705) 44" x 44"
DU33HFA Upblast 1/3 115V / 1 500 – 1,500 Yes (UL762) 16" x 16"
DU50HFA Upblast 1/2 115V / 1 900 – 2,500 Yes (UL762) 21" x 21"
DU85HFA Upblast 3/4 115V / 1 1,800 – 4,500 Yes (UL762) 24 3/4" x 24 3/4"
DU85HFA Upblast 1 115V / 1 1,800 – 4,500 Yes (UL762) 24 3/4" x 24 3/4"
DU180HFA Upblast 1-1/2 208/3 3,500 – 8,500 No (UL705) 28" x 28"
DU180HFA Upblast 1-1/2 208/3 3,500 – 8,500 Yes (UL762) 28" x 28"
DU180HFA Upblast 2 208v/3 3,500 – 8,500 Yes (UL762) 28" x 28"
DU200HFA Upblast 3 208/3 4,500 – 11,000 Yes (UL762) 28" x 28"
DU200HFA Upblast 5 208/3 4,500 – 11,000 Yes (UL762) 28" x 28"
DU240HFA Upblast 5 209/3 6,000 – 14,000 Yes (UL762) 33" x 33"
DU360HFA Upblast 10 208/3 10,000 – 22,000+ Yes (UL762) 44" x 44"

CFM ranges are approximate and vary by motor, voltage, and static pressure. Final selection should be verified against manufacturer submittals.

Commercial Made-to-Order Direct Gas Make-Up Air Units
Built per job. Sized, quoted, and configured for your application.

Model Description Pricing
A1-D.250-G10Direct Gas Fired Heated Make Up Air Unit with 10" BlowerText for pricing
A1-D.250-G10DDirect Drive Direct Fired Heater Unit with 10" Blower in Size #1 Housing with speed control, disconnect switch.Text for pricing
A1-D.500-G10Direct Gas Fired Heated Make Up Air Unit with 10" BlowerText for pricing
A1-D.500-G10DDirect Drive Direct Fired Heater Unit with 10" Blower in Size #1 Housing with speed control, disconnect switch.Text for pricing
A1-D.250-15DDirect Gas Fired Heated Make Up Air Unit with 15" Mixed Flow Direct Drive FanText for pricing
A1-D.500-15DDirect Gas Fired Heated Make Up Air Unit with 15" Mixed Flow Direct Drive FanText for pricing
A1-D.250-16ZDirect Gas Fired Heated Make Up Air Unit with 16" Direct Drive FanText for pricing
A1-D.500-16ZDirect Gas Fired Heated Make Up Air Unit with 16" Direct Drive FanText for pricing
A1-D.250-18ZDirect Gas Fired Heated Make Up Air Unit with 18" Direct Drive FanText for pricing
A1-D.500-18ZDirect Gas Fired Heated Make Up Air Unit with 18" Direct Drive FanText for pricing
A2-D.250-G15Direct Gas Fired Heated Make Up Air Unit with 15" BlowerText for pricing
A2-D.500-G15Direct Gas Fired Heated Make Up Air Unit with 15" BlowerText for pricing
A2-D.750-G15Direct Gas Fired Heated Make Up Air Unit with 15" BlowerText for pricing
A2-D.250-20DDirect Gas Fired Heated Make Up Air Unit with 20" Mixed Flow Direct Drive FanText for pricing
A2-D.250-20ZDirect Gas Fired Heated Make Up Air Unit with 20" Direct Drive FanText for pricing
A2-D.500-20DDirect Gas Fired Heated Make Up Air Unit with 20" Mixed Flow Direct Drive FanText for pricing
A2-D.500-20ZDirect Gas Fired Heated Make Up Air Unit with 20" Direct Drive FanText for pricing
A2-D.750-20DDirect Gas Fired Heated Make Up Air Unit with 20" Mixed Flow Direct Drive FanText for pricing
A2-D.750-20ZDirect Gas Fired Heated Make Up Air Unit with 20" Direct Drive FanText for pricing
A2-D.250-22ZDirect Gas Fired Heated Make Up Air Unit with 22" Direct Drive FanText for pricing
A2-D.500-22ZDirect Gas Fired Heated Make Up Air Unit with 22" Direct Drive FanText for pricing
A2-D.750-22ZDirect Gas Fired Heated Make Up Air Unit with 22" Direct Drive FanText for pricing
A3-D.500-G18Direct Gas Fired Heated Make Up Air Unit with 18" Blower and 12" Burner.Text for pricing
A3-D.750-G18Direct Gas Fired Heated Make Up Air Unit with 18" Blower and 18" Burner.Text for pricing
A3-D.1000-G18Direct Gas Fired Heated Make Up Air Unit with 18" Blower and 24" Burner.Text for pricing
A3-D.500-24DDirect Gas Fired Heated Make Up Air Unit with 24" Mixed Flow Direct Drive Fan and 12" Burner.Text for pricing
A3-D.750-24DDirect Gas Fired Heated Make Up Air Unit with 24" Mixed Flow Direct Drive Fan and 18" Burner.Text for pricing
A3-D.1000-24DDirect Gas Fired Heated Make Up Air Unit with 24" Mixed Flow Direct Drive Fan and 24" Burner.Text for pricing
A3-D.500-25ZDirect Gas Fired Heated Make Up Air Unit with 25" Direct Drive Fan and 12" Burner.Text for pricing
A3-D.750-25ZDirect Gas Fired Heated Make Up Air Unit with 25" Direct Drive Fan and 18" Burner.Text for pricing
A3-D.1000-25ZDirect Gas Fired Heated Make Up Air Unit with 25" Direct Drive Fan and 24" Burner.Text for pricing
A4-D.1000-920Direct Gas Fired Heated Make Up Air Unit with 20" Blower and 24" Burner.Text for pricing
A4-D.1500-920Direct Gas Fired Heated Make Up Air Unit with 20" Blower and 30" Burner.Text for pricing
A4-D.1000-28ZDirect Gas Fired Heated Make Up Air Unit with 28" Direct Drive Fan and 24" Burner.Text for pricing
A4-D.1500-28ZDirect Gas Fired Heated Make Up Air Unit with 28" Direct Drive Fan and 30" Burner.Text for pricing
A4-D.1000-30DDirect Gas Fired Heated Make Up Air Unit with 30" Mixed Flow Direct Drive Fan and 24" Burner.Text for pricing
A4-D.1500-30DDirect Gas Fired Heated Make Up Air Unit with 30" Mixed Flow Direct Drive Fan and 30" Burner.Text for pricing
A5-D.2000-925Direct Gas Fired Heated Make Up Air Unit with 25" Blower and 48" BurnerText for pricing
A5-D.2500-925Direct Gas Fired Heated Make Up Air Unit with 25" Blower and 60" BurnerText for pricing
A5-D.2000-36DDirect Gas Fired Heated Make Up Air Unit with 36" Mixed Flow Direct Drive Fan and 48" BurnerText for pricing
A5-D.2500-36DDirect Gas Fired Heated Make Up Air Unit with 36" Mixed Flow Direct Drive Fan and 60" BurnerText for pricing

All MAU’s are made to order. Lead times vary — text/call us for current build schedules and expedited options.

Serving contractors across Chicago and nationwide, Service First USA supplies commercial exhaust fans and make-up air units for restaurants, warehouses, and industrial facilities. Local pickup and nationwide shipping available.