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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" | Product link |
| DR12HFA | Downblast | 1/4 | 115V / 1 | 400 – 1,200 | No (UL705) | 19" x 19" | Product link |
| DR30HFA | Downblast | 1/4 | 115V / 1 | 600 – 1,800 | No (UL705) | 21" x 21" | Product link |
| DR33HFA | Downblast | 1/3 | 115V / 1 | 800 – 2,200 | No (UL705) | 21" x 21" | Product link |
| DR50HFA | Downblast | 1/2 | 115V / 1 | 1,200 – 3,000 | No (UL705) | 21" x 21" | Product link |
| DR85HFA | Downblast | 3/4 | 115V / 1 | 2,000 – 5,000 | No (UL705) | 24 3/4" x 24 3/4" | Product link |
| DR180HFA | Downblast | 2 | 208V / 3 | 3,500 – 8,500 | No (UL705) | 28" x 28" | Product link |
| DR200HFA | Downblast | 3 | 208V / 3 | 4,500 – 10,500 | No (UL705) | 28" x 28" | Product link |
| DR360HFA | Downblast | 7-1/2 | 208V / 3 | 8,000 – 18,000+ | No (UL705) | 44" x 44" | Product link |
| DU33HFA | Upblast | 1/3 | 115V / 1 | 500 – 1,500 | Yes (UL762) | 16" x 16" | Product link |
| DU50HFA | Upblast | 1/2 | 115V / 1 | 900 – 2,500 | Yes (UL762) | 21" x 21" | Product link |
| DU85HFA | Upblast | 3/4 | 115V / 1 | 1,800 – 4,500 | Yes (UL762) | 24 3/4" x 24 3/4" | Product link |
| DU85HFA | Upblast | 1 | 115V / 1 | 1,800 – 4,500 | Yes (UL762) | 24 3/4" x 24 3/4" | Product link |
| DU180HFA | Upblast | 1-1/2 | 208/3 | 3,500 – 8,500 | No (UL705) | 28" x 28" | Product link |
| DU180HFA | Upblast | 1-1/2 | 208/3 | 3,500 – 8,500 | Yes (UL762) | 28" x 28" | Product link |
| DU180HFA | Upblast | 2 | 208v/3 | 3,500 – 8,500 | Yes (UL762) | 28" x 28" | Product link |
| DU200HFA | Upblast | 3 | 208/3 | 4,500 – 11,000 | Yes (UL762) | 28" x 28" | Product link |
| DU200HFA | Upblast | 5 | 208/3 | 4,500 – 11,000 | Yes (UL762) | 28" x 28" | Product link |
| DU240HFA | Upblast | 5 | 209/3 | 6,000 – 14,000 | Yes (UL762) | 33" x 33" | Product link |
| DU360HFA | Upblast | 10 | 208/3 | 10,000 – 22,000+ | Yes (UL762) | 44" x 44" | Product link |
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-G10 | Direct Gas Fired Heated Make Up Air Unit with 10" Blower | Text for pricing |
| A1-D.250-G10D | Direct Drive Direct Fired Heater Unit with 10" Blower in Size #1 Housing with speed control, disconnect switch. | Text for pricing |
| A1-D.500-G10 | Direct Gas Fired Heated Make Up Air Unit with 10" Blower | Text for pricing |
| A1-D.500-G10D | Direct Drive Direct Fired Heater Unit with 10" Blower in Size #1 Housing with speed control, disconnect switch. | Text for pricing |
| A1-D.250-15D | Direct Gas Fired Heated Make Up Air Unit with 15" Mixed Flow Direct Drive Fan | Text for pricing |
| A1-D.500-15D | Direct Gas Fired Heated Make Up Air Unit with 15" Mixed Flow Direct Drive Fan | Text for pricing |
| A1-D.250-16Z | Direct Gas Fired Heated Make Up Air Unit with 16" Direct Drive Fan | Text for pricing |
| A1-D.500-16Z | Direct Gas Fired Heated Make Up Air Unit with 16" Direct Drive Fan | Text for pricing |
| A1-D.250-18Z | Direct Gas Fired Heated Make Up Air Unit with 18" Direct Drive Fan | Text for pricing |
| A1-D.500-18Z | Direct Gas Fired Heated Make Up Air Unit with 18" Direct Drive Fan | Text for pricing |
| A2-D.250-G15 | Direct Gas Fired Heated Make Up Air Unit with 15" Blower | Text for pricing |
| A2-D.500-G15 | Direct Gas Fired Heated Make Up Air Unit with 15" Blower | Text for pricing |
| A2-D.750-G15 | Direct Gas Fired Heated Make Up Air Unit with 15" Blower | Text for pricing |
| A2-D.250-20D | Direct Gas Fired Heated Make Up Air Unit with 20" Mixed Flow Direct Drive Fan | Text for pricing |
| A2-D.250-20Z | Direct Gas Fired Heated Make Up Air Unit with 20" Direct Drive Fan | Text for pricing |
| A2-D.500-20D | Direct Gas Fired Heated Make Up Air Unit with 20" Mixed Flow Direct Drive Fan | Text for pricing |
| A2-D.500-20Z | Direct Gas Fired Heated Make Up Air Unit with 20" Direct Drive Fan | Text for pricing |
| A2-D.750-20D | Direct Gas Fired Heated Make Up Air Unit with 20" Mixed Flow Direct Drive Fan | Text for pricing |
| A2-D.750-20Z | Direct Gas Fired Heated Make Up Air Unit with 20" Direct Drive Fan | Text for pricing |
| A2-D.250-22Z | Direct Gas Fired Heated Make Up Air Unit with 22" Direct Drive Fan | Text for pricing |
| A2-D.500-22Z | Direct Gas Fired Heated Make Up Air Unit with 22" Direct Drive Fan | Text for pricing |
| A2-D.750-22Z | Direct Gas Fired Heated Make Up Air Unit with 22" Direct Drive Fan | Text for pricing |
| A3-D.500-G18 | Direct Gas Fired Heated Make Up Air Unit with 18" Blower and 12" Burner. | Text for pricing |
| A3-D.750-G18 | Direct Gas Fired Heated Make Up Air Unit with 18" Blower and 18" Burner. | Text for pricing |
| A3-D.1000-G18 | Direct Gas Fired Heated Make Up Air Unit with 18" Blower and 24" Burner. | Text for pricing |
| A3-D.500-24D | Direct Gas Fired Heated Make Up Air Unit with 24" Mixed Flow Direct Drive Fan and 12" Burner. | Text for pricing |
| A3-D.750-24D | Direct Gas Fired Heated Make Up Air Unit with 24" Mixed Flow Direct Drive Fan and 18" Burner. | Text for pricing |
| A3-D.1000-24D | Direct Gas Fired Heated Make Up Air Unit with 24" Mixed Flow Direct Drive Fan and 24" Burner. | Text for pricing |
| A3-D.500-25Z | Direct Gas Fired Heated Make Up Air Unit with 25" Direct Drive Fan and 12" Burner. | Text for pricing |
| A3-D.750-25Z | Direct Gas Fired Heated Make Up Air Unit with 25" Direct Drive Fan and 18" Burner. | Text for pricing |
| A3-D.1000-25Z | Direct Gas Fired Heated Make Up Air Unit with 25" Direct Drive Fan and 24" Burner. | Text for pricing |
| A4-D.1000-920 | Direct Gas Fired Heated Make Up Air Unit with 20" Blower and 24" Burner. | Text for pricing |
| A4-D.1500-920 | Direct Gas Fired Heated Make Up Air Unit with 20" Blower and 30" Burner. | Text for pricing |
| A4-D.1000-28Z | Direct Gas Fired Heated Make Up Air Unit with 28" Direct Drive Fan and 24" Burner. | Text for pricing |
| A4-D.1500-28Z | Direct Gas Fired Heated Make Up Air Unit with 28" Direct Drive Fan and 30" Burner. | Text for pricing |
| A4-D.1000-30D | Direct Gas Fired Heated Make Up Air Unit with 30" Mixed Flow Direct Drive Fan and 24" Burner. | Text for pricing |
| A4-D.1500-30D | Direct Gas Fired Heated Make Up Air Unit with 30" Mixed Flow Direct Drive Fan and 30" Burner. | Text for pricing |
| A5-D.2000-925 | Direct Gas Fired Heated Make Up Air Unit with 25" Blower and 48" Burner | Text for pricing |
| A5-D.2500-925 | Direct Gas Fired Heated Make Up Air Unit with 25" Blower and 60" Burner | Text for pricing |
| A5-D.2000-36D | Direct Gas Fired Heated Make Up Air Unit with 36" Mixed Flow Direct Drive Fan and 48" Burner | Text for pricing |
| A5-D.2500-36D | Direct Gas Fired Heated Make Up Air Unit with 36" Mixed Flow Direct Drive Fan and 60" Burner | Text 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.