Download PDF for Print 6/8/2026

Direct Fired Make-up Air Heater

Item

Designed for commercial kitchen applications or industrial buildings with process exhaust. The direct gas burners are 92% efficient and operate on natural gas. Units constructed of 18 gauge galvanized steel with standard lifting lugs for easy installation. Cabinet is lined with 1-inch foil faced insulation, includes a motorized intake damper and weatherhood with washable aluminum air filters.

  • Natural gas burners are 92% efficient
  • Burners are capable of 25:1 turndown ratio
  • Heating capacities of up to 800,000 BtuH
GREEN Product GREEN Product
  • 92% Efficient Gas Burner
  • Increased Ventilation
  • Meets Minimum & Optimize Energy Performance
  • Meets Minimum IAQ Performance
  • Outdoor Air Delivery Monitoring
  • Thermal Comfort Design
Item
ABCD
136 1/4 in88 1/16 in39 in49 1/2 in
EF
64 1/16 in2 15/16 in

Performance Characteristics

(No Fan Curve Available.)

Construction Features

Impeller TypeBackward Inclined Centrifugal
Impeller MaterialSteel
Drive Package DescriptionDrives Assembled
Warranty Length1 Year

Motor Information

Motor Item Number53J909
Voltage208-230/460
Hertz (Cycle)60 Hz
Motor Phase3
Motor EnclosureOpen Drip Proof
RPM1,725 rpm
Full Load Amps

Other Components

ComponentDescriptionItem #
Fan DescriptionMake-up Air
BeltBX84 (QTY: 1)
Driver Sheave1VP56X1-1/83X946
Driven SheaveBK120x1

Air & Sound Performance

Motor HPMax BHPFan RPMCFM @0.250'' SP0.375'' SP0.500'' SP0.625'' SP0.750'' SP0.875'' SP
53.08727CFM691063305710
Sones18.5
53.37742CFM7200667060605230
Sones19.9
53.66757CFM7470698064005760
Sones21.0
53.98772CFM7750730067506160
Sones22.2
54.29787CFM80157580707065005800
Sones23.3
54.63802CFM82707850740068506280
Sones24.5
54.98817CFM853081207700718066205900
Sones25.5
55.35832CFM879084008070750069706400
Sones26.8

Agency Compliance

ETL
Agency Compliance