Direct Fired Heaters

Mr. Heater MH125QFAV — Propane Forced-Air Heater

The Mr. Heater MH125QFAV is a portable propane construction heater with variable heat input from 75,000 to 125,000 BTU/h. Its direct-fired fan sends heated combustion air into the work area, with Quiet Burner Technology, automatic spark ignition and a manual gas control. A 10-foot hose and regulator are included. The heater uses an electrical fan, has a high-temperature limit control, and operates without a thermostat or ductwork. The compact body measures 21.25 by 11.75 by 16 inches in the manufacturer’s 2018 manual.

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Estimated equipment rental only. Delivery, taxes and applicable fees quoted separately. Final pricing confirmed with dispatch.

Specifications

Equipment

Manufacturer
Mr. Heater
Model
MH125QFAV

Equipment specifications

Heat input, variable
75,000–125,000 BTU/h
Fuel
Propane only; vapor withdrawal
Heater type
Direct-fired, forced-air construction heater
Electrical supply, 2018 manual
115 V, single-phase, 60 Hz
Electrical input, 2018 manual
2 A / 230 W
Minimum operating voltage
100 V
Propane consumption
3.5–5.8 lb/h
Minimum supply pressure to regulator
20 psi
Maximum supply pressure
Propane bottle pressure
Regulator outlet pressure
20 psi
Ignition
Automatic spark; manual gas valve
High-temperature control
240°F
Included hose length
10 ft; regulator included
Thermostat
Not usable with this model
Length × width × height, 2018 manual
21.25 × 11.75 × 16 in
Weight, current manufacturer specification
21.9 lb
Duct connection
Not for use with ductwork
Ventilation openings, manual
2 sq ft near floor and 2 sq ft near ceiling
Combustible clearance, outlet / top
6 ft / 6 ft
Combustible clearance, sides / floor
2 ft / 0 ft
Application
Temporary heating of buildings under construction, alteration or repair

Equipment Details

Capabilities & Features

  • Variable heat setting
  • Quiet Burner Technology
  • Automatic spark ignition
  • High-temperature limit switch
  • Thermoelectric safety valve
  • 10-ft hose and regulator included
  • Portable carry handle
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