Big Maxx MHU125NG Natural Gas Garage/Workshop Unit Heater 125,000 BTU
The Big Maxx MHU125NG Natural Gas Garage/Workshop Unit Heater delivers a powerful 125,000 BTU output, designed to quickly and efficiently heat large, uninsulated spaces like garages, pole barns, and workshops using Natural Gas. This unit heater is ceiling-mounted to save floor space and features sealed combustion for safe indoor use. The Big Maxx MHU125NG Natural Gas unit is an ideal, dependable, and durable solution for maintaining consistent working temperatures in large commercial and residential auxiliary buildings, ensuring rapid warm-up times and economical operation.
Description
This Big Maxx Natural Gas Garage/Workshop Unit Heater is designed for residential and commercial use, easily heating a 2- to 3-car garage. Built-in electric high velocity fan pulls cool air into the rear of the heater and over a heat exchanger, forcing hot air into the surrounding area. Item may come in Dark Gray or Tan. Works with Thermostat Item# 173641 (sold separately). Note: Installation requires an 8ft. clearance from the floor and will not pass code with less than 8ft.
What’s Included
- (1) Big Maxx Natural Gas Garage/Workshop Unit Heater
| Item# | 57328 |
| Brand | Mr. Heater |
| Manufacturer’s Warranty | 3 year limited warranty |
| Ship Weight | 122.0 lbs |
| Fuel Type | Natural Gas |
| BTU Output | 125,000 |
| Heating Capability (sq. ft.) | 3,125 |
| Blower Included | Yes |
| Blower CFM | 1,475 |
| Thermostat Included | No |
| Heat Settings | 1 |
| Product Weight | 89.1 lb |
| Dimensions L x W x H (in.) | 25in.W x 26.58in.D x 25.67in.H |







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