Mr Heater® Big Maxx® 125,000 BTU Garage Heater

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.

Requires only 1″ clearance from ceiling with 2 included angle brackets
Power exhaust allows for vertical or horizontal venting
Designed for right or left side piping, electrical and flue connections by simply rotating 180°
Aluminum tubular heat exchanger for maximum efficiency and longer life
Spark ignition with self-diagnostic control module

• 125,000 BTU per hour
• For use with natural gas
• Heats up to 4,167 sq. ft.
• Spark ignition features self-diagnostic
• Includes 2 angle brackets for ceiling mount
• Low profile design – can be installed in low-ceiling buildings
• Heater accepts WiFi thermostats
• Minimum 8ft clearance from floor to base of heater required
• 1/2″ gas connection
• Category 1 vertical, category 3 horizontal venting
• Easy outside access to thermostat and AC terminals
• Requires 115 Volt AC power
• 4″ flue for both horizontal and vertical venting venting kit required (not included)
• Thermostat sold separately