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Product Summary

This Mr. Heater Big Maxx™ Natural Gas Garage/Workshop Unit Heater is quiet and vented for easily heating a 2- to 3-car garage. The low-profile design requires only 1in. clearance from the ceiling (two angle brackets are included). Big Maxx features power exhaust for vertical or horizontal venting. Use right or left side piping, electrical and flue connections by simply rotating 180°. Big Maxx includes an aluminum tubular heat exchanger for maximum efficiency and longer life. Handy extras include spark ignition with a self-diagnostic control module and easy outside access to the thermostat and AC terminals. Works with Thermostat sold separately, Item# 173,641. Note: Installation requires an 8ft. clearance from the floor and will not pass code with less than 8ft.

What's Included

    (1) Mr. Heater Big Maxx Natural Gas Garage/Workshop Unit Heater, Model# MHU80NG, (1) LP conversion kit

Features + Benefits

  • Power exhaust allows for vertical or horizontal venting
  • Designed for right or left side piping, electrical and flue connections by simply rotating 180°
  • Tubular heat exchanger and spark ignition
  • 6 Amp draw
  • Horizontal venting kit, Item# 29794, and vertical venting kit sold separately
  • Thermostat sold separately -- Item# 173641
  • Includes LP conversion kit
  • Note: Due to BTU loss through exhaust gases, heater runs at approx. 81% operating efficiency
  • Note: Installation requires an 8ft. clearance from the floor and will not pass code with less than 8ft.
  • Note: Check local codes and ordinances for further approved installation and usage

Key Specs

AttributeSpecification

item#

27465

Brand

Mr. Heater

Manufacturer's Warranty

3 year limited warranty

Ship Weight

88.0 LB

Heat Output

80,000 Btu/hour

Heat Type

Forced Air

Heating Capability

2,000 ft²
AttributeSpecification

Blower Included

Yes

Blower CFM

950 cfm

Thermostat Included

No

Volts

120

Product Weight

88.0000 lb

Dimensions L x W x H (in.)

30.31 x 22.04 x 27.55 in

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Warranty

Manufacturer's Warranty

3 year limited warranty

Extend Your Warranty Coverage with a Northern Protection Plan (NPP)

Repair Plan — 1 Year

A Northern Protection Plan is available after adding the product to your shopping cart.