Heating and Cooling Heaters

Mr. Heater

MR. HEATER MHU400NGPALP BIG MAXX UNIT HEATER

$2,980.40

SKU: M023 F263066

In Stock
In Stock
Ships by Jun 10
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Mr. Heater® 400,000 Power Vented Unit Heater provides significant heat for large spaces such as factories or warehouses, covering up to 13,400 sq ft. It operates at 82% thermal efficiency. A built-in electric high-velocity fan pulls cool air into the heater, across a heat exchanger, and then forces warm air into the surrounding areas. The power vent system pumps exhaust out of the building through a single vent pipe, simplifying installation. It is designed with an aluminized steel heat exchanger and ships equipped for natural gas, with an LP conversion kit sold separately. Air louvers with three locking positions allow control over heat direction. It can be easily mounted to the ceiling using 3/8 inch - 16 tpi threaded rods (sold separately).

Fitment

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Specifications

BrandMr. Heater
Part NumberM023 F263066

Videos

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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