Mr. Heater Hot Stuff Series Ventless Gas Heater MH40LP/MH40NG

$764.32

THIS ITEM IS CURRENTLY ON BACKORDER AND IS EXPECTED TO BE AVAILABLE APPROXIMATELY AUGUST 2026

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Model MH40NG Natural Gas or MH40LP Liquid Propane

Mr. Heater High Intensity Radiant Gas heaters require no electricity and are great for use in workshops, garages and other applications. Heater is available in either natural gas or liquid propane and is a ventless heater. With 99.9% efficiency this heater series transfers almost all of the fuel it burns directly into clean safe radiant heat. Utilizing a unique power pile thermocouple to control the valve, there is no electricity required. Just hook-up the included millivolt thermostat with the appropriate wire (wire is not included), mount the heater to the wall and then make the gas connection.

What Is Included:

  • Heater
  • Mounting Hardware
  • Adjustable thermostat for individually controlled warmth

Features:

  • Heats up to 1,000 sq feet
  • 40,000 BTU
  • Available in Natural Gas
  • Available in Liquid Propane (40# propane tank capacity – not included)
  • For use in buildings with 12 to 15 ft ceilings
  • Efficient infrared heat-directly heats people and objects which in turn heats surrounding air to desired temperature
  • No electricity required
  • Heats even during power outages
  • All necessary brackets & hardware is included
  • Easy to operate and install.
  • Quiet, clean and odor free operation
  • No moving parts to service
  • Quiet, clean and odor-free operation
  • CSA Certified

Specifications:

  • Heater length 35.5, heater width 12.5
  • 1 year limited warranty
  • Heat type: Radiant
  • Thermostat-optional: Yes
  • Ignition: Match lit
  • Indoor-safe: Yes
  • For use in: Garages, workshops, loading docks, warehouses, factory production and assembly areas, animal pens and stalls, automotive repair shops, sporting arenas, public entranceways
  • Disclaimer: Do not use in sleeping quarters, mobile homes, or recreational vehicles. For elevations above 2,000ft ratings should be reduced at the rate of 4% for each 1,000ft above sea level

Additional information

BTU

40,000

Fuel Type

Natural Gas, Propane

Let's get in touch!

Do you have any questions?

Hello!
I'm Mike,

I have experience dating back to 1995 installing patio heaters in California and would be happy to answer any of your questions. Right now, we're offering free shipping for any orders over $100 and free consultations.

Give me a call on (760) 779-1352 or send me an email.