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4.3 out of 5 stars. 341 reviews

Mr. Heater Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU

4.3341 Reviews

Item # 136311399

Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
$289.99
or
or
Add a protection plan
What's included
Powersport plans are not available in CA & MD.
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Mr. Heater Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU

4.3341 Reviews

Item # 136311399

Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
Image showing  Liquid Propane Vent-Free Blue Flame Heater, 700 sq. ft., 20,000 BTU
$289.99
or
or
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$49/mo.†  suggested payments with 6 Months Financing or earn $14 in Rewards+ on this purchase.Apply now

Shopping at

Grassland (franklin) TN

1 In Stock

Delivering to

37027

Notice:
This Item cannot be shipped to CA.

Add a protection plan
What's included
Powersport plans are not available in CA & MD.
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This Blue Flame 20,000 BTU Liquid Propane Vent Free heater is the perfect supplemental heating solution even on the coldest days. This heater is conveniently equipped with a thermostat for superior control of the temperature in your space. Also, with a battery powered electronic ignition, starting it is a breeze - battery included. This unit can be permanently mounted to the wall or securely fastened to the floor with included mounting brackets and fasteners. A clean burning blue flame tube burner uses the natural convection of the burn to circulate warm comfortable air. with a factory standard Oxygen Depletion Sensor (ODS), rest assured this heater will provide you with years of comfortable and safe heat.

For additional information on this product, please see the Product Documents section for all downloadable user manuals, installation guides, brochures and warranty statements.

Looking for more information on heaters? Check out our guide on heaters in the product documents section.

  • On-board thermostat for accurate temperature control of the blue flame heater
  • Push button electronic ignition makes it easy to start the liquid propane heater
  • Mounting feet and hardware included for mounting the liquid propane heater on the wall or fastening to the floor
  • Factory installed Low Oxygen Safety System
  • Certified vent free blue flame heater
  • 20,000 BTU output per hour
  • For use with liquid propane
  • Heats up to 700 sq. ft.
  • Clean burning blue flame tube for even convection heat
  • 4500 ft. high altitude restriction
  • 1 year limited warranty
  • Convenient top-mounted comfort control adjustable thermostat
  • Battery operated electronic ignition - requires one AA battery (included)
  • Easy to install - wall mount or free standing (feet kit included)
  • ODS low oxygen safety shut-off control

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Reviews

Rating Snapshot

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237 reviews with 5 stars.
42 reviews with 4 stars.
20 reviews with 3 stars.
12 reviews with 2 stars.
30 reviews with 1 star.

Overall Rating

4.3
116 out of 133 (87%) reviewers recommend this product

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Summary of Reviews
AI-generated from customer reviews, which may include incentivized reviews.
The heater is described as effectively warming up spaces and praised for its great heating performance, ease of use, and efficiency. Customers appreciate its streamlined design and note it is easy to ...
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Most Helpful Favorable Review

Mr Heater

2 years ago
it works and the free fan was a bonus
14 people found this helpful
Show Reviews:

Most Helpful Critical Review

makes no sense; Instructions worthless

4 years ago
Instructions for the unit installation were written by a 2 year old that has no concept of what they are attempting to accomplish. Entire manual is one step away from jibberish (and I am being kind). The unit does not come with ANYTHING to hook it up to the gas line, and who the heck ever heard of a 3/8 inch npt street fitting?? (I never had). Unit says it comes with a triple A battery for the igniter, but it was not in the box. I had to go to my local plumbing supply house to get the fitting as no one in any of the large box stores (One starts with H, the other L) had no employee who understood what a npt fitting was, and then tried to sell me regular Teflon tape for the connections. The counter people at the plumbing supply house had a good laugh over my highlighting sections of the manual for this device....and least they helped me get the right parts and pieces to hook it up. AND do not ask Tractor Supply employees about this unit; I did and was told everything was in the box to hook it up.
8 people found this helpful
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1 to 4 of 341 Reviews .
1 – 4 of 341 Reviews
Reviews 3

Heats well

17 days ago
It works amazingly well.
SweepstakesYes
Grove, Ok.
Review 1

Heated 700 sq ft just as advertised.

a month ago
Very pleased with operation of heater.

Yes, I recommend this product.

Review 1

Not bad

a month ago
They seem to work ok but fair warning,propane throws out a lot of humidity with its water content. Had to get a dehumidifier as my walls and windows were getting wet. Been super cold in Massachusetts and each using a 40lb tank about every 10 days so not too bad. Way cheaper then electric heat.

Yes, I recommend this product.

oregon
Review 1

Love this Heater

2 months ago
Heats a 1000 square foot room easily, Fuel efficient. Quiet,
SweepstakesYes

Yes, I recommend this product.