Search  for anything...

Mr Heater 20,000 BTU Vent Free Blue Flame Propane Heater

  • Based on 2,722 reviews
Condition: New
Checking for the best price...
$279.95 Why this price?

Buy Now, Pay Later


As low as $46.66 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 4 left in stock, order soon!
Fulfilled by 67 Hardware

Arrives May 11 – May 15
Order within 7 hours and 2 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Material Type: Propane


Features

  • 20,000 BTU/HR
  • Heats up to 700 sq. ft.
  • Battery operated electronic ignition - requires one AAA battery (included)
  • No Electricity Required
  • No venting or chimney required
  • Indoor Safe
  • ODS low oxygen safety shut-off control
  • Blower Fan Kit Sold Separately (F299201)
  • Economical - 99.9% efficient
  • Operates with Liquid Propane

Description

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 with included mounting brackets. Feet for floor mounting are not included. 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.

Brand: Mr. Heater


Special Feature: Low-Oxygen Safety Shutoff


Color: White


Form Factor: Cabinet


Indoor/Outdoor Usage: Indoor


Special Features: Low-Oxygen Safety Shutoff


Form Factor: Cabinet


Indoor Outdoor Usage: Indoor


Power Source: Propane


Heating Method: Convection


Recommended Uses For Product: Home


Mounting Type: Wall Mount


Room Type: Bedroom, Living Room


Heating Coverage: 500 sq ft


Heating Element: Radiant


Heat Output: 20000 British Thermal Units


Fuel Type: Propane


Smart Home Compatibility: Not Smart Home Compatible


Item Dimensions D x W x H: 11.42"D x 20.28"W x 25.51"H


Item Weight: 19.58 Pounds


Brand Name: Mr. Heater


Model Number: F299720


Warranty Description: 1 year limited.


UPC: 089301000773


Global Trade Identification Number: 73


Part Number: F299720


Unit Count: 1.0 Count


Item Type Name: vent free heater


Manufacturer: Enerco Group Inc.


Included Components: Wall mounting hardware included


Color: White


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 11 – May 15

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Does exactly what I need it to do
Style: Heater
Purchased as an emergency heat source. I've owned it for 2-1/2 years and used it 3 times most recently for about 4 days. The first time I used it was for about 24 hours when it was 38 below and my fancy high-efficiency furnace had pressure switch problems and wouldn't run. This 20k btu heater on its highest setting kept ~750 sq feet of my (not very well insulated) home pretty much comfortable but did use about a pound of propane per hour which makes sense because propane is ~21k btu per pound and this is rated to use 20k btu per hour on high. Kept us warm enough and kept the pipes from freezing until I could obtain a pressure switch for the furnace. That use case was exactly what I worried about enough to buy a back up heater. It performed admirably. Last week in temps ranging from 22 degrees at night to 38 degrees during the daytime and 20-40 mph winds sucking the heat out of my place, I ran it for just a bit less than 4 days during a power outage. I never turned it up past the #3 setting and the thermostat switched the heat on and off as expected. After ~4 days, there was still at maybe 8-10 lbs of propane left in the 30lb tank it was hooked to. I think I could have gone at least another full day without having to swap tanks. I use the included feet and don't have it permanently mounted to the wall. It's perfectly stable. I run the regulator hose to a tank outside through a casement window and just run a strip of duct tape to seal the rest of the window. And, while I do have an CO & combustible gas detector in the area where I operate this, I don't actually worry about it. So long as the flame is almost entirely blue and it isn't sputtering, then everything is working right and there's nothing to fret about. When I bought this, I understood that I needed a hose, regulator, and a 90 degree fitting. Many of the negative reviews regard folks not knowing that. I suppose in today's world where we expect instant gratification and hope to put forth zero effort, it's hard to blame them for being upset. It wasn't any sort of problem for me, though. Other complaints seem to be about noises and odor. 1) Noises. I haven't really noticed any noises that are bothersome. There's a tick when the thermostat regulates the gas up/down/on/off, but that's what mechanical thermostats do. No problem for me. 2) Odors. Yes. Burning propane indoors unvented creates a bit of an odor. It's no worse than operating a propane oven/stove. I don't find it to be overwhelmingly offensive, so no problem for me on that point, either. I will say that 2 days in to this latest use, I did choose to open a couple of windows on each side of the house for about 15 minutes once. That served to remove the odor for a while and decrease the humidity a little. ... show more
Reviewed in the United States on May 10, 2024 by six

  • Works well if you can afford to feed it.
Style: Heater
The media could not be loaded. I'm absolutely thrilled with this heater. It is, and can be a literal lifesaver. Bought this to put in a 40ft motorhome for a back up.... Just in case of a power outage..... The afternoon I installed it, temps dropped to 11° below zero and stayed that way for a week. As anticipated, power went out 4 hours after I installed it . I couldn't believe it. This heater ALONE kept my place 70° without a hiccup, in -11° weather and I never got past the minimal setting. (#1 out of 5)! I've had it for 9 days, it works perfectly, thermostat works perfectly, off and on again by itself, without me having to leave my comfort zone. No noise, ( I expected some cracking sounds as the metal expanded and contracted) as it warmed and cooled. Nope, totally quiet. For my money.... It is an incredible value. The design is total simplicity, if it's not operating correctly, the fix can't be too complicated. It got the real test the very first night, and totally exceeded any expectations I had. UPDATE: 11 Days after installation, heater emptied a 100 pound propane tank, ($75 worth). I had high hopes this would be a cost effective alternative to heating with electricity. For me.... It is not. Even though it got me through a week of sub zero weather, including two power outages, and never needing to turn the thermostat past #1, it went through propane like it was water. I was hopeful that a 100 lb tank would last a month. At this rate of consumption, a month of use, on the lowest possible setting, would cost me $220. That, in addition to my electric bill, just doesn't pencil out to be feasible for use as a soul heating appliance. However.... In an emergency, power outage type situation..... It could be a lifesaver. IF............ You have a substantial amount of propane on hand. One's not much good without the other. ... show more
Reviewed in the United States on January 19, 2024 by Skip

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...