Search  for anything...
Mr. Heater

Mr. Heater MHVFBF20LPT 20,000 BTU Blue Flame Vent Free Propane Heater For Cold Rooms, Additions, Sun Rooms Cabins & Garage - White

    • Based on 2,614 reviews
Condition: New
Checking for product changes
$139.99 Why this price?
Save $20.00 was $159.99

Buy Now, Pay Later

As low as $23.33 / mo
  • – 6-month term
  • – No impact on credit
  • – 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, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. 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

30-day refund/replacement

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: In Stock.
Fulfilled by The Sportsman's Guide
Arrives Saturday, Apr 19
Order within 16 hours and 23 minutes
Available payment plans shown during checkout

Recently Viewed

Material Type: Propane


Features

  • POWERFUL PROPANE WALL HEATER: Provides up to 20,000 BTUs of heat, effectively warming rooms and cabins up to 700 sq. ft. & designed for reliable performance even at elevations up to 4,500 ft. for consistent warmth in cold conditions
  • EASY CONTROL & IGNITION: This blue flame heater features a thermostat for accurate temperature control and a hassle-free startup with its battery-powered electronic ignition (battery included) & consumes fuel at a rate of .926 lbs per hour
  • SAFE HEAT: One of the most important features of this propane indoor heater is the factory standard automatic low oxygen shut-off system (Oxygen Depletion Sensor-ODS) that ensures safe operation whenever in use
  • CONVECTION HEAT: This ventless propane heater features a blue flame burner that uses convection heating, which heats the air, not objects, and disperses that heated air through the area, warming the room from top down, similar to a fireplace
  • VERSATILE MOUNTING: Other wall heaters for indoor use are required to be fixed to a wall where ours is designed for mounted or free-standing use, with legs & mounting hardware included for simple installation to meet the needs of your space

Description

The Mr Heater Blue Flame 20000 BTU Heater with thermostat controlled temperature is the ultimate solution for reliable, supplemental heating for your indoor space, even during the coldest days. Designed to efficiently heat spaces up to 700 square feet, this propane heater uses blue flame burner technology to provide consistent convection heat that circulates warm air evenly throughout the room. Whether you’re trying to warm up your sunroom, cabin, or addition, this unit is perfect for keeping you cozy and comfortable. With the battery-powered electronic ignition, getting the heater started is as simple as pressing a button. Installation is easy and versatile, as this heater can either be mounted on the wall or placed on the floor using the included legs and mounting hardware. This flexibility makes it a great fit for a wide range of spaces and setups. For even greater comfort, an optional Blower Fan Kit (sold separately) is available for 20,000 BTU units and higher, helping to enhance the distribution of heat. For every Mr Heater propane heater safety is a top priority, so this design features an Oxygen Depletion Sensor (ODS) that automatically shuts off the unit if the oxygen levels in the room drop to unsafe levels, providing peace of mind during use. This CSA- certified heater is ideal for cold rooms, additions, and other areas, but is not recommended for use in bathrooms, bedrooms, or recreational vehicles. Additionally, it should not be operated at altitudes over 4,500 feet, as this could cause the ODS to shut down the unit. Whether you need supplemental heat or a primary heat source for smaller spaces, the Mr. Heater Propane Heater offers a reliable, safe, and efficient solution for any indoor area. Note: This product is restricted in Canada and California.

Brand: Mr. Heater


Special Feature: Low-Oxygen Safety Shutoff


Color: Multicolor


Form Factor: Cabinet


Indoor/Outdoor Usage: Indoor


Brand: Mr. Heater


Special Feature: Low-Oxygen Safety Shutoff


Color: Multicolor


Form Factor: Cabinet


Indoor/Outdoor Usage: Indoor


Product Dimensions: 20.25"D x 9.25"W x 25.25"H


Recommended Uses For Product: Home


Mounting Type: Wall Mount


Room Type: Living Room, Bedroom


Heating Coverage: 500 sq ft


Burner type: Radiant


Fuel Type: Liquid Propane


UPC: 089301000773


Global Trade Identification Number: 73


Item Weight: 24.8 pounds


Manufacturer: Mr. Heater Corporation


Item model number: F299720


Is Discontinued By Manufacturer: No


Date First Available: April 1, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Apr 19

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.

Similar Products

Top Amazon Reviews

    • Awesome In Every Way. Update...
Material Type: Propane
I purchased a 30,000 BTU heater a few months back and love it. For the master bedroom & bath I've been using electric heaters. After still freezing in the back half of the house and a $600 power bill, I decided to buy another propane heater. In such a small area I certainly didn't need 20,000 BTUs but this was the smallest I could find with an actual thermostat. The thermostat works great! The range is marked 0-5 not in degrees. But they are very accurate. #2 setting keeps it at a toasty 74 degrees when it's below freezing outside. Being so large, it only runs for less than a minute cycling on & off as needed. I expect it will pay for itself the first month. It can set on the floor with the included feet or be wall mounted with the included bracket. It's a bit modern looking for my taste but the blue flame and performance more than makes up for that minor flaw. To connect it to a gas supply, you will need some brass fittings / hardware, a hose & regulator unless connected to your main supply. Every component is available on Amazon or your local hardware store. Don't forget teflon tape for the threaded pipe joints! Maintenance is quick & easy. Basically cleaning the pilot orfice of dust that may accumulate. The manual says every three months. My house apparently lacks any insulation and resembles a wind tunnel. (I bought it over the phone, without seeing it first lol. Initially I didn't care, I bought it for the land & planned on building a new house anyway. I just never imagined it could be this bad.) I'm in awe these two heaters can keep up but they do, and quite well! They are comparatively economical to operate too. Hopefully our new house will be finished before next winter. And yes, I'm transferring these heaters to the new place! If it turns out they aren't needed, I can put them in the stable to keep my horses warm. I would absolutely buy them again and highly recommend them! To clarify, the larger heater (30,000 BTU) in the living room would heat the entire house but the back is generally closed off. That's why I needed the smaller 20,000 BTU unit. FYI the thermostat in the living room is set about 2 1/4 to maintain 74 degrees. Obviously you can adjust the temperature to your liking. I prefer HOT. Shipping was fast and very well packed. UPS proof. After using them I suspect they would perform equally well in a workshop / garage where open flame wouldn't be an issue. Buy this, you will be VERY happy with it. Update... After complete satisfaction with the first two, I just bought a third for my workshop. This time Amazon suggested a hose & regulator kit which I gladly bought with it. It's somewhat of a pain in the rump to find the right hose & fittings each time. This made it really easy. Everything was included but a tank (which I already have). I think it's actually less expensive in kit form as well. I might buy #4 for the barn to spoil my horses. 😉 ... show more
Reviewed in the United States on January 11, 2023 by Jeff P
    • Fast shipment, great condition
Material Type: Natural Gas
I hate to see reviews where the reviewer says that they haven't used it yet, but I hate to let this one go too long without my impressions of it so far. My husband wanted this for an old camper we got for my son to use in the backyard as a temporary office as he needed a quieter environment than a home with 4 small dogs was giving him. It was the beginning of winter and living in a mountain area we knew it would be getting cold soon and the propane heater in the camper was very 'iffy'. Once we got it home and cleaned up, the heater actually worked pretty well. So, we are going to use it in a wood working shop my hubby recently got and is in the process of insulating and wiring. (It's nice to have an electrician in the family!) He is also going to wire the camper better and take the power from the house out to it, so we may use an electric heater when we reach that stage. However, our brother-in-law had one of these in his house and it kept it very comfortable. This one if very similar and seems to be well built with quality materials so we don't anticipate any issues with it once he gets everything ready to go. We also read all the other reviews before getting it and it really does look like it will live up to its good rating. Since it may not be installed until early Spring, I wanted to give our impressions of it thus far. I will definitely update if we have any problems in the future. ... show more
Reviewed in the United States on February 8, 2025 by Puppy lover
    • heats well, east set up.
Material Type: Propane
Works great, easy to set up and use ,heats well and a great value. very pleased.
Reviewed in the United States on February 20, 2025 by A. Clark
    • Good heater
Material Type: Propane
Works better with a good blower fan to spread the good amount of heat it produces
Reviewed in the United States on March 2, 2025 by Aj
    • Does exactly what I need it to do
Material Type: Propane
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

Can't find a product?

Find it on Amazon first, then paste the link below.