Mr. Heater MHVFBF20LPT 20,000 BTU Blue Flame Vent Free Propane Heater - White
When the chill sets in, the Mr. Heater Blue Flame 20,000 BTU Heater has your back—delivering steady, even warmth that feels just right. Thanks to its blue flame burner technology, it's like having a cozy campfire indoors, minus the smoke and the need for marshmallows.
Setting it up? Piece of cake. You can hang it on the wall or pop it on the floor with the legs that come included. And with the battery-powered electronic ignition, getting it started is as easy as pressing a button (no matches required).
Safety isn't an afterthought here. The heater's got an Oxygen Depletion Sensor (ODS) that'll shut things down if the air gets too thin—because breathing is kind of important. Just remember, it's a no-go for bathrooms, bedrooms, or RVs (sorry, road trippers).
Whether it's a drafty garage, a sunroom that's seen better days, or any space that's stubbornly cold, this heater's up for the challenge. Heads up though: our friends in Canada and California might need to sit this one out due to local rules.
General specs
- Brand: Mr. Heater
- Model: F299720
- Seller: Amazon
- ID: B01DPZ5B3M
- Special Feature: Low-Oxygen Safety Shutoff
- Form Factor: Cabinet
- Indoor/Outdoor Usage: Indoor
- Product Dimensions: 20.25"D x 9.25"W x 25.25"H
- Recommended Uses: Home
- Mounting Type: Wall Mount
- Room Type: Living Room, Bedroom
- Heating Coverage: 500 sq ft
- Burner Type: Radiant
- Fuel Type: Liquid Propane
- First listed by seller: 3/24/25
If you are interested in more details, you can find full information on the seller's page.
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Price History for seller Amazon
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| Brand | Mr. Heater | Mr. Heater | Mr. Heater | Mr. Heater | Mr. Heater | Heat Hog |
| Model | F299720 | F299731 | F215100 MH4B | F232000 | F232050 | HH-09SLN-A |
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| Price | $189.99 | $116.44 | $72.79 | $89.00 | $79.00 | $103.52 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | Sep 1, 2025 | Sep 1, 2025 | Dec 6, 2025 | Dec 6, 2025 | Dec 6, 2025 | Dec 6, 2025 |
| Special Feature | Low-Oxygen Safety Shutoff | Low oxygen safety shut-off system | Low-oxygen safety shut-off system | Portable, Bladeless, Tip-Over Protection | Portable, Lightweight, Adjustable Tilt Head | |
| Form Factor | Cabinet | Pedestal | Pedestal | Portable Heater | Pedestal | |
| Indoor/Outdoor Usage | Indoor | Indoor | Indoor | |||
| Product Dimensions | 20.25"D x 9.25"W x 25.25"H | 30"D x 13"W x 28"H | 7.7"D x 13.4"W x 15"H | 13.4"D x 15"W x 8.3"H | 11.4"D x 12.4"W x 16"H | |
| Mounting Type | Wall Mount | Wall Mount | Floor Mount | Floor Mount | Floor Mount | |
| Room Type | Living Room, Bedroom | Bedroom | Living Room | Home Office | ||
| Heating Coverage | 500 sq ft | 1000 sq ft | 225 sq ft | 225 sq ft | 225 sq. ft. | |
| Burner Type | Radiant | Radiant | Radiant | Radiant | Radiant | |
| Fuel Type | Liquid Propane | Natural Gas | Propane | Propane | Propane | |
| Recommended Uses For Product | Home | Office, Garage, Outdoor, Desk, Indoor | Outdoor Use | Hunting, Garage, Tailgating, Ice Fishing, Camping | ||
| Item Weight | 26.8 pounds | 9 pounds | 9.5 pounds | |||
| Warranty Description | 1 year limited parts. | 1-Year Limited Warranty | 1-Year Limited warranty | 1-Year Limited Warranty | ||