Mr. Heater Vent Free Radiant Dual Fuel Heater 20000 BTU
- 20,000 BTU radiant heat output
- Propane or natural gas, manual selector switch
- Up to 700 sq ft per description, 667 in specs
- Vent free, dual valves and dual oxygen depletion sensors
- Wall mount brackets included, floor feet not included
- Electronic push button ignition
- 120 F max temperature setting
- 1 year limited warranty
Updated 24 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A vent free wall heater that runs on propane or natural gas and warms people and objects with radiant tiles. Floor feet are not in the box, so plan on wall mounting unless you buy them.
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ASIN: B08DRW951QModel: MHVFDF20RTTCategory: Propane Space Heaters
Overview
Radiant burner tiles warm people and objects first, which in turn warm the room, and the burner runs on either propane or natural gas. A manual selector switch sets the fuel, a push button lights it, and the included brackets fix it to a wall.
Dual fuel flexibility is why to buy it: one heater works on a propane tank or a natural gas line, set by a selector switch.
Who it's for
Homeowners adding backup or zone heat to a living room, home office or garage, with either fuel available. Renters who cannot mount to walls or run a gas supply, and anyone wanting plug in electric heat, should look elsewhere.
Pros and cons
- Runs on propane or natural gas
- Electronic push button ignition
- Dual oxygen depletion sensors
- Wall brackets included
- Floor feet sold separately
- Indoor use only
- Needs a propane or natural gas supply
- Coverage figures differ across the listing
Performance notes
Heat delivery depends on the radiant burner tiles, which warm surfaces and people facing them before the room air catches up, so aiming it at the seating area matters. Room size and air supply also govern results, since the heater is vent free and relies on dual valves and dual oxygen depletion sensors as part of its safety design.
Specifications
| Brand | Mr. Heater |
|---|---|
| Model | MHVFDF20RTT |
| Dimensions & fit | |
| Item weight | 22.3 pounds |
| Item Dimensions D x W x H | 11.4 × 20.3 × 25.5 inches |
| Capacity & performance | |
| Heating Method | Radiant |
| Heating Element | Radiant |
| Number of Speeds | 1 |
| Max Temperature Setting | 120 °F |
| Power & efficiency | |
| Fuel Type | Propane, Natural Gas |
| Construction & materials | |
| Color | White |
| Compatibility & installation | |
| Mounting Type | Wall Mount |
| Included components | |
| Included Components | Wall mounting hardware |
| Warranty & support | |
| Warranty Description | 1 year |
| Other details | |
| Indoor Outdoor Usage | Indoor |
| Room Type | Home Office, Living Room |
| Ignition type | Push button electronic ignition |
| Recommended Uses For Product | Garage, Home |
| Special Features | Adjustable Temperature |
Frequently asked questions
Does the Mr. Heater MHVFDF20RTT come with floor feet?
No. Wall mounting brackets are included, but the description says feet for floor mounting are not.
Can the Mr. Heater dual fuel vent free heater be used outdoors?
No. It is listed for indoor use, with a garage, home office and living room among the suggested spaces.
How do you switch the Mr. Heater MHVFDF20RTT between propane and natural gas?
A manual selector switch sets the fuel to match the installation. The listing gives no conversion steps, so follow the installation manual or use a qualified installer.