Mr. Heater 30K Blue Flame Dual Fuel
#1 in Vent-freeFull review
The pick for heating a big room on either fuel with a thermostat and a long warranty. Add the blower kit for high ceilings.
Amazon $265.39$265.39
4.4/5
The vent-free heater to buy when you want a blower and thermostat in the box on propane. It costs more up front but needs no add on fan.
- 30,000 BTU/hrOutput
- PropaneFuel
- Blue flameHeat
- YesThermostat
Check price at Amazon$319.99
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Blower comes installed, so warm air spreads across the room instead of pooling at the ceiling
- Built in thermostat and battery push button ignition
- Still heats in a power outage; only the fan stops
- Five year limited warranty on the maker’s spec sheet
Cons
- Propane only, with no conversion to natural gas
- Highest price among the vent-free heaters here
- Sold on Amazon by a third party seller
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its venting. How we rank explains each one.
Specifications
| Model number | HSSVFBF30LPBT |
|---|---|
| Heat | |
| Venting | Vent-free |
| Heat type | Blue flame |
| Maximum input | 30,000 BTU/hr |
| Heating area claim | 750 sq ft |
| Fuel and controls | |
| Fuel | Propane |
| Thermostat | Yes |
| Blower | Yes |
| Ignition | Electronic (battery) |
| Needs an outlet | No |
| Oxygen depletion sensor | Yes |
| Build | |
| Weight | 30 lb |
| Warranty | 5 years |
Alternatives in this venting
Mr. Heater 30K Radiant Dual Fuel
#2 in Vent-freeFull review
A big radiant heater for a garage, workshop or open room on either fuel. It pairs thermostat control with the longest warranty in this group.
Amazon $265.39$265.39
Mr. Heater 20K Blue Flame Dual Fuel
#4 in Vent-freeFull review
A thermostat blue flame heater for a living room or cabin of up to about 700 sq ft that may switch between propane and natural gas. The long warranty sets it apart.
Amazon $199.99$199.99
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