Dyna-Glo BFSS30NGT-4N 30K Blue Flame
#8 in Vent-freeFull review
A thermostat blue flame heater for a large natural gas room or garage. It works well, but the Mr. Heater dual fuel 30K has a longer warranty for little more.
Amazon $253.51$253.51
3.3/5
The cheapest way here to heat a large propane room or garage with a thermostat. Pick it when price matters more than warranty length.
- 28,000 BTU/hrOutput
- PropaneFuel
- Blue flameHeat
- YesThermostat
Check price at Amazon$188.99
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Thermostat control and 28,000 BTU for well under $200
- Works with no power, so it heats through outages
- Floor feet and wall mount included
Cons
- Rated 28,000 BTU, a little under the 30,000 BTU heaters it competes with
- Propane only
- Only a one year parts warranty
The ProCom Blue Flame Thermostat family
Every ProCom Blue Flame Thermostat model we rank, smallest first. Ratings compare each against its own venting.
| Model | Output | Rating | Price |
|---|---|---|---|
| ProCom MN100TBA-B 10K Blue Flame | 10,000 BTU/hr | 2.3/5 | $129.59 |
| ProCom ML200TBA-B 20K Blue Flame | 20,000 BTU/hr | 2.9/5 | $170.99 |
| ProCom ML300TBA-B 28K Blue Flame (this one) | 28,000 BTU/hr | 3.3/5 | $188.99 |
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 | ML300TBA-B |
|---|---|
| Heat | |
| Venting | Vent-free |
| Heat type | Blue flame |
| Maximum input | 28,000 BTU/hr |
| Minimum input | 14,000 BTU/hr |
| Heating area claim | 1,400 sq ft |
| Fuel and controls | |
| Fuel | Propane |
| Thermostat | Yes |
| Blower | No |
| Ignition | Push button |
| Needs an outlet | No |
| Oxygen depletion sensor | Yes |
| Build | |
| Weight | 28 lb |
| Warranty | 1 year |
Alternatives in this venting
ProCom MN300TPA-B 30K Infrared
#9 in Vent-freeFull review
A low cost thermostat infrared heater for a large natural gas room, workshop or garage. Radiant heat suits spaces where warm air leaks away.
Amazon $208.12$208.12
Dyna-Glo IR30PMDG-1 30K Infrared
#11 in Vent-freeFull review
A propane infrared heater for a garage, workshop or large drafty room where radiant heat beats warm air. Its wide turn down makes it flexible, but you set the heat by hand.
Amazon $234.05$234.05
Compare
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