Propane Garage Heater Running Cost
See exactly what a propane garage heater costs per hour, day and month at current US propane prices.
A 30,000 BTU propane garage heater costs roughly $0.97/hour, $3.88/day (4 hrs), and $116/month at the US average propane price of $2.80/gallon.
Calculate Propane Garage Heater Cost
Propane Garage Heater Cost by BTU (US 2024)
| BTU | Cost/Hour | Cost/Day (4 hrs) | Cost/Month |
|---|---|---|---|
| 20,000 BTU | $0.64 | $2.58 | $77 |
| 30,000 BTU | $0.97 | $3.88 | $116 |
| 45,000 BTU | $1.45 | $5.81 | $174 |
| 60,000 BTU | $1.93 | $7.74 | $232 |
Propane $2.80/gal, 85% eff, 4 hrs/day.
Is Propane Heat Worth It for a Garage?
Propane is the best option for detached garages without natural gas lines. At $2.80/gal and 30,000 BTU, expect around $116/month running 4 hours daily — roughly the same as electric but with faster heat-up times. Compare both options with our propane vs electric cost calculator.
Propane prices vary significantly by US region and season. Rural areas often pay $3.00–$4.00/gal in winter. Use the calculator above with your local price for an accurate monthly estimate. For a full breakdown of garage heater types, see the garage heater cost calculator.