Typical electricity cost
How much does a Patio Heater cost to run?
Based on typical usage
A Patio Heater typically uses about 1,500 watts, costing around $0.22 per hour at $0.15 per kWh.
At typical use (3 hours per day), that's about $20.25 per month and $81.00 for a typical 4-month outdoor heating season.
Based on
- 1,500 watts
- 3 hours per day
- $0.15 per kWh
- 4-month outdoor heating season
What affects cost most
- Average hours used per day
- Electricity rate in dollars per kWh
- How many active days or months the device runs each season
- Pump size, maintenance, and season length
How it works: Daily cost uses wattage, hours per day, and electricity rate. Monthly uses daily × 30; outdoor heating season uses monthly × 4.
Use the calculator below to estimate cost based on your own wattage, usage time, and electricity rate.
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How Much Electricity Does a Patio Heater Use?
These example monthly costs show how scheduled runtime changes the bill over the active season.
Example monthly costs
-
Light Use 1.8 hours per day$12.15/month
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Typical Use 3 hours per day$20.25/month
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Heavy Use 4.2 hours per day$28.35/month
Get a better estimate and keep costs down
Defaults are a starting point. Real cost changes most when runtime, wattage, and your electricity rate differ from the benchmark assumptions.
What changes cost most
- Average hours used per day
- Electricity rate in dollars per kWh
- How many active days or months the device runs each season
- Pump size, maintenance, and season length
How to get a better estimate and lower cost
- Replace the default electricity rate with the actual rate from your latest power bill.
- Adjust daily runtime to match how long you actually use the equipment.
- Use targeted heating zones instead of heating large open areas.
- Reduce runtime with timers or occupancy controls.
- Pair with wind blocks to improve heating effectiveness.
- Lower heat level during milder conditions.
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