Outdoor heat lamp Electricity Cost in Montana — $2.47/month (2026)
Montana monthly
$2.47
U.S. average monthly
$3.45
Difference
-$0.98
← Outdoor heat lamp (all states) · Montana electricity rate
Quick rate
Daily cost
$0.08
Monthly cost
$2.47
+$0.00 vs typical
Yearly cost
$30.04
kWh / month
19.2 kWh
Local monthly estimate: $2.47 · U.S. average equivalent: $3.45
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ad-after-calculator Quick answer
Running a typical outdoor heat lamp in Montana costs about $0.08/day or $2.47/month at roughly $0.129/kWh, assuming 8 hours of use per day at 80 W. The U.S. average rate is about $0.180/kWh, so Montana is roughly 28% lower than average for this estimate.
vs U.S. average
Local rate (Montana)
$0.129/kWh
Monthly estimate: $2.47
U.S. average rate
$0.180/kWh
Monthly estimate: $3.45
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ad-after-state-table FAQ
- Most outdoor heat lamp units fall between 20 W and 200 W, with 80 W as a typical value for estimates.
- Our calculator uses 80 W as the typical wattage, within a reported range of 20–200 W.
- At 8 hours/day and 80 W, the estimate is about 0.64 kWh per day.
- Using 8 hours/day, the estimate is about 19.2 kWh per month.
- Per hour, outdoor heat lamp uses about 0.080 kWh (at 80 W).
- At typical use (80 W and 8 hours/day), the estimate is about $0.08/day at roughly $0.129/kWh.
- At typical use (80 W and 8 hours/day), the estimate is about $2.47/month at roughly $0.129/kWh.
- Running for one hour at 80 W costs about $0.010 per hour (using the Montana rate of about $0.129/kWh).
- For typical use, the calculator estimates about $2.47/month for outdoor heat lamp in Montana.
- At the typical Montana residential rate, the estimate is about 19.2 kWh per month, which corresponds to roughly $2.47/month for outdoor heat lamp.
- Compared to the U.S. average, Montana is about 28% lower for this estimate. Monthly cost is about $2.47 in Montana vs $3.45 at the national average.
- Start with practical steps from our tips list (e.g., Seal air leaks and improve insulation to reduce run-time.). Smaller changes reduce kWh usage, which reduces the bill at your local rate.
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Est. monthly at Montana rate ($0.129/kWh)