SaunaCosts

Sauna running cost in Idaho

Idaho residential electricity runs 13.37 cents per kWh as of August 2026, which is 26 percent below the national average of 18.16 cents. That makes it the 5th cheapest of the 51 states and territories the EIA reports.

What it costs here

Running cost is heater power times session length times your rate. Every figure below uses Idaho's own rate and a 1 hour session.

Heater powerPer sessionPer month at 12 sessionsPer year
3 kW$0.40$4.81$58
4.5 kW$0.60$7.22$87
6 kW$0.80$9.63$116
8 kW$1.07$12.84$154
9 kW$1.20$14.44$173

By how often you use it

A 6 kW sauna in Idaho, by weekly habit:

UsagePer monthPer year
2 sessions a week$6.95$83
3 sessions a week$10.43$125
5 sessions a week$17.38$209

Same arithmetic as the running cost calculator, which takes your exact heater power and session length.

How Idaho compares

A 6 kW sauna run 12 times a month costs $116 a year in Idaho. The same sauna costs $110 in Nevada, the cheapest state at 12.72 cents, and $408 in Hawaii, the most expensive at 47.18 cents. Rates come from the U.S. Energy Information Administration and are refreshed on the schedule described on the methodology page.

Next to Idaho in the ranking: Utah at 13.31 cents and Tennessee at 13.42 cents.

Running cost in every state

Running cost questions

How much does it cost to run a sauna in Idaho?
At 13.37 cents per kWh, a 6 kW sauna costs $0.80 for a 1 hour session, $9.63 a month at 12 sessions, and $116 a year. Smaller and larger heaters scale from there: 3 kW costs $0.40 a session and 9 kW costs $1.20.
Is electricity expensive in Idaho?
Idaho residential electricity is 13.37 cents per kWh, 26 percent below the national average of 18.16 cents. That ranks it 5th of the 51 states and territories the EIA reports, counting from the cheapest.
How does that compare with the cheapest and most expensive states?
The same 6 kW sauna, run 12 times a month, costs $116 a year in Idaho, $110 in Nevada and $408 in Hawaii. The spread between the cheapest and most expensive state is $298 a year on an identical sauna.
Where does this rate come from?
The U.S. Energy Information Administration's residential electricity price series, for August 2026. It is an average across the state, so your own utility's rate and any time of use plan will differ. Sourcing and refresh cadence are described on the methodology page.

Prices and specifications verified November 2, 2026, and re-checked weekly after that. How these numbers are checked.

Free guide: sizing and budgeting a home sauna

A fill-in worksheet covering room sizing math, the electrical checklist, indoor vs outdoor decisions, a full cost worksheet, and ten questions to ask the dealer.