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Plan with numbers, not vibes.
Two calculators answer the two questions every buyer asks: what will it cost to run, and which heater does my room need. Both free, both instant, both grounded in the same specifications our consultants quote from.
What a session actually costs to run
Sauna cost calculator
Heater wattage, session length, and your electricity tariff in — cost per session and per month out. The number that settles the running-cost conversation before it starts.
Open the calculator →Which heater your room actually needs
Sauna heater size calculator
Room dimensions and surfaces in — recommended kilowatt rating out, with allowances for glass and uninsulated walls. The one spec that outranks every other on the heater page.
Open the calculator →