Sauna & Cold Plunge Calculators
Five engineering calculators, sizing, electrical, chiller, cost and layout. Every result is a shareable URL.
Heater size
What kW your room needs, with glass and cold-surface corrections.Electrical circuit
Breaker, copper wire gauge and voltage drop by run length.Cold plunge chiller
BTU/hr and HP for your tub, plus running cost.Running cost
Monthly $ to run a sauna at your electricity rate.Room planner
Bench heights, door width and ventilation layout.
What kW your room needs, with glass and cold-surface corrections.Electrical circuit
Breaker, copper wire gauge and voltage drop by run length.Cold plunge chiller
BTU/hr and HP for your tub, plus running cost.Running cost
Monthly $ to run a sauna at your electricity rate.Room planner
Bench heights, door width and ventilation layout.