Electric Sauna Heater - Room Sizing

Step-1# Calculate your room volume

The sauna heater, being the heart of the sauna, must be the correct wattage to be efficient and to meet electrical codes. To determine the heater you require, calculate the room size and use the chart below for reference.

Example: a sauna room measuring 5 ft X 6 ft X 7 ft high, equals 210 cubic feet. This room will require a model SE-5 heater.

Step-2# Pick the matching heater and control

Sauna Heater Size Selection
Heater modelMinimum ceiling heightCubic Room sizeWattsVoltsPhaseCircuit BreakerWire Size-90 degree copper
SE 3 78 inches 50-100 ft 3,000 240 1 20 12
SE 4 78 inches 100-150 ft 4,000 240 1 30 10
SE 5 78 inches 150-250 ft 5,000 240 1 30 10
SE 6 78 inches 250-300 ft 6,000 240 1 40 8
SE 7.5 78inches 300-370 ft 7,500 240 1 40 8
SE 9.0 78inches 360-450 ft 9,000 240 1 50 8
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