Power, not room size, narrows a commercial shortlist first. Your panel rules heaters out before the cubic feet do, so start there and you will save yourself two rounds of picking.

The Harvia Virta Pro 16 is 240V single phase. The Virta Pro 20 and the EOS Mythos S45 both run 208V three phase. The Saunum Air L arrives with a prewired power box and cable whip, though the circuit and the electrician are still yours. The Homecraft Apex spans 10, 12, 15 and 18 kW, which covers most of a light commercial range on one model line.

For a room guests can see, the Mythos S45 is the one. It is 12 or 15 kW behind a 24 piece hand cut Cubius soapstone crown, finished on every side, and only 14.6 inches deep, for rooms of 80 to 142 square feet.

For a room that runs all day, mass is what you want. The full-size HUUM HIVE is built around 528 lb of stones, shipped as sixteen boxes, and covers rooms from 424 to 989 cubic feet. It comes with HUUM’s stainless steel air tunnel, which improves airflow and element life, plus the UKU control and the UKU Extension Box that any HUUM heater at 12 kW or above requires.

Give us the cubic feet, the voltage and phase at the panel, and how many sessions a day the room runs, and we will size it with you on (844) 565-1113.

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    We recommend Harvia Autodose for commercial spaces to ensure only pure water and scents are poured over the rocks. This ensure ideal conditions, safer operation, and longer lasting heating elements.