Commercial Sauna Heaters
Start with the panel: 208V three-phase or 240V single-phase decides which heaters are on the list. Then match the room’s cubic feet, and favor stone mass, which holds heat between sessions. Harvia’s Club and Virta Pro, the HUUM HIVE, the EOS Mythos S45, Homecraft’s Apex and the Saunum Air L are here. For a room that cannot go down, many operators run two heaters and keep spare elements on the shelf. Ask a product question with the room size, the voltage and phase, and the hours it runs each day.
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Saunum Air L Stainless Climate-Equalizing Sauna Heater
Price range: $3,895.00 through $4,195.00The Saunum Air L Stainless is the open-basket version of Saunum’s largest heater. Its fan draws the hot air that collects at the ceiling back down and mixes it with cooler, fresher air off the floor, so the heat is more even from head to toe. The open stainless basket holds 190 lb of stones and gives off more direct radiant heat than the black closed basket.
Three sizes cover rooms from 283 to 812 cu. ft. The price is for the heater with Himalayan salt spheres; the AirIQ Wi-Fi control and stones are required and sold separately. UL-listed, 240 V single phase.
Saunum AIR L – Professional Sauna Heater with Air Equalization and Himalayan Salt Spheres | 10KW 13KW 15KW
Price range: $3,895.00 through $4,195.00Saunum’s best performing sauna heater is here, with a lower rock basket, better clearances, and an overall more commercial grade heater than ever. Buy a Saunum Air L Climate Equalizing sauna heater on Sauna Marketplace and get the latest version with a prewired power box and cable whip making connections easy. You’ll also receive an external temperature sensor to give you more control over where it’s measured.
If you’re not familiar with Saunum heaters, be ready to experience the most versatile, enjoyable sauna experience on the planet. Saunum doesn’t just heat the space, but redistributes air to give more even temperatures to whoever is lucky enough to be on the bench. The massive stone capacity along with Saunum Air Blending technology provide a soft, long-lasting steam evenly distributed throughout your sauna.
With Saunum, you’ll exit the sauna feeling rejuvenated, not depleted. Whether you were born in the sauna or have never enjoyed them, there’s a Saunum preset that will win you over, we’re sure of it.
Saunum Air is UL-approved for North America and ships daily out of greater Chicago. The Air L price is for the heater, which comes with Himalayan salt spheres, the external temperature sensor, US-based support and the latest integrated power box for simpler installation. Add the required AirIQ Wi-Fi control and Saunum stones as options when you order.
HUUM HIVE Electric Sauna Heater with Included Air Tunnel | 12, 15 & 18 kW
Price range: $2,848.00 through $3,356.00Full-size HUUM HIVE is built around 528 lb of stones for large residential and commercial-style sauna rooms from 424 to 989 cubic feet. The current 2025+ U.S. heater includes HUUM’s stainless-steel air tunnel to improve airflow, support the elements, and help them last longer. UKU control, UKU Extension Box, and sixteen 33-lb boxes of 2 to 4-inch stones are required and sold separately.
Harvia Club Series
Price range: $2,023.00 through $2,286.00The Harvia Club series represents a line of premium electric sauna heaters, offering a range of power ratings to suit various sauna room sizes. These heaters embody the traditional Finnish sauna experience, combining modern craftsmanship with the age-old sauna bathing tradition. Exceptionally engineered for reliability, safety, and efficiency, the Club series heaters are ideal for homes, health clubs, hotels, and spas. With a high stone capacity and the need for separate Xenio control units, these heaters ensure a consistent and pleasurable heat distribution. Given their robustness and versatility, the Harvia Club series stands as an excellent choice for both residential and commercial settings.
Harvia Virta Pro 16 | 240V Single‑Phase Commercial Sauna Heater
$3,736.00This is our go-to recommendation for both commercial saunas and large home saunas where reliability, safety, and everyday performance are essential. With a sleek black outer shell, easy maintenance access, and extended Harvia warranty this heater will keep your people coming back for more. Have an even larger commercial sauna? Double or triple up on this heater for any space. Like all Harvia Virta or Club models, maintenance and serviceability are unrivaled.
Homecraft Apex Commercial-Grade Electric Sauna Heater | 10, 12, 15 and 18 kW
Price range: $2,050.00 through $3,100.00A commercial room that goes cold on a Saturday morning costs more than the heater ever did. Apex is the Homecraft built for rooms that open early and run late: an 18-inch stainless tower carrying 310 to 325 lbs of igneous rock, elements set back inside a protected air chamber instead of sitting out in the rock, and four outputs covering rooms from 400 to 1,150 cubic feet. Built in Surrey, British Columbia, CSA and UL certified. We sell the contactor box, the touchpad and the rock alongside it, so nothing lands on your dock half finished.
Harvia Virta Pro 20 | 208v 3-Phase Commercial Sauna Heater
$4,943.00If you run a public sauna and “down for maintenance” is not an option, this is the heater we trust. The Virta Pro 20 has the right mix of power, stone mass, and serviceability for busy gyms, hotels, apartments, and studios. It’s the model we see running day in, day out with minimal fuss.
Harvia’s most powerful and appealing electric sauna heater, the Virta Pro 20 is our go-to commercial sauna heater when 208v 3ph power is required. It’s as close to one-size-fits all as we’ve seen in the industry. Ideal for saunas from 354 cubic feet all the way up to 1130 cubic feet.
We have customers running this heater 24 hours/day for years in gyms, spas, hotels, and pro training centers. Maintenance, performance, and longevity are the design principles to be appreciated even more over time. When downtime isn’t acceptable, there’s nothing better than a Virta.
EOS Mythos S45 Design Sauna Heater | 12 / 15 kW
$10,441.00The statement heater for big rooms. The EOS Mythos S45 scales the iF Design Award-winning Mythos design to 12 or 15 kW at 208V three-phase: a 99 lb published stone load, a 24-piece hand-cut Cubius soapstone crown, and a finished-on-every-side body still only 14.6 inches deep. Covers EOS room ranges from 80 to 142 sq ft, private or commercial. Requires one matching 15 kW EOS USA control system (sold separately, select below); no power extension needed. Ships freight via EOS’s official US distribution; lead time confirmed with your order.
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.
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