Harvia Club K12.5G: a 12.5 kW stainless floor heater for saunas from 494 to 742 cubic feet
The Harvia Club K12.5G is the middle size in Harvia’s Club line, a floor standing electric sauna heater rated at 12.5 kW for rooms from 494 to 742 cubic feet, at home or in a club, hotel, or spa. It is built from stainless steel inside and out, with a curved front and a wire basket on top that holds 132 pounds of stones directly against the heating elements for soft, even heat. It measures about 20 inches wide, 17 inches deep, and 27.6 inches tall and weighs 60 pounds before stones. Its layered walls help keep the outside cooler.
You get the heater and its manual. It needs a Harvia Xenio wall control to run, and you add that on the page. Sauna stones are sold separately, so add the 3 boxes it needs on the page. On the page, choose 240 volt single phase for a home or 208 volt three phase for a commercial building. A bucket and ladle set is optional. Smaller sauna? See the Harvia Club K10G sauna heater. For a bigger room, the Harvia Club K15G goes up to 989 cubic feet. The Harvia Club K12.5G ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
FAQ
Is this heater suitable for commercial saunas?
Yes – the K12.5G is built for high-traffic settings like health clubs, hotels, and day spas as well as homes, and it is rated for daily, high-demand use. A 208V three-phase commercial configuration is selectable when ordering. It is part of the Harvia Club series, offered in several power options.
What size sauna room does it heat?
At 12.5kW, it is sized for large sauna rooms from 500 to 750 adjusted cubic feet. If your room measures outside that window, check the installation manual linked on this page for sizing guidance before settling on this output.
What are the electrical requirements?
Two configurations are offered: 240V single-phase, drawing 52.7 amps across two circuits, or 208V three-phase, drawing 34.1 amps. Choose yours in the Voltage & Phase option when ordering – 240V/1PH for home use, 208V/3PH for commercial – and have a licensed electrician complete the installation per the manual and local codes.
Do I need a separate control to run it?
Yes – this heater requires a Harvia Xenio control. The compatible Xenio digital control with WiFi for Club series heaters is offered on this page under Required Sauna Heater Controls, so add it to your order and you will have everything needed to operate the heater.
How many stones does it need, and do they come with it?
It requires a minimum of 132 lbs of sauna stones – three boxes, selected in the Required Stones option when you place your order on this page. Since every natural stone differs in shape and size, Harvia recommends an extra box so you can choose the best stones for fit, form, and function.
Is the outside of the heater safe to be near in a busy sauna?
The heater uses multi-layer construction that keeps its surface temperature cooler for greater safety, and the rocks sit in direct contact with the electric elements to filter harsh heat into even, pleasant warmth. For the required clearances around the unit, follow the installation manual linked on this page.
What certifications and warranty does it have?
It is UL tested and listed as well as ETL certified, and it is designed, engineered, and made in Finland. The listed warranty is 2 years for consumer use; for full coverage terms, including commercial settings, see the Harvia warranty document linked at the top of this page.