Sauna heater brands

About a dozen brands make most of the sauna heaters and wood stoves sold in Canada and the United States. Most come from Finland, Estonia and Sweden, and two parent companies own more than half of the names. Here is each one: where it comes from, what it makes and who owns it now.

Showing all 11 brands

  1. Harvia

    Origin
    Finland
    Since
    1950
    Group
    Harvia Group

    The largest name in the category. Wall-mounted KIP and Vega heaters, the Cilindro tower, the Legend and M3 wood stoves, plus steam and infrared.

    ElectricWood-burningSteamInfrared

  2. HUUM

    Origin
    Estonia
    Since
    2013
    Group
    Independent

    Round heaters wrapped in a cage of stones. The DROP won a Red Dot award in 2015. The UKU control runs the HUUM app.

    ElectricWood-burning

  3. Saunum

    Origin
    Estonia
    Since
    2014
    Group
    Independent

    Electric heaters with a built-in fan unit that mixes hot ceiling air down to the benches, so heat and steam stay more even from floor to ceiling.

    Electric

  4. Narvi

    Origin
    Finland
    Since
    1937
    Group
    Independent

    A Finnish family maker best known for clean-burning wood stoves. Most production stays in Finland. Sister brand Kota.

    ElectricWood-burning

  5. IKI

    Origin
    Finland
    Since
    1997
    Group
    Independent

    Hand-built stoves with an open steel-mesh cage that holds a very large mass of stones. Mainly wood-burning, with a few electric pillar models.

    Wood-burningElectric

  6. EOS

    Origin
    Germany
    Since
    1970s
    Group
    Harvia Group

    German premium electric heaters such as Mythos, Bi-O Cubo and the in-wall Invisio, aimed at architects and high-end home and spa projects.

    ElectricSteamInfrared

  7. Tylö, Helo and Kastor

    Origin
    Sweden / Finland
    Since
    1919
    Group
    Sauna360

    Three Nordic brands under the Sauna360 Group. Tylö makes Sense heaters and steam generators, Helo makes Himalaya and Roxx, Kastor makes wood stoves.

    ElectricWood-burningSteam

  8. Finnleo

    Origin
    USA
    Since
    1984
    Group
    Sauna360

    A Minnesota sauna maker with a large dealer network in the US and Canada. Designer, Himalaya and Laava heaters with SaunaLogic controls.

    ElectricWood-burningInfrared

  9. Amerec

    Origin
    USA
    Since
    Not stated
    Group
    Sauna360

    An American heater and steam generator brand. Designer and Pro heaters, AK steam generators, with a published US and Canada warranty.

    ElectricSteam

  10. Scandia

    Origin
    USA
    Since
    1964
    Group
    Independent

    An American maker of Ultra electric heaters and one of the few sources of gas-fired sauna heaters. Ten-year limited residential warranty.

    ElectricGas

  11. Kuuma

    Origin
    USA
    Since
    1930s
    Group
    Independent

    Heavy wood-burning stoves from the Lamppa family in northern Minnesota, built for cold-climate cabin saunas. UL listed since 2004.

    Wood-burning

Who owns which sauna heater brand

Seven of the names on this page belong to just two companies. Heaters with different badges can share parts suppliers, service networks and warranty departments, so ownership is worth knowing before you compare them.

GroupBrandsParent company
Harvia GroupHarvia, EOSHarvia Plc, Finland (Nasdaq Helsinki). Bought EOS in stages, 100% since 2022.
Sauna360 GroupTylö, Helo, Kastor, Finnleo, AmerecFormerly TylöHelo. Acquired by Masco Corporation (Watkins Wellness) in 2023.
IndependentHUUM, Saunum, Narvi, IKI, Scandia, KuumaEach runs as its own company. Saunum Group is listed on Nasdaq Baltic; Kuuma is made by the family-run Lamppa Manufacturing.

How to choose a sauna heater brand

The model matters more than the badge, but a few things depend on the company behind the heater.

  1. North American certification. In Canada an electric heater needs a cUL, cETL or CSA mark to pass inspection. European models without one cannot legally be wired in.
  2. Service where you live. Elements and contactors wear out years later. Pick a brand with a distributor or dealers in your province; see where to buy sauna heaters in Canada.
  3. Electric or wood. Saunum, EOS, Amerec and Scandia make no wood stoves, and Kuuma makes nothing else. The trade-offs are in electric vs wood-burning sauna heaters.
  4. Controls. Harvia (MyHarvia), HUUM (UKU), Saunum (Leil) and Finnleo (SaunaLogic) all have phone apps, usually through a separate Wi-Fi control you buy with the heater.
  5. Stone mass. More stones give softer, longer-lasting steam and a slower warm-up. IKI, Kuuma and the Harvia Cilindro sit at the heavy end.

For a side-by-side table with apps and warranties, open the sauna heater brand comparison. To size the heater for your room, use the sauna heater size calculator.

Guides

Electric vs wood-burning sauna heater

Heat-up time, running cost, steam, chimneys and permits.

Sauna heater size calculator

Room volume to kW, with corrections for glass and log walls.

Harvia vs HUUM

The two brands buyers compare most, line by line.

Wiring a 240 V sauna heater in Canada

Breakers, wire size, permits and the certification question.

Questions buyers ask

What is the biggest sauna heater brand?

Harvia, founded in Finland in 1950, is the largest maker of sauna heaters and is listed on Nasdaq Helsinki. It also owns the German brand EOS.

Which sauna heater brands are Finnish?

Harvia, Narvi and IKI are Finnish. Helo and Kastor also have Finnish roots and now belong to the Sauna360 Group together with the Swedish brand Tylö.

Who owns Finnleo and Amerec?

Finnleo and Amerec are part of the Sauna360 Group, along with Tylö, Helo and Kastor. Masco Corporation bought Sauna360 in 2023 through its Watkins Wellness business.

Which brands make wood-burning sauna stoves?

Harvia, HUUM, Narvi, IKI, Kastor, Finnleo (through the Kastor Saga) and Kuuma from Minnesota all sell wood-burning stoves.

Can I install a European sauna heater in Canada?

Only if that model carries a North American safety mark such as cUL, cETL or CSA. Many brands sell separate 208/240 V versions for North America, so check the exact model number before buying.

Last checked November 8, 2026. Facts come from the brands' own sites and documents. How we check