SAUNA HEATERS

Sauna heaters: the right heater for your room.

Start with your room’s size and the power you have. Then narrow by where it goes, how you control it and the heat you like.

Sauna heaters in 3D

Each card opens the heater’s SaunaDesignPro page with its 3D model. Heaters not yet modeled are at Sauna Marketplace: every listing.

Planning pages for heaters sold outside the US: HUUM CORE Wall, HUUM CORE Wall Combi, HUUM CORE Wall Mini, HUUM CORE Wall Mini Combi.

Every heater on the numbers that decide.

Ratings follow the matching variants and electrical connections. Room volume includes each manufacturer’s glass allowance.

HeaterTypePowerRoom volumeStonesControlsLowest ceilingSide clearance
HUUM COREFloor-standing, electric4.8 to 10.5 kW177–318; 142–248; 283–460; 212–354; 354–566; 265–424 cu ft88 lbWall controller80 in2 in
HUUM DROPWall-mount, electric3.4 to 9 kW106–248; 89–177; 177–318; 142–248; 248–389; 177–301; 283–460; 212–354 cu ft121.3 lbWall controller75 inSee the manual
Harvia SpiritWall-mount, electric6 to 9 kW177–294; 177–431; 177–494 cu ft110 lbWall controller75 in3.2 in
Saunum AIR Black (Closed Basket)Air-blending, electric4.95 to 6.9 kW106–212; 177–318 cu ft110 lbWall controller73 inSee the manual
Saunum AIR Stainless (Open Basket)Air-blending, electric4.95 to 6.9 kW106–212; 177–318 cu ft130 lbWall controller73 inSee the manual
Saunum AIR PerfectAir-blending, electric6.9 to 9.9 kW210–350; 318–565 cu ft115 lbWall controller77 inSee the manual
Saunum AIR L Black (Closed Basket)Air-blending, electric9.9 to 15 kW283–494; 424–565; 530–812 cu ft180 lbWall controller73 inSee the manual
Saunum AIR L Stainless (Open Basket)Air-blending, electric9.9 to 15 kW283–494; 424–565; 530–812 cu ft190 lbWall controller73 inSee the manual
Harvia KIPWall-mount, electric4.5 to 8 kW100–210; 170–300; 250–425 cu ft44 lbWall controller75 inSee the manual
Harvia KIP BlackWall-mount, electric6 to 8 kW170–300; 250–425 cu ft44 lbWall controller75 inSee the manual
Harvia KIP-B Built-In ControlsWall-mount, electric4.5 to 8 kW100–210; 170–300; 250–425 cu ft44 lbControls on the heater75 inSee the manual
Harvia CilindroTower, electric6 to 10.5 kW141–294; 141–431; 141–494; 141–636 cu ft200 to 265 lbOn the heater or a wall controllerSee the manualSee the manual
Harvia The Wall SW80 BlackSteelWall-mount, electric6 to 8 kW177–294; 177–431 cu ft44 lbControls on the heater75 inSee the manual
Harvia ClubFloor-standing, electric9.8 to 14.8 kW390–600; 500–750; 630–1000 cu ft132 lbWall controller78 inSee the manual
HUUM HIVE MiniBeehive, electric4.5 to 10.6 kW177–318; 142–248; 283–460; 212–354; 354–566; 265–424 cu ft331 lbWall controller77 inSee the manual
HUUM HIVEBeehive, electric9 to 18 kW424–636; 318–495; 530–813; 389–601; 636–989; 477–742 cu ft528 lbWall controller77 inSee the manual
HUUM CLIFFFloor-standing, electric4.8 to 11 kW177–318; 142–248; 283–460; 212–354; 354–566; 265–424 cu ft165 lbWall controller86.6 inSee the manual
HUUM CLIFF MiniWall-mount, electric2.85 to 4 kW106–177; 106–159 cu ft132 lbWall controller86.6 inSee the manual
HUUM STEELFloor-standing, electric4.8 to 11 kW177–318; 142–248; 283–460; 212–354; 354–566; 265–424 cu ft330 lbWall controller86.6 inSee the manual
HUUM STEEL MiniWall-mount, electric2.85 to 4 kW106–177; 106–159 cu ft132 lbWall controller86.6 inSee the manual
EOS MythosFloor-standing, electric7.5 to 15 kW282–423; 315–497; 497–637; 637–886 cu ft77.16 to 99.21 lbWall controller74.81 inSee the manual
EOS Invisio MidiFloor-standing, electric6 to 12 kW215–282; 315–497; 497–637 cu ft45.19 lbWall controller74.81 inSee the manual
Harvia Vega CompactWall-mount, electric3.5 kW71–175 cu ft28.5 lbControls on the heater75 inSee the manual
Harvia Linear WoodWood stove, wood15.7 to 17.9 kW212–565; 318–636 cu ft79.37 to 88.18 lbWood fireSee the manualSee the manual
Harvia Pro WoodWood stove, wood24.1 to 31 kW283–706; 353–918; 494–1271 cu ft88.18 to 132.28 lbWood fireSee the manualSee the manual
Harvia M3 Wood StoveWood stove, wood16.5 kW212–459 cu ft66.14 lbWood fireSee the manualSee the manual
Harvia Legend WoodWood stove, wood15.9 to 16 kW212–459; 353–706 cu ft264.55 to 440.92 lbWood fireSee the manualSee the manual
Harvia Legend GreenFlame 240Wood stove, wood15.9 kW353–706 cu ft440.92 lbWood fire82.68 inSee the manual
Harvia VirtaFloor-standing, electric6 to 10.5 kW177–294; 177–431; 177–494; 177–635 cu ft110 to 154 lbWall controller75 inSee the manual
Harvia Virta CombiFloor-standing, electric8 to 10.5 kW177–431; 177–494; 177–635 cu ft110 to 154 lbWall controller75 inSee the manual
Harvia Virta ProFloor-standing, electric16 to 20 kW354–918; 354–1130 cu ft200 to 264.6 lbWall controller82.7 inSee the manual
Cozy SW 18Wood stove, wood18 kW318–636 cu ft396.83 lbWood fire87.01 in9.06 in
Sources: HUUM CORE planning page · HUUM DROP planning page · Harvia Spirit planning page · Saunum AIR Black (Closed Basket) planning page · Saunum AIR Stainless (Open Basket) planning page · Saunum AIR Perfect planning page · Saunum AIR L Black (Closed Basket) planning page · Saunum AIR L Stainless (Open Basket) planning page · Harvia KIP planning page · Harvia KIP Black planning page · Harvia KIP-B Built-In Controls planning page · Harvia Cilindro planning page · Harvia The Wall SW80 BlackSteel planning page · Harvia Club planning page · HUUM HIVE Mini planning page · HUUM HIVE planning page · HUUM CLIFF planning page · HUUM CLIFF Mini planning page · HUUM STEEL planning page · HUUM STEEL Mini planning page · EOS Mythos planning page · EOS Invisio Midi planning page · Harvia Vega Compact planning page · Harvia Linear Wood planning page · Harvia Pro Wood planning page · Harvia M3 Wood Stove planning page · Harvia Legend Wood planning page · Harvia Legend GreenFlame 240 planning page · Harvia Virta planning page · Harvia Virta Combi planning page · Harvia Virta Pro planning page

Six things to settle before you choose.

Short answers to what decides a heater, each from the manuals printed on SDP’s heater planning pages.

Size it on the room, then add for glass

Multiply width by depth by ceiling height: a 6 by 7 ft room with a 7 ft ceiling is 294 cu ft. Each heater is rated for a range of room volume, and the room has to land inside it.

Glass, tile and stone soak up heat, so makers add to the volume for them. Harvia adds 3.94 cu ft for every square foot, HUUM 3.3 and Saunum 3.0. A 24 by 80 in glass door is 13.3 sq ft, so that room counts as about 347 cu ft for a Harvia. The sizer at the top of this page does the sum for each maker.

Sources: Harvia KIP planning page · HUUM DROP planning page · Saunum AIR Black (Closed Basket) planning page

The circuit decides as much as the room

Most electric sauna heaters in US homes run on a hard-wired 240 V single-phase circuit, installed by an electrician. Many commercial buildings have 208 V three phase, and a heater rated at 240 V puts out less on 208 V: HUUM lists its 4.5 kW DROP at 3.4 kW there.

Small rooms have a smaller option: Harvia’s Vega Compact comes in 120 V and 240 V versions, both hard-wired. Each planning page prints the voltage, phase and output of every size.

Sources: HUUM DROP planning page · Harvia Vega Compact planning page

Controls on the heater, or on the wall

Some heaters carry their own timer and thermostat knobs: the Harvia KIP with built-in controls, the Vega Compact and The Wall. You set them inside the sauna. The standard KIP and the Cilindro are sold either way.

Most others need a separate controller mounted outside the hot room: a HUUM UKU for HUUM heaters, a Harvia Xenio or Fenix for the Spirit, Virta and Club. Saunum ships its AirIQ Wi-Fi controller in the box with every AIR heater.

Sources: Harvia KIP-B Built-In Controls planning page · Harvia Vega Compact planning page · Harvia Cilindro planning page · HUUM DROP planning page · Harvia Spirit planning page · Harvia Virta planning page · Saunum AIR Black (Closed Basket) planning page

Wall-mounted or floor-standing

A wall heater keeps the floor clear, which matters most in a small room: the HUUM DROP, Harvia KIP and Spirit and Saunum AIR all hang on the wall.

Floor-standing heaters can carry far more stone. The HUUM HIVE holds 528 lb and the HUUM STEEL 330 lb, against 44 lb in a Harvia KIP. Under-bench heaters like the EOS Invisio Midi hide below the benches inside a vented shaft the manual specifies.

Sources: HUUM HIVE planning page · HUUM STEEL planning page · Harvia KIP planning page · EOS Invisio Midi planning page

Ceiling height and clearances

Every heater has a lowest finished ceiling it allows: 73 in for the Saunum AIR, 75 in for the HUUM DROP and Harvia KIP, 80 in for the HUUM CORE. The card for each heater shows it.

Each also keeps set distances to walls, benches and the ceiling. The designer places the heater in your room in 3D and flags a clearance the manual does not allow.

Sources: Saunum AIR Black (Closed Basket) planning page · HUUM DROP planning page · Harvia KIP planning page · HUUM CORE planning page · The SaunaDesignPro designer

Questions about sauna heaters

What size sauna heater do I need?

Multiply your room’s width, depth and ceiling height, then add the maker’s allowance for glass, tile or stone: about 4 cu ft per square foot for Harvia, 3.3 for HUUM and 3 for Saunum. Choose a heater whose rated range covers the total. Enter your room in the sizer at the top of this page and the cards show only heaters that fit.

Sources: Harvia KIP planning page · HUUM DROP planning page · Saunum AIR Black (Closed Basket) planning page
Can I plug a sauna heater into a wall outlet?

No. The heaters here are hard-wired by an electrician, most on a 240 V circuit. Even the 120 V version of the Harvia Vega Compact is hard-wired.

Sources: Harvia Vega Compact planning page · Harvia KIP planning page
Do I need a separate controller?

It depends on the heater. The Harvia KIP with built-in controls, the Vega Compact and The Wall have controls on the heater, and the standard KIP and the Cilindro come either way. HUUM heaters need a HUUM UKU controller, and the Harvia Spirit, Virta and Club need a Xenio or Fenix. The Saunum AIR comes with its AirIQ Wi-Fi controller.

Sources: Harvia KIP-B Built-In Controls planning page · Harvia Vega Compact planning page · Harvia Cilindro planning page · HUUM DROP planning page · Harvia Virta planning page · Saunum AIR Black (Closed Basket) planning page
What happens if my building has 208 V power?

A heater rated at 240 V puts out less on 208 V. HUUM lists the 4.5 kW DROP at 3.4 kW on 208 V, for example. Choose the 208 V three-phase chip above to see heaters offered for that service, and check the size table on the heater’s page.

Sources: HUUM DROP planning page
Can I see the heater in my room before I buy?

Yes. Each planning page opens a 3D room with that heater in it, and the designer places it in your own room with its clearances and the stones it holds.

Sources: The SaunaDesignPro designer

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