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IKI

IKI Pilari sauna heater

IKI makes the Pilari in 10 sizes, from 4.5 to 36 kW, for saunas of 106 ft³ to 1,766 ft³. Slide to your room size to see which one fits, how fast it heats and what it needs from your fuse box.

Updated Oct 18, 2026

Output

4.5–36 kW

Rooms

106 ft³–1,766 ft³

Stones

176 lb–639 lb

Sizes

10

See it in the 3D studioNot sold in Europe & international in this version

Which size fits your sauna?

Your room's effective volume

494 ft³

71 ft³ – 2,048 ft³

Best fit: 10 kW

Work out your effective volume

Effective volume = inside volume, plus 1.2 m³ for every m² of glass, tile or stone; × 1.5 for solid log walls (Harvia's rule, used by most planners).

Sizes and specifications

ModelOutputRoom rangeStonesHeat-upPer session
Pilari 4.5 kW4.5 kW106 ft³–212 ft³176 lb75–105 min$1.38
Pilari 6 kW6 kW177 ft³–318 ft³220 lb65–85 min$1.54
Pilari 7.5 kW7.5 kW247 ft³–424 ft³309 lb70–95 min$2.14
Pilari 9 kW9 kW283 ft³–565 ft³331 lb65–90 min$2.45
Pilari 10 kW10 kW353 ft³–636 ft³375 lb70–95 min$2.82
Pilari 12 kW12 kW494 ft³–848 ft³397 lb70–90 min$3.35
Pilari 18 kW1777218 kW636 ft³–989 ft³617 lb55–75 min$4.20
Pilari 20.7 kW1777620.7 kW777 ft³–1,130 ft³441 lb40–55 min$4.07
Pilari 27 kW1778027 kW883 ft³–1,342 ft³507 lb35–45 min$4.36
Pilari 36 kW1778436 kW1,236 ft³–1,766 ft³639 lb30–40 min$5.49

Heat-up and cost are our heat model's estimate for each size in a room at the middle of its range: indoor, insulated walls, 68 °F around the sauna, heated to 176 °F, one hour of bathing, electricity at $0.18/kWh (United States average).

Electrical connection

Outputthree-phase 400 V (per phase)single-phase 230 V
4.5 kW6.5 A19.6 A
6 kW8.7 A26.1 A
7.5 kW10.8 A32.6 A
9 kW13 A39.1 A
10 kW14.4 A43.5 A
12 kW17.3 A52.2 A
18 kW26 A78.3 A
20.7 kW29.9 A90 A
27 kW39 A117.4 A
36 kW52 A156.5 A

Current is computed from the output; fuse and cable are shown where the maker or dealer states them. A licensed electrician sizes and installs the circuit following the heater's manual and local rules.

Where to see it

  • Pilari 18 kW€2,554 at esaunashop.com (2026-10-18)
  • Pilari 20.7 kW€2,737 at esaunashop.com (2026-10-18)
  • Pilari 27 kW€3,196 at esaunashop.com (2026-10-18)
  • Pilari 36 kW€3,901 at esaunashop.com (2026-10-18)

Prices and availability come from the shop or maker and change; their page is what counts. Shop offers are added as retailers join.

Sources

Other heaters for the same rooms

Questions and answers

What size sauna does the IKI Pilari heat?

IKI rates the sizes for these rooms: Pilari 4.5 kW 106 ft³–212 ft³; Pilari 6 kW 177 ft³–318 ft³; Pilari 7.5 kW 247 ft³–424 ft³; Pilari 9 kW 283 ft³–565 ft³; Pilari 10 kW 353 ft³–636 ft³; Pilari 12 kW 494 ft³–848 ft³; Pilari 18 kW 636 ft³–989 ft³; Pilari 20.7 kW 777 ft³–1,130 ft³; Pilari 27 kW 883 ft³–1,342 ft³; Pilari 36 kW 1,236 ft³–1,766 ft³. Use your room's effective volume: add 1.2 m³ for every m² of glass, tile or stone, and multiply by 1.5 for solid log walls.

What fuse or breaker does the IKI Pilari need?

It depends on the size and your supply: Pilari 4.5 kW: 3~ 400 V: 6.5 A, 1~ 230 V: 19.6 A; Pilari 6 kW: 3~ 400 V: 8.7 A, 1~ 230 V: 26.1 A; Pilari 7.5 kW: 3~ 400 V: 10.8 A, 1~ 230 V: 32.6 A; Pilari 9 kW: 3~ 400 V: 13 A, 1~ 230 V: 39.1 A; Pilari 10 kW: 3~ 400 V: 14.4 A, 1~ 230 V: 43.5 A; Pilari 12 kW: 3~ 400 V: 17.3 A, 1~ 230 V: 52.2 A. A licensed electrician sizes the circuit from the heater's manual and local rules.

How long does the IKI Pilari take to heat up?

In a well-insulated indoor room at the middle of each size's range, our heat model gives: Pilari 4.5 kW 75–105 min; Pilari 6 kW 65–85 min; Pilari 7.5 kW 70–95 min; Pilari 9 kW 65–90 min; Pilari 10 kW 70–95 min; Pilari 12 kW 70–90 min to reach 176 °F. Outdoor saunas, glass and cold weather take longer.

How many stones does the IKI Pilari take?

As stated by IKI: Pilari 4.5 kW 176 lb; Pilari 6 kW 220 lb; Pilari 7.5 kW 309 lb; Pilari 9 kW 331 lb; Pilari 10 kW 375 lb; Pilari 12 kW 397 lb; Pilari 18 kW 617 lb; Pilari 20.7 kW 441 lb; Pilari 27 kW 507 lb; Pilari 36 kW 639 lb. Use the stone size the manual specifies and re-stack the stones at least once a year, replacing crumbled ones.

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