Infrared heat works differently than traditional sauna heat. Instead of raising the air temperature until you sweat, CarbonFlex panels warm your body directly at a lower room temperature. That makes longer sessions comfortable and gives the Kiruna 3 broad appeal among people who find high-heat traditional saunas too intense. Seating for three, a 44 by 71 inch footprint, and a standard 120V outlet.
Cheaper infrared cabins put emitters behind your back and call it done. The Kiruna 3 places CarbonFlex panels at the floor, the calves, and inside the bench, so heat reaches the areas that usually get missed. The panels also use low-EMR and low-EF technology, which matters to anyone who has looked into infrared and come across the electromagnetic field question. Expect to feel the effect within 10 to 15 minutes, and you do not need to wait for the cabin to reach maximum temperature first.
At 120V and 20 amps, this cabin does not require a 240V line. Tylö recommends a dedicated circuit so the breaker is not shared, which is a straightforward job compared to running new service. The 78 inch exterior height also clears standard basement ceilings in most Wisconsin homes, which is often the deciding factor on where a sauna can actually go. One note: do not spray water on infrared emitters, since that voids the warranty.
Infrared is hard to judge from a spec sheet. Visit our Madison or Brookfield showroom, run a session, and see whether the gentler heat suits you better than traditional. Compare it against other 3 person saunas while you are here.