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    ThermaSol Medium Solaris Outdoor Sauna | Hybrid or Solar Powered

    Harvia, ThermaSol
    $70,714.00

    The sauna you’d hand your kids twenty years from now. The Solaris is Kirami’s solar-powered, off-grid electric sauna line, named to TIME’s Best Inventions of 2025. The Medium is the bigger of the two saunas in the line: a 3 kW Harvia KIP heater running off rooftop solar and a battery bank, with no electrical service to maintain. 86 by 86 inches, four to five people, about 242 cu ft inside. Tile Oak cladding inside and out, Brushed Alder benches, solar-tinted panoramic glass, RGB LED lighting. Built in Finland by Kirami. Twelve-week build, shipping included free.

    ThermaSol Solaris outdoor pre-assembled sauna, tile oak cladding, Harvia KIP 3 kW heater with Wi-Fi, seats 2-3 people, built in Finland.
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    ThermaSol Small Solaris Outdoor Sauna | Solar Off-Grid

    ThermaSol
    $66,645.00

    Most outdoor saunas require a 240V trench. This one does not. The Solaris Small is the world’s first solar-powered, off-grid electric sauna: 3 kW Harvia KIP heater running off integrated rooftop panels and an onboard battery bank. Named to TIME’s Best Inventions of 2025 list. 86 by 60 inches, two to three people, Tile Oak cladding inside and out, Brushed Alder benches, solar-tinted panoramic glass, RGB LED lighting. No chimney, no service drop, no wood pile. Built in Finland by Kirami. Twelve-week build, ships free.