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    ThermaSol Lumaria indoor flat-packed sauna, brushed tyrol wood panels, Harvia Virta 9 kW heater with Wi-Fi, seats 2-3 people, built in USA.
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    ThermaSol Medium Lumaria Sauna Cabin | 9.0 kW

    ThermaSol
    $21,276.00

    Two to three regulars, indoor footprint. The Lumaria Medium is the mid-size ThermaSol indoor: 86.6 by 66.9 inches, 278 cu ft, with a transparent panoramic glass front and a 9 kW Harvia Virta paired with the CX45 controller. Brushed Tyrol panel walls, 24-inch Thermo-Aspen benches. Lives inside a finished room: no foundation pour, no demo. Pick door side at checkout. Designed and crafted in the USA by ThermaSol. Four-to-eight-week build, free shipping.

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    ThermaSol Lumaria indoor flat-packed sauna, brushed tyrol wood panels, Harvia Virta 9 kW heater with Wi-Fi, seats 4-5 people, built in USA.
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    ThermaSol Large Lumaria Sauna Cabin | 9.0 kW

    ThermaSol
    $23,648.00

    Honest take: most indoor sauna kits do not look like the renderings. The Lumaria Large is the exception. ThermaSol’s biggest indoor footprint, 86.6 by 86.6 inches, 360 cu ft, four to five people. Brushed Tyrol panel interior with Thermo-Aspen benches, panoramic transparent glass front, 9 kW Harvia Virta paired with the CX45 controller. Flat-packed for a finished-room install with no drywall demo. Pick door side at checkout. Four-to-eight-week build, free shipping included.

    Select options This product has multiple variants. The options may be chosen on the product page
    ThermaSol Astra indoor flat-packed sauna, brushed tyrol wood panels, Harvia Virta 9 kW heater with Wi-Fi, seats 3-4 people, built in USA.
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    ThermaSol Astra Sauna Cabin | 9.0 kW

    ThermaSol
    $23,604.00

    Hall closet or guest-room corner? The Astra is the indoor ThermaSol model built for households that have closet-conversion space rather than a dedicated room. 85.4 by 85.4 inches with corner glass and an L-bench, so it tucks into a finished-basement nook. Same 9 kW Harvia Virta as the larger Aalto in 350 cu ft, so heat-up is faster. Brushed Tyrol panel interior, Thermo-Aspen benches, CX45 controller. Pick door side at checkout. Four-to-eight-week build, free shipping.

    Select options This product has multiple variants. The options may be chosen on the product page
    ThermaSol Aalto indoor flat-packed sauna, brushed tyrol wood panels, Harvia Virta 9 kW heater with Wi-Fi, seats 3-4 people, built in USA.
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    ThermaSol Aalto Sauna Cabin | 9.0 kW

    ThermaSol
    $23,455.00

    Named for Finnish architect Alvar Aalto, the cabin is ThermaSol’s design-forward indoor option. The Aalto is an indoor sauna sized for transformation: 87 by 87 inches, 83 inches tall, drops into a finished basement or spa room without drywall demo or a foundation pour. Full-height transparent panoramic glass front, 9 kW Harvia Virta behind safety rails, brushed Tyrol panel interior with Thermo-Aspen benches. Pick door side at checkout. Designed and crafted by Finland’s best, most experienced team.

    Select options This product has multiple variants. The options may be chosen on the product page