Thermasol Luxury Indoor Sauna - Lumaria

The Lumaria is our design-forward indoor flagship — a corner-friendly room with a panoramic glass front that brings light and a sense of openness into a modest footprint. Where most indoor saunas feel like a closet, the Lumaria feels like a room you'd want to sit in even cold.

It seats up to five bathers, offers left- or right-hand entrance to suit your corner, and is finished in Thermo-aspen benches against brushed Tyrol wood with black-trimmed panoramic glazing. Smart Wi-Fi controls and integrated LED lighting come standard, and it ships with a Harvia Virta 9 kW heater so it is ready to run on arrival.

The Lumaria answers the hardest indoor question — where does it go? — with a corner. The two glazed faces meet at the room's open angle, so a footprint that would feel tight as a box reads as open air, and the left- or right-hand door option means the layout adapts to your wall, not the other way around.

Five bathers is real capacity for the footprint, and the interior is where the budget shows: Thermo-aspen benches that stay pale and cool, brushed Tyrol wood walls with depth you can see, black-trimmed panoramic glass that frames the room like furniture. It's the build for interiors where the sauna will be seen as much as used.

The included Virta 9 kW is a genuine stone heater — pour water, get löyly — with Wi-Fi scheduling for the come-home-to-heat routine. Electrical and venting needs match any indoor room: a dedicated 240 V run and a low/high vent pair, drawn out in your quote.

Because it lives indoors, upkeep is a bench rinse and an after-session airing. Thermo-aspen doesn't need oiling and won't darken with years of heat — the interior you buy is the interior you keep.

Who is it for? The Lumaria is the design-first choice — for interiors where the sauna appears in the architecture photos, not behind a door. It competes with European custom glass rooms at multiples of its price, and its corner geometry frequently rescues floor plans where a rectangular room simply didn't fit.

Ordering mirrors the line: delivered price with freight in one figure, left- or right-hand entry chosen at order, Virta 9 kW with Wi-Fi in the crate, and the install drawing for your contractor. From order to first löyly, most Lumaria installs complete inside six weeks.

Half the Lumaria's job is what it does for the room it's in: after dark, with the LED scene low, the glass corner glows like built-in lighting — the reason designers spec it into wellness suites and primary-bath renovations. It's the rare mechanical purchase that photographs like furniture.

Capacity-wise, five seats means the Lumaria hosts: family rounds, guest evenings, the post-training group. And because the entry hand is chosen at order, the door lands where your room's circulation wants it — a small option that decides whether a corner build feels inevitable or improvised.

Timing follows the same pattern as our other indoor rooms: with the entry hand chosen and the circuit booked, the Lumaria goes from crate to first session in a weekend. The corner it occupies is usually the last corner anyone remembers being empty.

One comparison buyers ask for: Lumaria versus importing a European custom glass room. The custom route runs multiples of the price, months of lead time, and a trades-coordination project; the Lumaria arrives as a finished product with its heater in the crate and installs in a weekend. The custom room's only remaining advantage is bespoke dimensions — if the corner fits the Lumaria, the argument is over.

Corner-friendly and glass-fronted, the Lumaria feels twice its footprint — warmth without the walls closing in.

• Seats up to 5 bathers
• Corner layout, left- or right-hand entry
• Thermo-aspen benches with brushed Tyrol wood interior
• Panoramic clear-glass front, black trim
• Wi-Fi smart controls and integrated LED lighting
• Ships with a Wi-Fi-enabled Harvia Virta 9 kW heater