The infrared side
PureTech full spectrum panels covering far infrared and near infrared wavelengths. Near-zero EMF, independently verified. This is the same infrared technology Golden Designs puts in their standalone infrared cabins, not a scaled-down version.
In infrared mode, you get low-temperature deep tissue heating at 120-150°F. The air stays comfortable. The heat penetrates 1.5-3 inches into tissue. This is the mode for post-training recovery, morning wake-up sessions, or evenings when you want warmth without the intensity of traditional heat.
The infrared side runs on a standard 120V outlet. No special electrical work needed for this half of the sauna.
The traditional side
Harvia SWS80. This is not a generic heater. Harvia is the world's largest sauna heater manufacturer. The SWS80 is an 8 kW wall-mounted stove with rocks. Pour water for steam. The heat quality at 190°F+ is indistinguishable from a dedicated traditional sauna.
The stove requires a 240V dedicated circuit. This is the same electrical requirement as any standalone traditional sauna. If you already have 240V for a hot tub or EV charger, you may be able to share the circuit run (consult your electrician on amperage).
When the Harvia is running, the Carinthia is a traditional sauna. Full stop. The rocks, the steam, the wood smell, the face heat. The infrared panels sit dormant on the other side. No compromise on the traditional experience.
What works
The dual-mode concept is not a gimmick. Golden Designs did not bolt infrared panels onto a traditional sauna as an afterthought. Both sides are fully specced. The PureTech panels are real. The Harvia stove is real. Either mode would be credible in a standalone product.
Canadian hemlock construction is solid. Outdoor rated with proper weather protection. Bluetooth and chromotherapy lighting are standard. 5-year limited warranty is among the best in this price range.
The space efficiency is genuine. One 3-person footprint replaces what would otherwise be two separate units. For properties with limited outdoor space, this is not a trivial advantage.
What falls short
Three-person capacity is limiting for a $6,999 product. The Dundalk Georgian ($7,009) seats six for essentially the same price. If you primarily want traditional heat and occasionally host more than two guests, the Georgian is the better buy.
Two electrical circuits add installation complexity and cost. You need both 120V and 240V runs to the sauna location. Budget $400-800 for dual electrical installation if neither is currently available.
You cannot run both modes in a way that makes thermal sense. Infrared is optimized at 120-150°F. Traditional is optimized at 190°F+. Running both creates a temperature that is too hot for ideal infrared therapy and not hot enough for a satisfying traditional session. You pick a mode each session. You do not blend them.
Buy it or skip it
Buy the Carinthia if: You sauna 4+ times per week and genuinely want infrared some days and traditional other days. You have space for only one outdoor unit. You understand the dual electrical requirement and can accommodate it. You value versatility over capacity.
Skip it if: You know you prefer traditional heat. Buy the Almost Heaven Pinnacle ($5,715) instead, save $1,284, get a heater included, and enjoy better traditional heat in a barrel that seats four.
Skip it if: You know you prefer infrared. Buy the Golden Designs 3-Person Infrared ($4,999) instead. Same PureTech technology, same capacity, $2,000 less, and only one electrical circuit needed.
Available through Select Saunas with HSA/FSA checkout via TrueMed.
