Ahi 4
Our architectural flagship. Designed to be lived in.
The Ahi 4 is where intentional design meets the oldest wellness ritual there is. Its floor-to-ceiling tempered glass front, clean-lined black aluminum exterior, and warm Canadian red cedar interior aren't just beautiful, they're a considered response to what a sauna should feel like to be inside.
Built to seat four and perform year-round, the Ahi 4 is engineered for consistent heat, natural airflow, and the kind of stillness that's hard to find anywhere else. The interior is finished in zero-VOC natural cedar. No glues, no sealants, nothing that doesn't belong in a space designed for your health. Just wood, warmth, and fresh air, the way it should be.
Aerograde Aluminum & Canadian Cedar Construction
Heats to 220°F
Comfortably Seats 4 People
All Saunas are made to order and will arrive 10-12 weeks after purchase
Designed to Last, Inside and Out
The Ahi 4 is built to the standard we hold everything to, where the materials you see are the same ones you breathe around. Canadian red cedar interior, zero-VOC finishes, and no adhesives or sealants in the heat space. The outter shell is areospace grade aluminum for low maintenance, long lasting protection.
A Presence in Any Landscape
Clean lines and expansive glass make the Ahi 4 a sculptural anchor for any outdoor space. Something that looks considered because it was.
Heat That Holds
Engineered to retain warmth efficiently with active and passive ventilation working in tandem, so the temperature you set is the temperature you feel, session after session.
Built for the Elements
Premium black aluminum exterior siding sheds whatever the weather brings, so the sauna works as hard in winter as it does in summer.
Room to Move
Flip-up benches give you the flexibility to sit, stretch, or lie down, because a good session rarely looks the same twice.
Air You Can Feel
Active and passive ventilation keeps the air inside clean and moving. Dial in exactly how you want it to feel.
Dimensions: 93" W x 72" D x 87" H (Exterior)
Materials: Canadian red cedar with premium black aluminum exterior siding
Finishes:
Interior: Zero-VOC natural cedar, no glues, no sealants, no off-gassing in the heat
Premium weather resistant aluminum metal siding
Glass: 8mm full glass front + tempered glass door
Hardware: Premium stainless steel hardware
Ventilation: Active and passive ventilation for consistent airflow temperature
Lighting: Pre-installed LED lights + controller
Seating: Stadium-style, flip-up benches
All pre-fabricated wood components
Harvia 6kW “The Wall” heater (standard)
Sauna stones
Bucket, ladle, and thermometer
Towel pegs
LED lighting system + controls
Active fan ventilation
Digital sauna controller
Installation guide
WiFi Heater - HUUM DROP Series 6.0kW Sauna Heater Package - UKU WiFi Black $1,000
Currently, all orders are available on a pre-order basis, meaning each product is made to order to ensure the highest quality and customization. As a result, delivery times typically range from 10 to 12 weeks from the date of purchase. We appreciate your patience and are committed to delivering your order as promptly as possible. If you have any questions or need updates during the process, our team is here to assist you.
