Carbon Smart Finnish Sauna Room | 3' x 4'
Freight Delivery $950
Flat-rate freight to the contiguous US. The carrier will call to schedule curbside delivery with liftgate service.
30-Day Returns
Standard 30-day return policy after delivery, subject to terms.
Speak to an Expert
Call 954-674-8133 for sizing advice and quotes.
Shipping & Returns
We ship within the contiguous United States only (not Alaska or Hawaii). Depending on the product, shipping is either free or offered at a flat rate. Large items ship via freight, and flatbed delivery may involve additional shipping terms. Please inspect your delivery for damage and contact us with photos right away if you spot any. Once your order has entered production it can no longer be cancelled. Our standard 30-day return policy applies after delivery, subject to the applicable terms and conditions. If an item is shipped to a location unable to accept delivery, you will be responsible for arranging pickup from the carrier's terminal, along with any applicable storage, redelivery or other associated fees.
Choose options
The Finnish Sauna Builders Carbon Smart™ 3' × 4' × 8' Indoor Sauna Room Kit transforms even the most intimate residential space into a private wellness sanctuary. Designed for the homeowner who refuses to sacrifice the authentic Finnish sauna experience simply because space is limited, this precision-engineered modular kit delivers full-spectrum sauna heat and therapeutic steam in a footprint no larger than a small bathroom corner — making genuine luxury wellness accessible where it was previously impossible.
Available in thermally modified Thermo Poplar with Finnish Sauna Builders' modular precision, the Carbon Smart™ kit is crafted by America's premier sauna manufacturer, whose Scandinavian heritage and American craftsmanship combine to produce indoor sauna rooms of unmatched quality. At this scale, the 3' × 4' kit is ideal for a dedicated personal wellness alcove, master bathroom integration, or a compact guest suite upgrade — and can be paired with a Harvia KIP 4.5KW WiFi or HUUM Cliff Mini heater for precise, app-controlled heat.
Key Features
- Carbon Smart™ Technology: Finnish Sauna Builders' modular system — precision-engineered for clean installation and authentic performance
- Wood Options: Thermo Poplar. Western Red Cedar is also available by special order. Call 954-674-8133 for pricing.
- Footprint: 3' × 4' × 8' — the most space-efficient Carbon Smart configuration; fits bathroom alcoves and compact wellness rooms
- Heater Compatibility: Harvia KIP 4.5KW WiFi or HUUM Cliff Mini 3.5KW WiFi — both with app control
- Accessories: Optional bench skirting for a finished, polished interior aesthetic
Specifications
- Dimensions: 3' × 4' × 8' (W × D × H)
- Capacity: 1 person
- Wood: Thermo Poplar
- Heater Range: 3.5KW–4.5KW
- Placement: Indoor
- Delivery Inspection: Please report any shipping damage or missing parts within 72 hours of delivery.