Thermo Wood Cube Indoor Sauna - Mini (2 Person)

Finnmark Thermo Wood Cube Indoor Sauna - Mini (2 Person)

Transform any room into a personal wellness retreat with our compact Thermo Wood Cube Sauna. Expertly crafted in Estonia with authentic Baltic sauna heritage, this premium indoor sauna combines modern design with centuries of traditional craftsmanship.

Why Choose Finnmark?

• Premium Thermally Modified Wood: Exceptional resistance to decay and warping. Darker, richer colour that ages beautifully, creating a stunning focal point in your home.
• Space-Efficient Design: Modern square barrel shape maximises interior space whilst maintaining a compact footprint (145cm × 133cm) – perfect for spare rooms, basements, or converted garages.
• Indoor Installation Ready: Designed primarily for indoor use with integrated ventilation system. Roof kit included should you wish to relocate outdoors in future.
• Sauna from Finland Member: We're the UK's first member of this prestigious certification, guaranteeing authentic sauna construction standards.

Technical Specifications

What's Included

Base Unit Includes:

• 40mm thermally modified spruce frame and staves
• Two foundation beams
• Two-tier thermally modified aspen benches
• 8mm tempered glass door and front walls
• Thermally modified aspen flooring duckboards
• Integrated ventilation valve
• Bitumen roof shingles (for outdoor use if required)
• Two stainless steel frame bands
• Complete assembly hardware and detailed instructions

Complete Package Adds:

• Narvi NM 6kW – Authentic Finnish Electric Heater
• Sauna Stones – Professional-grade stones for optimal heat distribution

Installation & Requirements

Room Preparation: Requires a level, solid floor capable of supporting 450kg (concrete, reinforced timber joists, or solid flooring). Allow minimum 150mm clearance from walls on all sides for proper air circulation and heat dissipation. Minimum room dimensions: 175cm × 165cm including clearance allowances. 

Ventilation: Adequate ventilation is essential for safe operation. The room must have either natural ventilation (window or air vent) or mechanical extraction. Fresh air intake and exhaust are critical for maintaining proper oxygen levels and removing moisture during use.

Ceiling Height: Minimum 230cm ceiling height required to accommodate the 221cm sauna height plus clearance.

Electrical: The 6kW heater requires a dedicated 32A circuit installed by a qualified electrician (installation not included). Heater must be hardwired – no plug connection.

Assembly: Designed for straightforward DIY assembly. Most customers complete installation in a weekend with basic tools. Comprehensive instructions included.

Delivery: Specialist delivery required. Ships in a single DIY box (H:78cm, L:209cm, W:111cm). Ensure delivery access to your installation room.

Why Thermally Modified Wood?

Thermal modification isn't just a treatment—it's a complete transformation. The wood is heated to 200°C, permanently altering its cellular structure for exceptional durability. The naturally darker, richer colour creates a sophisticated aesthetic that complements contemporary interiors beautifully, whilst the enhanced stability ensures your sauna maintains its shape and performance for decades.

Perfect For

• Couples seeking a private wellness retreat at home
• Homeowners with spare rooms or basement spaces
• First-time sauna buyers
• Year-round wellness enthusiasts
• Property developers adding luxury amenities to residential or commercial spaces

About Finnmark Sauna

Finnmark Sauna is the UK's first member of "Sauna from Finland". Operating from Durham with a team of 40 specialists, we're dedicated to bringing authentic sauna experiences to British homes. We stock only premium brands including HUUM, Narvi, Tulikivi, IKI, Helo, and Kastor—never compromising on quality.

Building Regulations

Indoor sauna installations should comply with Building Regulations, particularly concerning ventilation, electrical safety, and structural loading. We recommend consulting with a qualified professional to ensure your installation meets all requirements. Most installations are straightforward, but specific requirements may vary depending on your property type and location.