Scandinavian ThermoWood. Architectural Cube. Two to Three People.

The Mande MW12 is a two-to-three-person outdoor sauna constructed from genuine European ThermoWood® — thermally modified Scandinavian timber heat-treated to resist moisture, dimensional movement, and decay without chemical treatment. The full glass front gives the MW12 a clean architectural presence suited to a designed outdoor environment. At its scale, the MW12 is the entry point into the Mande line — a precisely sized structure for the buyer who wants authentic traditional steam heat in a compact, permanent outdoor installation.

Heat and Performance

• Traditional steam heat — operating range 170–200°F
• Heat-up time: approximately 25–35 minutes
• Recommended heater: Harvia Kip 6.0 kW (240V electric) — standard or WiFi controls, selected separately
• 240V electrical required — consult a licensed electrician

Dimensions

• Exterior: 83.1 in W × 46.9 in D × 83.5 in H (6 ft 11 in × 3 ft 11 in × 7 ft 0 in)
• Interior: 77.6 in W × 75.6 in H
• Door: 29.5 in × 68.9 in leaf · 25.6 in clear opening
• Assembly: approximately 8 hours for a two-person team

Construction

• 2" ThermoWood® profile walls
• Full tempered safety glass front
• Flat-packed for delivery; doors, benches, and back walls pre-assembled

Shipping

Ships free via curbside LTL freight with liftgate to the contiguous 48 states. Note any freight damage at delivery.

• Crate: 95 in L × 46 in W × 30 in H (with skid)
• Shipping weight: 1,310 lb
• Requires a minimum 46 in clear path from the curb to the installation site

Warranty

Mande Spa USA Limited Product Warranty. Mande Spa USA LLC (Palatine, Illinois) warrants the sauna structure and frame, ThermoWood® wall panels, roof structure, benches and interior fittings, tempered glass door and windows, and hardware and fasteners against defects in materials and workmanship for 5 years from the date of original purchase for residential use, and 1 year for commercial use. Where fitted, LED lighting and bituminous roof tiles carry 2 years residential / 1 year commercial. Sauna stones are consumable items and are not covered. Commercial use includes gyms, hotels, resorts, wellness and recovery centers, fitness and medical facilities, therapy clinics, rental properties and short-term rental platforms — any revenue-generating installation. The warranty is non-transferable and applies to the original purchaser only, with proof of purchase. All electrical connections must be performed by a licensed electrician, and proof of licensed installation is required for any electrical claim — self-wired heaters are not covered. The sauna must be assembled in accordance with the official Mande Spa USA assembly guide and installed on a level, solid, well-drained base. Shipping damage must be documented and reported within 5 days of delivery. Normal weathering, silvering, and natural ThermoWood® color change are expected characteristics, not defects. Read the full Mande Spa USA Limited Product Warranty →

Harvia heater and controls. Harvia heaters, controls, electrical components, and related accessories are excluded from the Mande warranty and are covered solely by Harvia's manufacturer warranty — 2 years for family use, plus 1 additional year for electric heaters registered with Harvia within 30 days of purchase (3 years total). For commercial use, Harvia covers electric heaters and control units for 2 years, excluding heating elements and parts subject to wear.