The Kohler C1 Indoor Sauna features a premium Scandinavian spruce wood interior and Graphite Grey exterior that exudes a welcoming, warm atmosphere. An obeche wood bench and matching backrest with 2700k warm white indirect lighting positioned behind it provides a comfortable sauna experience. The tempered glass door and windows, along with mineral wool insulation and rubber seals, provide excellent heat retention. The C1 Indoor Sauna includes a freestanding FERO Sauna Heater, along with Sauna Stones and Heater Guard. A digital control panel mounted externally provides easy access to sauna temperature, session time, and backrest lighting. The C1 Indoor Sauna is also designed for both freestanding and alcove installation, providing flexibility for your sauna's location. Premium Scandinavian spruce interior and Graphite Grey exterior walls Freestanding FERO electric sauna heater for a traditional sauna experience Warm white indirect lighting for gentle and relaxing atmosphere Dual thermostatic control for a safe, consistent, and repeatable sauna session Digital display controls temperature, time, and backrest lighting Aerotherm ventilation system that ensures adequate supply of oxygen and air exchange 2.1" (5.4 cm) thick mineral wool insulation between walls for heat retention0.3" (.8 cm) tempered glass door and windows Beech wood door handles remain cool to the touch Tongue-and-groove walls and connections for a seamless appearance Multiple cabin sizes available to best fit your needs. The driver is responsible for "curbside delivery only" and will lower the items to ground level. Prior to shipping this product, we often contact customers to share shipment details and discuss any extenuating delivery circumstances that may complicate or cause additional delivery expenses. Our goal is to ensure your project's success.