The Grandby 300D infrared sauna features a sealed weatherproof cabin and shingled roof for outdoor use. The Grandby is constructed of durable Canadian hemlock and comfortably seats 3 people. Seven halogen heaters will quickly get the sauna to your desired temperature, up to 140 degrees. The Grandby outdoor sauna is a perfect size for the backyard. Includes wide bench seating for maximum comfort, an oxygen ionization system for purifying the air, recessed interior lighting, Bluetooth, cup holders, and more. The Grandby is easy to assemble and the natural Canadian hemlock wood will enhance any outdoor patio setting.· Dimensions: 72" x 47" x 87" · - 7 Halogen Heaters gets the sauna to your desired temperature in just minutes!· Solid Canadian Hemlock wood - Smooth and naturally appealing yet durable. Easy to install tongue and groove construction.· 7 Year Structural Warranty - Guaranteed against defects in materials and workmanship for a full 7 years.· ETL/CSA Certified - Meets all US and Canadian electrical safety standards - 120V, 20 amp plug