ERGO Series Sauna Barrel 59"D x 81"H (Diameter) Rear Window The SaunaLife ERGO-Series Outdoor sauna barrels were designed and engineered by sauna enthusiasts to be the most comfortable, durable, and attractive barrel saunas you can buy. Thermo-Spruce materials (lasts up to 2X longer than Cedar) Designed for ergonomic sauna bathing experiences Engineered for simple DIY installation (1-day, 2-persons) Industry-leading wall, bench, and backrest material thicknesses Panoramic half-moon rear window Superior thermal resistance (R-value) Curved Thermo-Aspen benches for bather comfort Premium arched backrest for all body sizes Dual floor drains for effective water elimination Black shingle roof kit for weather-tight installation Roof drip edge for rainwater management Tempered bronze glass (5/16" thick) Enhanced bathing ambiance with E SCONCE+ and E MOOD lighting upgrades Heavy-duty stainless steel barrel bands (1-7/8" wide x 1/8" thick) Paraffin oil is provided to enrich and preserve sauna barrel luster Extra Thermo-Spruce staves to ensure success (2) Exterior dimensions - 59" long and 81" diameter Interior dimensions - 51" long and 77" diameter Designed by SaunaLife and handcrafted in Northern Europe Thermo-Spruce Barrel Sauna Advantages Lasts up to 2X longer than Cedar Superior thermal resistance (R-value) White LED Light System with Wi-Fi App Dottless white glowing LED lighting Wi-Fi, app-based operation capability Wireless handheld remote (IP20) and control mounting cradle Water and heat heat-ratedand wire connections (IP67) Flush or articulating mounting clips to set the ideal scene Low voltage (24-volt DC) operation for bathing safety 30' light cable (IP67) to suit all installation applications Expandable to control up to four white LED light sources (see E SCONCE+ Package) Full-length Thermo-Spruce staves (1.65" thick) Benches of Thermo-Aspen (1.1" bench tops, no knots) Backrest of Thermo-Aspen (1.1" rests, no knots) Panoramic half-moon rear window Paraffin oil, 16.9 oz bottle (500ml) White LED Light System with Wi-Fi App Wireless handheld remote & mounting cradle Mounting clips, articulating (3)