The wood also doesn’t secrete sap or resin even in high temperatures.Įnvironemntally Friendly – The softwood used to produce Thermowood originates from well-managed, PEFC-certified forests, and as no chemicals or foreign substances are involved during its production, Thermowood is an environmentally friendly material produced by using only natural methods. Thermowood therefore doesn’t react to changes in humidity as drastically as untreated wood (the risk of swelling, cracking and shrinkage is decreased), allowing it to retain its shape far better. Some of the characteristics and qualities that make Thermowood such a popular specie includes:ĭimensionally Stable – The intensive heat the wood is exposed to during its production dries out deep into the core, causing all moisture and resin to be removed from the timber. This process causes chemical and structural changes to occur within the timber, which therefore alters some of its characteristics and qualities. Learn more about thermowood in our FAQ section! Thermowood’s Characteristics & Qualities

Steam is used as a protective gas and helps to prevent the wood from splitting and becoming damaged during treatment. Thermowood is created by heat treating Scandinavian softwood to temperatures ranging from 180 – 230° in special chamber kilns for up to 96 hours. Our saunas will heat up to 195 F in under an hour, and can be enjoyed either wet or dry, catering to a true Scandinavian sauna experience. Have questions about our cube saunas? Call us now on 18.Įvery Redwood Outdoors Cube Sauna kit comes complete with a Harvia electric heater, wooden heater guard, water bucket & ladle, sauna rocks, and interior seating benches.

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