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The Garden Sauna sauna has a classic beauty in its elegant simplicity. Our Garden sauna are constructed with tongue and groove thermowood staves. This interlocking system allows the wood to expand and contract naturally, and to form a tight seal. Not only is our Garden saunas lovely to look at, their design is incredibly energy efficient and helps to distribute the heat evenly throughout the interior.
Thermowood is created by heat treating Scandinavian softwood to temperatures ranging from 180 – 230° in special chamber kilns for up to 96 hours. Steam is used as a protective gas and helps to prevent the wood from splitting and becoming damaged during treatment.
Thermowood’s Characteristics & Qualities
This process causes chemical and structural changes to occur within the timber, which therefore alters some of its characteristics and qualities. Some of the characteristics and qualities that make Thermowood such a popular specie includes:
Dimensionally 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. 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. The wood also doesn’t secrete sap or resin even in high temperatures.
Environemntally 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.
Resistance to Rot and Fungi – Due to the heating process breaking down hemicellulose, the wood doesn’t contain the appropriate nutrients to allow rot and fungi to grow and develop.
Increased Longevity – When wood is treated with heat, its average life span is prolonged meaning your sauna will last a lifetime!
Improved Insulation – Wood that has been heat treated is much more porous than untreated wood, vastly improving its insulating properties.
Harvia is the world’s leading sauna heater manufacturer and Harvia heaters are considered the industry gold-standard. Harvia is was established in Finland in 1950 and has built an international reputation for exceptional quality. With a Harvia heater, you know you are getting a reliable product that you and your family can trust. All our Harvia sauna heaters are ETL certified and are manufactured in Finland. Our heaters are made from stainless steel and coated with a red enamel on the exterior. Our Harvia heaters come with a 5 year limited warranty.
Please note the 8kw heater included with this sauna is a Harvia FLB/KIP series wall-mounted sauna heater. This is different than the heater pictured in the main product photos above. A photo of the heater included with this sauna is shown as a standalone product image.