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Thermory 1×4 SHP Thermo-Aspen Bench, Backrest, and Skirt Sauna Wood
Price range: $5.09 through $254.50Thermory Thermo-Aspen 1×4 SHP Bench material is the perfect smooth, cool timber to feel against bare skin. Because it doesn’t secrete resin, splinter or overheat, aspen makes for an ideal sauna material. The color of thermally modified aspen is an attractive golden brown. Thermally modified wood resists rotting, expansion, contraction, warping, and cupping. Recommended Uses: Sauna benches, backrests, and skirting.
1×4 Bench Boards are an easy and low-cost way to build a premium sauna bench framed with standard 2x4s and decked with these.83″ thick boards either horizontally or vertically. See below for our framing suggestion.
Thermo-Alder Wall Paneling 1×5 STS4 – Sauna Wall and Ceiling Wood By Thermory
Price range: $5.41 through $324.60Wide plank 1×5 thermo-alder is an exceptional sauna wall material that can be installed vertically or horizontally. The natural brown tone provides a classic, upscale sauna look. Thermally modified alder is one of the best-performing sauna woods, with a warm tone, unbeatable performance, and timeless appeal. The minimal expansion and contraction of Thermo-Alder allows for tight transitions without molding.
Modern, Thermally Modified Magnolia | STS10 Shadow‑Line Wall Paneling
Price range: $9.36 through $671.56Thermally modified magnolia sauna wood with the STS10 shadow-line profile for wide-plank sauna walls and ceilings. Choose 1×6 (5.4″ face coverage) or 1×7 (6.4″ face coverage); both.59″ thick, smooth and unoiled, installed with hidden staples. Free samples available.
1X4 Alder STS4 T&G Wall Cladding – Sauna Wood by Thermory
Price range: $3.62 through $217.20Coveted in Finland and worldwide, European alder brings timeless elegence to your sauna with its distinctive reddish tone and inviting texture. This premium 1×4 natural profile offers excellent thermal properties (0.12 W/m·K) and sound absorption, creating the ideal surroundings and conditions for healing heat. Completely untreated and E1 certified for ultra-low emissions, this alder tongue and groove cladding maintains its warm, honey-like fragrance while providing the perfect balance of durability and comfort. Choose this medium-toned Estonian-crafted wood for an authentic sauna experience that harmonizes tradition with European quality standards.
1×4 STS4 By Thermory might just be nature’s perfect sauna companion.
Thermo-Magnolia Wide Sauna Bench Board 5/4×8 SHP
Price range: $18.26 through $730.40These extra-wide bench boards in exquisite thermo-magnolia will add a touch of comfort while enhancing the look of your home. The rich, dark shade is achieved by thermal modification giving magnolia an exclusive, stately finish. Create your dream sauna or high-end sauna space.
If you want to something a little ‘extra’, we think this is the most premium sauna bench material on the market. Magnolia has attractive grain patterns, low thermal conductivity, and resists warping and cupping making it perfect as a wide-plank premium sauna bench material that won’t splinter. This is also the widest plank sauna bench material available in North America, coming in at 7.3″ of actual width.
Dark Thermo-Alder Wall Paneling 1×5 STS4 – Intense Thermal Modification Sauna Wood by Thermory
Price range: $6.87 through $412.20Thermal modification darkens wood, and intense thermal modification darkens wood even more. It also takes the benefits of thermal modification to the next level.
Wide plank 1×5 thermo-alder is an exceptional sauna wall material that can be installed vertically or horizontally. The natural brown tone provides a classic, upscale sauna look. Thermally modified alder is one of the best-performing sauna woods, with a warm tone, unbeatable performance, and timeless appeal. The minimal expansion and contraction of Dark Thermo-Alder allows for tight transitions without molding.
HUUM UKU Surface Mounting Frame | UKU Glass, Mirror and Gold
$103.00Stainless steel bezel that mounts a HUUM UKU Glass, Mirror or Gold control panel flat on the wall, with no recess cut into the wall.
Finnmark FD-5 Sauna Cover | Waterproof Outdoor Cover for the FD-5 Trinity XL
$1,398.00Finnmark’s Trinity manual sets the outdoor rule: any outdoor placement needs a Finnmark cover or a Finnmark custom roof, and the room has to sit under an awning or overhang. This is that cover for the FD-5 Trinity XL, 75 x 64 x 83 in in Avena, matching the exterior published on the FD-5’s own listing. Waterproof Aqualon roof, Sauleda marine canvas sides, two marine-grade #10 zippers, 10 stainless steel snaps, a vertical roll-up door on the right side with three permanently attached ties, and a weather slot for the power cord in the middle of the rear panel.
Finnmark FD-4 Sauna Cover | Waterproof Outdoor Cover for the FD-4 Trinity Hybrid
$1,298.00Finnmark’s Trinity manual sets the outdoor rule: any outdoor placement needs a Finnmark cover or a Finnmark custom roof, and the room has to sit under an awning or overhang. This is that cover for the FD-4 Trinity, 49 x 49 x 83 in in Avena, cut to go over the room’s 48 x 48 x 83 in cabin. Waterproof Aqualon roof, Sauleda marine canvas sides, two marine-grade #10 zippers, 10 stainless steel snaps, a vertical roll-up door on the right side with three permanently attached ties, and a weather slot for the power cord in the middle of the rear panel.
Finnmark FD1 Sauna Cover | Waterproof Outdoor Cover for the FD-1 Infrared Room
$998.00Finnmark’s owner’s manual sets the outdoor rule for the FD-1: any outdoor placement needs a Finnmark cover, and the room has to sit under an awning or overhang. This is that cover, cut to 38 x 38 x 78 in for the FD-1 in Avena. Waterproof Aqualon roof, Sauleda marine canvas sides, two marine-grade #10 zippers, 15 stainless steel snaps, a vertical roll-up door on the left side with three permanently attached ties, and a weather slot for the power cord. Nothing else in the FD line shares the 38 x 38 footprint.
Finnmark Curve | Ergonomic S-Shape Canadian Red Cedar Sauna Backrest (BKRFD-2)
$89.00Works in any infrared or traditional sauna. The Finnmark Curve is a floating, ergonomic S-shaped backrest made from Canadian red cedar. At 15.5 inches wide and 20.5 inches tall, its open slats support the natural curve of your back while allowing heat and air to circulate. No brackets or fasteners are required. Place it on the sauna bench and move it whenever you like. Covered by Finnmark’s limited 5-year residential warranty.
HUUM LS Protective Bedding S | HIVE Flow Mini LS
$562.00Small thermal floor plate on adjustable feet for the HUUM HIVE Flow Mini LS stove, 19.7 x 24.8 in, supporting up to 661 lb. Protects combustible flooring and water-based underfloor heating pipework beneath the stove.
HUUM Protective Floor Plate | HIVE Flow
$106.00Floor plate for HUUM HIVE Flow stoves standing on wood or other combustible flooring, 16.5 x 17.7 in with a 0.8 in upturned edge. The manual states it suits all HIVE Flow heaters.
Harvia WL850 Protective Sheath for Harvia 36 and 36 Duo
$531.00A three-sided black steel sheath for the Harvia 36 and 36 Duo. Harvia’s table gives 3.6 in at the side and rear with it fitted against 19.7 in bare, 16.2 in back on each side, the largest saving of any row in Harvia’s WL sheath table. 22.6 x 22.8 x 35.4 in, 20 lb.
Harvia WL750 Protective Sheath for Harvia Pro 26
$531.00A three-sided steel sheath designed and approved for the Harvia Pro 26. Harvia’s sheath table gives 2.9 in at the side and rear with it fitted and a 1.2 in gap behind the panel; the same stove bare needs 14.8 in on the sides and rear. 19.68 x 22.44 x 35.43 in, 19 lb, ships with its installation manual.
Harvia WL650 Protective Sheath for Harvia Pro 20 ES
$531.00A three-sided steel sheath designed and approved for the Harvia 20 ES Pro/S. Harvia’s sheath table gives 2.5 in at the side and rear with it fitted and a 1.2 in gap behind the panel; the same stove bare needs 11.9 in on the sides and rear. 19.68 x 27.95 x 32.28 in, 23 lb, ships with its installation manual.
Harvia WL590 Protective Sheath for Harvia Pro 20 RS/LS
$539.00A model-specific black steel sheath for the Harvia 20 RS/LS Pro. Harvia’s own safety-distance table drops the side and rear clearance from 11.9 in bare to 2.5 in with the sheath fitted, and asks for 16.7 in at the front instead of 11.9 in. 25.6 x 22.5 x 32.3 in, 18.73 lb, ships with its installation and operation manual.
Harvia WL110 Protective Bedding for Wood Sauna Stoves | 22 x 25 in
$356.00An aluminum-zinc-coated steel plate with adjustable feet that goes under a wood-burning sauna stove. Harvia’s instruction sheet is direct about when it is not optional: “the protective bedding must be used when the stove is installed on e.g. tile floor with a water barrier treatment.” Harvia lists it for its wood-burning stove range with two exceptions, the 20 ES Pro/S and the Linear 22 ES. It measures 22 x 25 in and 2–3 in high, weighs 26.5 lb, and the feet let you level a stove on a floor that slopes to a drain.
Harvia HSP1 Embedding Flange for Harvia Spirit | Stainless Steel
$131.00When a Harvia Spirit is recessed into a bench, the HSP1 is the stainless flange that finishes the opening. Harvia’s description is that it ‘ensures a neat finish and also acts as a thermal radiation shield for your benches’; Note that it protects the bench structures from water and heat and that the stainless steel is easy to keep clean. It measures 22.44 x 17.32 in, weighs 1.43 lb, and is designed, engineered and made in Finland.
SaunaLife S2 Cover
$590.00The SaunaLife S2 Cover is the perfect accessory for protecting your Model S2 Series Immersion Tub. It helps prevent sediment from entering the tub, helping it stay clean and well-maintained for longer use.
HUUM Flange D | DROP Embedding Flange
$322.00Stainless steel embedding flange for HUUM DROP heaters, for installations where the stove sits partly inside the sauna bench. Covers the cut edges of the platform boards.
HUUM Rail C | CLIFF Heater Safety Railing
$409.00Wood safety railing for HUUM CLIFF heaters, enclosing 21.45 x 21.45 in around the heater. Eight bolt-on supports clamp around the heater’s ribs and carry a four-sided wood barrier against accidental contact.
Narvi Stone Cage 250×400 Black | Flue-Mounted Stone Basket for Narvi Wood Stoves
$207.00A black rustproof steel cage, 9.8 in. across and 15.8 in. tall, that holds a column of stones around the connective flue above a Narvi wood stove. Narvi’s reasoning: the heat of the flue gets used better, and the steam lasts longer because the water flows from the cage down onto the heater’s own stones. Cages can be stacked. Stones are not included, and the 4–6 in stones Narvi specifies for the heater basket are too large for the cage.
Harvia SASPO240 Safety Railing for Legend 240 and 300 Wood Stoves
$668.00Heat-treated birch on stainless steel elements, installed directly onto the stove rather than standing on the floor. This is the larger of Harvia’s two full-ring Legend railings, 33.5 in outer diameter with a 23.6 in inner opening, and it covers the Legend PO165, 240, 240 SL, 240 Duo, 300 and 300 Duo. 33.46 in across, 11 lb.
Harvia HL4M
$394.00The Harvia HL4M Safety Rail provides added protection and sophistication to your sauna. The wood design brings a touch of refinement to the black steel exterior of the heater. This rail will help safeguard you from coming into contact with the hot exterior of the heater.
SaunaLife S1 Cover | Insulated Bi-Fold Cover for the S1 Cold Plunge Tub, 39.9 in
$390.00An insulated bi-fold lid for the SaunaLife S1 immersion tub, 39.9 in round and 6.7 in high, in marine-grade vinyl. It folds in half, and two straps wrap around the folded halves and snap together to hold it closed. SaunaLife’s reason for it: superior insulation to help maintain water temperature and reduce energy costs, and a tight-fitting design that keeps leaves and other debris out and helps prevent sediment entering the tub.
Hukka Höyrykivet Soapstone Steam Stone, Single (11053)
$28.00A single Carelian soapstone steam stone for the sauna heater. Hukka: “While traditional sauna stones allow water to evaporate on the surface, the Hukka Höyrykivet Steam Stone features four small chambers that act as a reservoir, holding up to 2.7 oz total of water and sauna fragrance oils.” Each hole takes 0.68 oz. 3.35 × 3.35 × 2.36 in, 2.4 lb. Made in Tuupovaara, Finland.
Hukka Mini SoleJoy Soapstone Foot Massage Ball with Cork Base (16037)
$35.00A 1.77 in Carelian soapstone ball in a 4.13 in natural cork base. Hukka: “Whether you require a hot or cold treatment, you can put the stone ball into the freezer or oven to ensure the proper hot or cold temperature as you need it. Once the appropriate temperature is attained, simply place the ball onto the cork base then roll your foot over and around in a circular motion.” 0.44 lb. Made from Finnish Carelian soapstone.
Hukka Maininki Soapstone Sauna Thermometer & Hygrometer (11016)
$98.00One Carelian soapstone plate carrying two dials, temperature and relative humidity. Hukka’s product name for part 11016 is “Sauna Celsius Thermometer & Hygrometer, Droplet”, the temperature scale is Celsius. 7.48 × 6.77 × 1.14 in, 2.29 lb. Made in Tuupovaara, Finland.
HUUM UKU Control Panel Cable | 33 ft, SP0035
$82.0033 ft replacement low-voltage cable that connects the HUUM UKU display panel to the main module. Not returnable.
HUUM Rail S | STEEL Heater Safety Railing
$409.00Wood safety railing for HUUM STEEL heaters. Stainless supports clamp to the heater body and the light wood profiles form a barrier that keeps accidental contact away from hot steel.
HUUM WaterEx | HIVE Wood Water Heat Exchanger
$211.00HUUM water heat exchanger for HIVE wood-burning sauna stoves. Heats water while the sauna is being heated, with 3/4 in NPT male pipes for the water tank. Mounts on the stove’s rear edge or on the sides.
HUUM Mounting Collar L | HIVE Flow LS Through-Wall Collar
$416.00Large stainless steel through-wall mounting collar for the HUUM HIVE Flow LS stove, adjustable for walls 4 to 6 in thick. For non-combustible walls only. HIVE Flow Mini LS uses the separate small collar.
Narvi Protective Wall 650×1150
$380.00With the help of protective walls, the sauna heater can be safely placed closer to the sauna walls. This is a great way of saving space and gives you more opportunities to place the sauna heater in the desired spot. By using protective walls, protective distances can decrease by 50%. The protective walls can be used with sauna heaters and light fireplaces.
Narvi Flue 15 | Kota Basic Insulated Chimney Kit for 4.7 in Sauna Stove Flues
$995.00Narvi’s insulated modular chimney for wood-burning sauna stoves, model Kota Basic Flue 15 black light 255/120×1500 with a straight rubber flange. The insulated flue is 10 in. in diameter and the uninsulated stainless start pipe below it is 4.7/4.8 in, which Narvi states is “compatible with all sauna stoves that have a smoke output diameter of 4.7 in.” Zinc-coated steel casing in black heat-resistant paint, CE certified, 59.5 lb.
Harvia WP250LD Legend Pipe-Mounted Water Heater | 6.6 Gallon with Stone Face
$989.00A 6.6 gal water heater with the smoke pipe running through the tank, and a stone space on the front holding about 33.1 lb of 2–4 in split-face stones. Harvia’s manual gives 19.7 in minimum safety distance for an uncovered pipe and 9.9 in when the radiation protection supplied in the package is used. 14.2 x 14.2 x 35.9 in, 24 lb. Sauna stones sold separately.
Harvia HL3L Safety Rail for Virta Combi HL110S/SA | Wood
$351.00The deep rail in Harvia’s Virta family: 22.6 in wide, 23.5 in deep, 3.9 in high, wood, CE and EAC certified. Harvia’s railing sheet lists the HL3L against the Virta Combi HL110S and HL110SA, and the 10.5 kW Virta Combi we sell is the HL110SA, an exact model-code match rather than a family guess. Ships as rail plus installation manual.
Rento Hydrating Shampoo, Blueberry | 13.5 fl oz Sauna Shampoo (637605)
$17.00Rento’s 13.5 fl oz sauna shampoo with a light blueberry fragrance, suitable for all hair types. Rento describes it as “a caring shampoo with a long-lasting refreshing and moisturizing effect” that “increases manageability of the hair and reduces static”. The declared ingredient list is led by aqua, sodium laureth sulfate and cocamidopropyl betaine. Crafted in Finland.
Rento Refreshing Conditioner, Arctic Pine | 13.5 fl oz Sauna Hair Conditioner (636419)
$17.00Rento’s 13.5 fl oz sauna hair conditioner in Arctic Pine, suitable for all hair types. Rento describes it as “a conditioner with a long-lasting refreshing and moisturizing effect” that “increases manageability of the hair and reduces static”. The declared ingredient list is led by aqua, cetearyl alcohol and cetrimonium chloride. Crafted in Finland.
Rento Sauna Scent, Winter Spices | 13.5 fl oz Löyly Water Concentrate
$13.00Add some scent to a sauna bucket and throw water on a hot sauna stove for aromatic steam. Winter Spices is a spicy aroma for the cool season and dark evenings, full of warmth and ambiance.
Rento Pino Sauna Seat Cover | Jacquard 100% Cotton, 20 × 24 in, Coal Black (314846)
$18.00A jacquard-woven 100% cotton sauna seat cover, 19.7 × 23.6 in, 0.2 lb, in coal black. Rento: “The high-quality jacquard-woven single sauna seat cover will retain its shape and beautiful pattern wash after wash. Soft, light cotton is a perfect material for the sauna! It feels cool against the skin, absorbs moisture well and dries quickly.” Crafted in Finland.
Rento Kenno Sauna Bath Towel | 71 × 35 in, Chambray Border, Dark Blue (630135)
$38.00An oversized Finnish sauna bath towel, 70.9 × 35.4 in, with chambray borders, in dark blue. Rento: “Kenno sauna textiles are made of recycled cotton, giving the fabric a natural softness and vibrant texture.” Fiber content is 70% recycled cotton and 30% recycled polyester. 1.1 lb. Crafted in Finland.
HUUM UKU Door Sensor | SP0032
$82.00Replacement door sensor and magnet for HUUM UKU controls. Part of the remote-start safety system, and it stops the heater working against an open door. Not returnable.
HUUM Reflect S | STEEL Heater Reflector Panel
$294.00Stainless steel reflector panel that hooks onto the side of a HUUM STEEL heater. HUUM says it makes it possible to achieve half smaller safety distances from the walls. Sold as a single panel; reflectors can be connected to each other.
HUUM Flange CS | CLIFF & STEEL Embedding Flange
$331.00Stainless steel embedding flange for HUUM CLIFF and STEEL heaters, covering the cut wooden edges when the heater is set partly into the sauna platform. Fits a 16.7 x 16.7 in opening. Not for the Mini versions of either range.
HUUM LS Protective Bedding L | HIVE Flow LS
$647.00Large thermal floor plate on adjustable feet for the HUUM HIVE Flow LS stove, 21.6 x 26.7 in, supporting up to 661 lb. Protects combustible flooring and water-based underfloor heating pipework beneath the stove.
KOLO Bucket 2 Sauna Bucket | 5 L Aluminum, Curved Bamboo Handle, Black (29002)
$97.00The KOLO Bucket 2 is an aluminum sauna bucket with a curved bamboo bentwood handle, listed by KOLO at 1.5 gallons. It stands 8.66 in tall on a 9.84 in diameter and weighs 1.76 lb empty. Package contents are the bucket and handle; the KOLO Ladle 2 is a separate part. Designed and engineered in Finland, in black.
Narvi Installation Base 550×620 Black | Adjustable Floor Base for Narvi Wood Stoves
$357.00A rustproof steel base, 21.7 x 24.4 in., with legs that adjust from 2.8 to 3.7 in. Narvi’s manuals make a base mandatory in two named cases: a floor of combustible material or a tiled floor, and any floor with underfloor heating pipes or cables beneath the stove. On a sloping floor the adjustable legs are also what levels the stove. 16.5 lb, black, designed and made in Finland.
Saunum Air L Safety Rail
$472.00The sturdy and attractive Saunum Air L Safety Rail protects sauna bathers from accidental contact with the sauna heater. Precision hand-crafted from bentwood birch plywood and stainless steel. Compatible with Saunum Air L sauna heaters.
Harvia WP220ST Pipe-Model Water Heater | 5.8 Gallon Stainless Steel
$727.00A 5.8 gal stainless water heater that sits on top of a wood stove with the smoke pipe running through it. Harvia’s manual is explicit that this makes it fast: the water usually starts to boil while the stove is being heated. Harvia states it is compatible with all wood-heated Harvia stoves except the Harvia 50. 13.97 x 7.48 x 16.14 in.
Prebuilt
Sauna Brushes
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