Accessories are where a sauna install stalls. The heater is on the pad, the room is clad, and the whole thing waits three weeks on a flue adapter nobody knew was needed. So we stock the small parts: stones, controls, chimney sections, clearance shields, safety rails and replacement elements for the heaters we sell.

Flue size is what we catch most. Harvia wood-burning stoves ship with 4.5 inch European pipe, so North American 6 inch pipe needs an adapter, and that is a part you want in the same box as the stove. Chimney kits, smoke pipes and roof fittings have their own section.

Clearances are the other one. A protective sheath lets a wood stove sit closer to combustible material than it otherwise could, and the stainless HIVE Reflector cuts wall-side clearance on HUUM’s round basket, both only in the configurations your current heater manual allows. Read the manual, not the internet, and when you are unsure round the clearance the safe way.

Stones ship with a heater order so we can match size and count to your model. Counts and sizes are model specific, so read your heater’s data label first rather than buying by the box.

Two more that get ordered late. A HUUM heater rated 12 kW or above needs the UKU extension box, and a panel extension cable moves a Xenio or Fenix controller well away from the heater. Both are separate orders.

Tell us your heater model at (844) 565-1113 and we will give you the part number.

Showing 1–50 of 106 resultsSorted by price: high to low

Filter by price

    Saunum AirSolo

    Price range: $1,995.00 through $2,495.00
    AirSolo 70
    AirSolo 80
    AirSolo Wall

    The Saunum AirSolo series enhances your sauna experience by offering a balanced, consistent heat and steam from head to toe, eliminating cold spots, with the help of its patented air blending system. Whether you opt for the Wall, 70, or 80 model, each comes with Himalayan salt spheres that sit in its airflow. These sleek, Scandinavian-designed devices, available in Wall-Mounted or In-Wall installations, are compatible with any electric sauna heater and fit cleanly into large and small spaces.

    Note: This is NOT a heater, but is designed to improve any sauna. Check out The Saunum Air for the complete package.

    This product has multiple variants. The options may be chosen on the product page

    HUUM UKU Sauna Control | Local & Wi-Fi Packages

    Price range: $1,062.00 through $1,987.00

    HUUM UKU is the control system for current HUUM electric heaters and many compatible third-party heaters. Choose Local for on-panel operation or Wi-Fi for app control, scheduling, and remote start. Available U.S. packages are Local Black, Local Wood, Wi-Fi Black, Wi-Fi Wood, Wi-Fi Glass, Wi-Fi Mirror, and Wi-Fi Gold.

    This product has multiple variants. The options may be chosen on the product page

    Harvia Chimney Kit in Black or Stainless Steel – WHP4921.3 ft

    Price range: $1,487.00 through $1,578.00

    Contains black powder coated (or stainless steel) chimney, utility box, non-insulated smoke pipe, rain cap, rubber rain flange, installation set for rain flange, stainless steel lead-through flange for ceiling, lead-through insulation and protector, installation manual.

    This product has multiple variants. The options may be chosen on the product page

    Cozy Heat COZY FIRE Outdoor Fire Pit

    $1,570.50

    Bring Cozy’s stone-cage look out to the fire circle. COZY FIRE places a natural wood flame inside a double iron mesh wall designed to hold about 55 lb of decorative stone. The cage screens some direct radiant heat and turns the fire into a 30 in wide, 26 in high centerpiece instead of a bare steel bowl. Stones are separate. Use it outdoors on a stable noncombustible surface and follow local fire rules.

    HUUM Barrel Sauna Chimney Kit for HIVE Wood & HIVE Flow

    $1,559.00

    HUUM chimney package arranged for barrel-sauna roof geometry and current HIVE Wood or HIVE Flow stoves. HIVE Heat compatibility is retained only for installed-base reference; new projects should use a current HUUM stove and exact current manual.

    Harvia Fenix Upgraded Sauna Controller

    Price range: $595.80 through $1,551.00

    Harvia Fenix Control series offers Wi‑Fi enabled 4.3″ touchscreen controls for Harvia sauna heaters and Virta Combi units. Models FX30‑U1‑U3‑XC (7 kW at 240 V/10.5 kW at 208 V), FX45‑U1‑U3‑XC (11 kW at 240 V/15 kW at 208 V), FX30C‑U1‑XC (10.8 kW combi) and FX30C‑U3‑XC (12.7 kW combi) provide remote control via the MyHarvia app; combi versions also manage the integrated steamer.4 variations

     

    This product has multiple variants. The options may be chosen on the product page

    Harvia WHP1000500 Sauna Chimney Package for Flat Roofs & Barrel Saunas, Stainless or Black

    Price range: $1,290.00 through $1,458.00

    Complete Harvia steel chimney package for flat-roof and barrel saunas: WHP1000500 insulated chimney plus the symmetric roof accessory kit (rain cap, flange, smoke pipe, lead-through set). Stainless or black.

    This product has multiple variants. The options may be chosen on the product page

    Saunum AutoLeil Automatic Water Dispensing Unit

    $1,441.00

    Enhance your sauna experience with the innovative Saunum AutoLeil, a smart, self-learning device that automatically controls water supply to your heater, creating and maintaining an even sauna climate according to your preferences. In a modern relaxation sauna, all you have to do is simply enjoy a good, moist sauna, with no need to throw water on the heated stones yourself.

    • Easy Install
    • Pre-set 3 different types of steam
    • Automatic humidity control mode
      • sets the target room temperature (104–212 °F) and relative humidity (10–60% depending on temperature) to specific values.

    HUUM Thru-Ceiling Chimney Kit for Wood Sauna Stoves

    $1,342.00

    HUUM’s straight-up thru-ceiling chimney package for current HIVE Wood and HIVE Flow sauna stoves. Final component count, roof geometry, clearances, support, weather sealing, and local approval must be confirmed for the exact project before installation.

    Saunum AirIQ Wi-Fi Control System

    $1,295.00

    The best time to plan AirIQ is before the sauna wall is closed. This is the Wi-Fi touchscreen control system for compatible U.S. Saunum Air, Air L, and Air Perfect heaters. It manages 104–194°F temperatures, three saved sauna profiles, weekly scheduling, three fan speeds, ready alerts, and remote control through the Saunum app. AirIQ uses 2.4 GHz Wi-Fi, requires licensed-electrician installation, and the panel belongs outside the sauna room. Heater sold separately; contact us before a retrofit so we can verify the exact model and cable plan.

    Harvia Xenio CX45 Wi-Fi Control System

    $1,292.00

    Wi-Fi digital control system for larger Harvia electric sauna heaters, rated up to 17 kW. Single- or three-phase.

    HUUM UKU Wi-Fi Main Module | SP0030

    $1,258.00

    Replacement main module for the HUUM UKU Wi-Fi control system, the switching and connectivity box that sits between the panel, the sensors and the heater. Not returnable.

    Harvia Xenio CX170 Wi-Fi Control System

    $1,035.00

    Wi-Fi control for compatible Harvia electric heaters. Set the temperature, schedule a session, and start the room from your phone.

    Narvi Flue 15 | Kota Basic Insulated Chimney Kit for 4.7 in Sauna Stove Flues

    $995.00

    Narvi’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

    $989.00

    A 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.

    Cozy Heat Chimney Cover SW H700

    $787.50

    Finish the tallest SW with a taller cover. This 18 kW cover continues the SW stone-column effect where a longer chimney section stays in view. At 27.6 in high, the Cozy Heat Chimney Cover SW H700 adds room for about 82 lb of stone and fits SW 18 kW (including TW), not every Cozy model. Use the exact drawing before ordering, and plan sauna stones separately unless the selected cart line explicitly says they are included.

    Cozy Heat Chimney Cover OG H700

    $787.50

    Let the larger OG finish at full height. This taller cover carries the flared OG profile farther up the exposed chimney on 18 kW installations. At 27.6 in high, the Cozy Heat Chimney Cover OG H700 adds room for about 132 lb of stone and fits OG 18 kW (including TW), not every Cozy model. Use the exact drawing before ordering, and plan sauna stones separately unless the selected cart line explicitly says they are included.

    HUUM UKU Extension Box

    $773.00

    Power extension box required for HUUM sauna heaters rated 12 kW and above, used with the UKU control system.

    Harvia WP220ST Pipe-Model Water Heater | 5.8 Gallon Stainless Steel

    $727.00

    A 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.

    Cozy Heat Chimney Cover Quattro H500

    $715.50

    Keep the Quattro square all the way up. The compact Quattro cover carries its horizontal bars and crisp footprint around the exposed flue. At 19.7 in high, the Cozy Heat Chimney Cover Quattro H500 adds room for about 66 lb of stone and fits Quattro, 12 or 18 kW (including TW), not every Cozy model. Use the exact drawing before ordering, and plan sauna stones separately unless the selected cart line explicitly says they are included.

    Cozy Heat Chimney Cover SW H500

    $715.50

    Keep the SW wave moving upward. The compact SW cover echoes the heater's vertical wave pattern around the lower exposed chimney. At 19.7 in high, the Cozy Heat Chimney Cover SW H500 adds room for about 44 lb of stone and fits SW, 12 or 18 kW (including TW), not every Cozy model. Use the exact drawing before ordering, and plan sauna stones separately unless the selected cart line explicitly says they are included.

    Cozy Heat Chimney Cover OG H500

    $715.50

    Continue the OG's flare above the heater. The compact OG cover repeats the sculpted cage language instead of placing a bare round pipe over it. At 19.7 in high, the Cozy Heat Chimney Cover OG H500 adds room for about 88 lb of stone and fits OG, 12 or 18 kW (including TW), not every Cozy model. Use the exact drawing before ordering, and plan sauna stones separately unless the selected cart line explicitly says they are included.

    Harvia SASPO240 Safety Railing for Legend 240 and 300 Wood Stoves

    $668.00

    Heat-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 WHP1000 Sauna Wood Stove Chimney Extension, 39.4 in, Stainless or Black Steel

    Price range: $614.00 through $651.00

    39.4 in (39.3″) insulated extension for Harvia WHP steel chimneys. Grooved locking joints resist heat-cycle movement; stainless or black steel; indoor or outdoor install; made in Finland.

    This product has multiple variants. The options may be chosen on the product page

    HUUM LS Protective Bedding L | HIVE Flow LS

    $647.00

    Large 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.

    Cozy Heat Chimney Cover Grid H680

    $594.00

    Give an 18 kW round-cage stove a taller chimney finish. This taller Grid cover extends the open mesh profile when more of the chimney remains visible. At 26.8 in high, the Cozy Heat Chimney Cover Grid H680 adds room for about 132 lb of stone and fits Standard and O, 18 kW (including TW), not every Cozy model. Use the exact drawing before ordering, and plan sauna stones separately unless the selected cart line explicitly says they are included.

    Harvia HPCU4LUL LED Safety Railing | Cilindro 10.5 kW, Birch

    $574.00

    This is the railing that doubles as the room’s light. Four heat-treated birch arches on stainless mounts, sized for the 10.5 kW Cilindro, with LEDs built into the frame that throw their light at the heater rather than at you. The steel shell bounces it back indirectly, so the heater glows softly from behind its own guard and you get safety and atmosphere out of one part. 14.2 inch diameter.

    HUUM LS Protective Bedding S | HIVE Flow Mini LS

    $562.00

    Small 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.

    Cozy Heat Chimney Cover Grid H500

    $549.00

    Carry the open round cage above the stove. The compact Grid cover keeps the Standard or O silhouette moving up the first exposed chimney section. At 19.7 in high, the Cozy Heat Chimney Cover Grid H500 adds room for about 88 lb of stone and fits Standard and O, 12 or 18 kW (including TW), not every Cozy model. Use the exact drawing before ordering, and plan sauna stones separately unless the selected cart line explicitly says they are included.

    Harvia WL590 Protective Sheath for Harvia Pro 20 RS/LS

    $539.00

    A 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 WL850 Protective Sheath for Harvia 36 and 36 Duo

    $531.00

    A 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

    $531.00

    A 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

    $531.00

    A 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.

    HUUM Protective Bedding L | HIVE Wood Stove Floor Bed

    $517.00

    Large HUUM protective floor bed for HIVE wood-burning sauna stoves, 23.2 x 23.2 in. Protects combustible flooring and liquid-based underfloor heating below the stove. Not for use with LS models.

    Saunum Air Safety Rail

    $495.00

    The sturdy and attractive Saunum 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-Series sauna heaters.

    Saunum Air L Safety Rail

    $472.00

    The 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 WHP-ASSYM Chimney Roof Accessory Kit for Flat Roofs & Barrel Saunas, Stainless or Black

    $461.00

    Complete roof kit for flat roofs and barrel saunas: rain cap, symmetric rain flange and clamp, smoke pipe, lead-through flange, insulation, and protector for Harvia steel chimneys. Stainless or black.

    This product has multiple variants. The options may be chosen on the product page

    Harvia WHP-AS Chimney Roof Accessory Kit for Tilted Roofs, Stainless Steel

    $461.00

    Complete stainless roof kit for taking a Harvia steel chimney through a pitched roof: rain cap, tilted rain flange and clamp, smoke pipe, lead-through flange, insulation, and protector.

    Harvia WHP500 Sauna Wood Stove Chimney Extension, 19.7 in, Stainless Steel

    Price range: $428.00 through $456.00

    This chimney extension is made of a stylish stainless steel and can be installed both indoor and out. The inventive Harvia WHP500 steel chimney extension is designed to prevent movement caused by temperature changes.

    This product has multiple variants. The options may be chosen on the product page

    Harvia WHP270 Insulated Smoke Damper for Steel Chimneys, Stainless or Black

    Price range: $372.00 through $453.00

    CE-marked insulated damper plate for Harvia WHP steel chimneys. Closes the flue after firing to hold heat in the sauna, ideal for winter use. Stainless (WHP270SP) or black (WHP270SPM).

    This product has multiple variants. The options may be chosen on the product page

    HUUM HIVE Flow Mini LS Mounting Collar | Stainless or Black

    Price range: $388.00 through $450.00

    Small mounting collar for HIVE Flow Mini LS where its extended firebox passes through a properly built non-combustible wall. Choose stainless steel (H3018022) or black (H3018032). Full-size HIVE Flow LS uses the separate large collar.

    This product has multiple variants. The options may be chosen on the product page

    HUUM Mounting Collar L | HIVE Flow LS Through-Wall Collar

    $416.00

    Large 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.

    HUUM Rail C | CLIFF Heater Safety Railing

    $409.00

    Wood 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.

    HUUM Rail S | STEEL Heater Safety Railing

    $409.00

    Wood 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.

    Harvia WL450 – Protective Shield for M1, M2, M3, and M3 SL

    $409.00

    The Harvia Protective sheath for M1, M2, and M3 wood burning sauna heaters, including SL models. Allows lower clearances and better protection from combustable building materials. A protective shield is almost always a good idea for a safer sauna experience.

    Harvia M3 Protective Bedding, Black

    $404.00

    Harvia Protective Bedding Fits Nearly All Harvia Stoves from M1 to Harvia Legend.

    HUUM Protective Bedding S | HIVE Wood Stove Floor Bed

    $400.00

    Small HUUM protective floor bed for HIVE wood-burning sauna stoves, 19.7 x 19.7 in. Protects combustible flooring and liquid-based underfloor heating below the stove. Not for use with LS models.

    Harvia WL200 Protective Sheath for Legend Wood-Burning Stoves

    $399.00

    A 39.4 x 20.5 x 5 in black steel panel that shields a combustible wall from a Legend’s radiant heat. Harvia’s installation-options drawing takes the clearance at the stove body from 9.9 in with a bare smoke pipe down to 1.2 in with a WL200 fitted and a WL300 cover on an insulated Harvia chimney, provided the stones are piled so they cover the stove body and smoke pipe completely. Up to three panels can be joined.

    HUUM Flange H | HIVE Embedding Flange

    $397.00

    Stainless steel embedding flange for the full-size HUUM HIVE electric heater, used when the heater is set partly down into the sauna bench. Measures 22.64 in inside diameter and 28.94 in outside diameter.

    HUUM Cage HSTV | Stone Cage for Wood-Burning Stoves

    $396.00

    Stainless stone cage that mounts on a HUUM wood-burning stove around the flue and holds up to 88 lb of extra sauna stones for more thermal mass and more steam surface. Stones sold separately.