Heater Accessories
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 results
Cozy Heat Chimney Cover Grid H500
$549.00Carry 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.
Cozy Heat Chimney Cover Grid H680
$594.00Give 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.
Cozy Heat Chimney Cover OG H500
$715.50Continue 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.
Cozy Heat Chimney Cover OG H700
$787.50Let 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.
Cozy Heat Chimney Cover Quattro H500
$715.50Keep 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
$715.50Keep 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 SW H700
$787.50Finish 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 COZY FIRE Outdoor Fire Pit
$1,570.50Bring 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.
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.
Harvia HL3M Safety Rail for Virta HL110, HL70SA and HL90SA | Wood
$341.00The middle rail in Harvia’s Virta family: 22.6 in wide, 20.6 in deep, 3.9 in high, wood, CE and EAC certified. Harvia’s railing sheet lists the HL3M against the Virta HL110, HL70S, HL70SA, HL90S and HL90SA, the 10.5 kW Virta and the steam-equipped Combi models, and it is specified ‘for use with Virta HL110/HL70SA/HL90SA’. Ships as rail plus installation manual.
Harvia HL3S Safety Rail for Virta HL70 and HL90 | Wood
$330.00The shallow rail in Harvia’s Virta family: 22.6 in wide, 17.8 in deep, 3.9 in high, in wood, CE and EAC certified. Harvia’s railing sheet lists the HL3S against the Virta HL70 and HL90, and it is specified ‘for use with Virta HL70/90’. Harvia’s own line is that the wood design ‘will help protect you from coming into contact with the hot exterior of the heater’, that is the whole job. Ships as rail plus installation manual.
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.
Harvia HPC2 Embedding Flange | Cilindro 6 and 8 kW, Stainless Steel
$210.00The flange is what turns a heater sitting on a bench into a heater built into one. Stainless steel, 19.7 inches across, made for the 6 and 8 kW Cilindro. It shields the surrounding timber from radiant heat, which is what lets the cut-out sit close to the heater body instead of standing off at a safe but ugly distance. The finished detail is a clean surface with a cylinder rising through it.
Harvia HPC3 Safety Railing | Cilindro 6 and 8 kW, Heat-Treated Birch
$274.00A Cilindro is a cylinder of hot steel standing at shin height in a small dark room, and the first time somebody stands up too fast next to one they find that out. The HPC3 is Harvia’s own guard for the 6 and 8 kW Cilindro: four heat-treated birch arches held off the heater on stainless steel mounts, 20.1 inches square. It keeps skin off the shell without hiding the heater, and the birch reads as part of the room rather than as safety equipment bolted on.
Harvia HPC7 Embedding Flange | Cilindro 10.5 kW, Stainless Steel
$204.00Dropping a Cilindro through the bench is the detail that makes a sauna look designed rather than assembled. The HPC7 is the stainless steel collar that makes it possible on the 10.5 kW model: it lines the cut-out, shields the surrounding timber from radiant heat, and lets the hole be only slightly larger than the heater itself, so the finished result reads as one continuous surface with a heater rising out of it.
Harvia HPCU4LUL LED Safety Railing | Cilindro 10.5 kW, Birch
$574.00This 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.
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.
Harvia HSP3M Safety Railing for Harvia Spirit | Heat-Treated Birch
$267.00A bar of black-painted heat-treated birch on stainless steel brackets that fastens directly to a Harvia Spirit. Harvia’s own line is that the birch surface is always safe to touch. It measures 21.5 x 17.7 x 5.1 in and weighs 4.4 lb. Specified for the Spirit SP60/90.
Harvia SAA00101 Sauna Drip Tray | Steel, for Floor-Standing Heaters
$87.00Water misses the stones. It happens to everybody, usually around the third ladle, and it lands on the floor under the heater. The SAA00101 is Harvia’s steel catch tray for floor-standing heaters: 17.2 inches wide, 15.2 deep, and nine tenths of an inch tall, so it sits under the base instead of announcing itself. Steel, black, 3.1 pounds. It is the kind of part nobody adds to the first order and most people want by the second winter, so we would rather you saw it now.
Harvia SASL2M Autodose Design Pipe | Black, Wall-Integrated
$375.75The nicest sauna interiors hide their plumbing. This is the piece that lets an automatic water dosing system feed the stones without a length of tube running down your wall. A black steel pipe just under 24 inches long, fitted with a low-profile nozzle, mounted above the heater and fed through the wall panel from behind. The Autodose unit itself is a separate purchase. This is the part people forget to order, then wish they had, once the panels are up and the wall is closed.
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 WHM22 Rubber Rain Collar for Tilted Roofs (Rain Flange, Black)
$222.00Genuine Harvia (SPWHM22) tilted rubber rain flange, replacement weather seal for WHP steel chimneys on pitched roofs. Black rubber. Non-returnable replacement part.
Harvia WHM24 Rain Collar for Flat Roofs & Barrel Saunas (Symmetric Rain Flange, Black)
$260.00Genuine Harvia (SPWHM24) symmetric rubber rain flange, replacement weather seal for WHP steel chimneys on flat roofs and barrel saunas. Non-returnable replacement part.
Harvia WHM25 Chimney Vapor Barrier
$300.00Vapor-barrier plate that seals the ceiling penetration around a Harvia WHP steel chimney. Stops moisture from entering the roof structure and cuts heat loss. 50 × 19.7 in plate, 8.3 in opening.
Harvia WHP-AS Chimney Roof Accessory Kit for Tilted Roofs, Stainless Steel
$461.00Complete 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 WHP-ASSYM Chimney Roof Accessory Kit for Flat Roofs & Barrel Saunas, Stainless or Black
$461.00Complete 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.
Harvia WHP1000 Sauna Wood Stove Chimney Extension, 39.4 in, Stainless or Black Steel
Price range: $614.00 through $651.0039.4 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.
Harvia WHP1000500 Sauna Chimney Package for Flat Roofs & Barrel Saunas, Stainless or Black
Price range: $1,290.00 through $1,458.00Complete 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.
Harvia WHP270 Insulated Smoke Damper for Steel Chimneys, Stainless or Black
Price range: $372.00 through $453.00CE-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).
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 WL200 Protective Sheath for Legend Wood-Burning Stoves
$399.00A 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.
Harvia WL300 Smoke Pipe Cover for Legend Series Wood-Burning Stoves
$372.00Stone-fillable smoke-pipe guard for Harvia Legend wood-burning stoves. When properly filled with about 88 lb of sauna stones, it reduces the required clearance from the WL300 cover to combustible walls and benches to 6.5 in. Adds thermal mass and matches the Legend design. 22.05 in tall; accepts smoke pipe up to 4.53 in.
Harvia WL300PC Chimney Cover for Cilindro Wood-Burning Stoves, Chrome
$148.00Chrome steel chimney cover for Harvia Cilindro wood-burning stoves. Filled with 4–6″ stones it absorbs radiant heat and considerably reduces required safety distances. 20″ tall, 41.9 lb stone capacity.
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 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 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 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 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.
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 WX237 Temperature Sensor Cable | 30 ft Extension
$57.00The cable that comes in the box is fine until the control panel ends up on the far side of the changing room. This is the 30 foot Harvia sensor extension: colour-coded conductors so an electrician can land them without guessing, and an outer jacket built for the run between a hot room and a dry-side panel. Order it with the heater. Discovering you are eight feet short on install day is a wasted trip for somebody.
Harvia WZ Smoke Pipe, 4.6 in, for Wood-Burning Sauna Stoves (7.9 in, 19.7 in, 3.3 ft)
Price range: $101.00 through $212.00CE-certified 4.6 in (4.5″) Harvia smoke pipe connecting wood-burning sauna stoves to the chimney. Three lengths (7.9 in / 19.7 in / 3.3 ft) in stainless or black steel. Fits all Harvia wood stoves except the Harvia 50.
Harvia WZ020115 Lead-Through Flange for Smoke Pipes
$81.00Stainless lead-through flange that collars a 4.6 in Harvia smoke pipe where it passes through a wall or ceiling, blocks smoke leakage, shields against heat, and finishes the penetration.
Harvia WZ115030SP Damper Plate for Wood-Burning Sauna Stoves
$165.00Stainless damper plate for the 4.6 in smoke pipe of Harvia wood-burning stoves. Regulates draft, slows the burn rate, and keeps more heat in the sauna. 13 in section.
Harvia WZ115120 Reducing Pipe, 4.6 in, Stainless Steel
$75.00Stainless reducing pipe that joins a smaller pipe to a larger one in the Harvia 4.6 in sauna chimney system, a precise, sealed transition for reliable draft.
Harvia Xenio CX170 Wi-Fi Control System
$1,035.00Wi-Fi control for compatible Harvia electric heaters. Set the temperature, schedule a session, and start the room from your phone.
Harvia Xenio CX45 Wi-Fi Control System
$1,292.00Wi-Fi digital control system for larger Harvia electric sauna heaters, rated up to 17 kW. Single- or three-phase.
HUUM Cage HSTV | Stone Cage for Wood-Burning Stoves
$396.00Stainless 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.
HUUM Drip Tray | DROP Series
$126.00Drip tray for HUUM DROP series heaters. Sits under the heater to catch water running off the stones so it does not pool on the sauna floor.
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 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.
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