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 resultsSorted by popularity
HUUM DROP Replacement Heating Elements | SP0003 1.5 kW & SP0004 2.0 kW
$109.00Current HUUM replacement elements for DROP electric heaters: SP0003 is the 1.5 kW element and SP0004 is the 2.0 kW element. Element counts and combinations are model-specific. Confirm heater data label and the current HUUM element matrix before ordering.
HUUM DROP Heat Diverter, Retainer & Upgrade Kit
$130.00Current DROP heat-management hardware for guiding heat into the room and keeping elements correctly separated. The current DROP heater package already includes its model-appropriate reflector, heat diverter, retainers, and spacers; order this only for a compatible older installation or confirmed replacement need.
HUUM UKU Sauna Control | Local & Wi-Fi Packages
Price range: $1,062.00 through $1,987.00HUUM 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.
Harvia WL450 – Protective Shield for M1, M2, M3, and M3 SL
$409.00The 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 Xenio & Fenix Data-Cable Extension – 65 ft WX319
$144.00Relocate your Harvia Xenio or Fenix control panel up to 65 ft with this plug‑and‑play RJ‑10 extension cable. Genuine Harvia quality ensures reliable connections.
Harvia WZ115155 Wood Stove Pipe Adapter 4.5″ Euro to 6″ USA
$105.00All Harvia wood-burning sauna stoves are equipped with standard European exhaust piping that measures at 4.6 in (4.5″). This adapter is required for North American 6.2 in (6″) piping conversion.
Harvia Chimney Kit in Black or Stainless Steel – WHP4921.3 ft
Price range: $1,487.00 through $1,578.00Contains 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.
HUUM HIVE Safety Rail | Rail H & Rail HM
Price range: $322.00 through $396.00Curved wood safety railing that adds a physical buffer and warm visual detail around HUUM’s round stone baskets. Choose Rail H for full-size HIVE or Rail HM for HIVE Mini.
Harvia M3 Protective Bedding, Black
$404.00Harvia Protective Bedding Fits Nearly All Harvia Stoves from M1 to Harvia Legend.
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 Fenix Upgraded Sauna Controller
Price range: $595.80 through $1,551.00Harvia 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
HUUM HIVE Reflector | HIVE & HIVE Mini
Price range: $302.00 through $328.00Stainless-steel reflector panel for reducing the required wall-side clearance of the compatible HIVE heater. Choose Reflect H for full-size HIVE or Reflect HM for HIVE Mini. Use only in the configurations and quantities allowed by the current heater manual.
Saunum AirSolo
Price range: $1,995.00 through $2,495.00The 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.
Saunum AirIQ Wi-Fi Control System
$1,295.00The 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.
HUUM DROP Safety Rail | Rail D
$291.00Model-matched wood safety railing for HUUM DROP electric heaters. Rail D adds a physical buffer and a warm wood accent around the rounded steel basket without replacing any required heater clearance.
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.
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.
Saunum AutoLeil Automatic Water Dispensing Unit
$1,441.00Enhance 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 Barrel Sauna Chimney Kit for HIVE Wood & HIVE Flow
$1,559.00HUUM 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.
HUUM Thru-Ceiling Chimney Kit for Wood Sauna Stoves
$1,342.00HUUM’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.
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.
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.
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 UKU-TEMP-SNSR
$65.00This is the replacement temperature sensor for all HUUM UKU Controls. Sensor cable sold separately.
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.
HUUM UKU Extension Box
$773.00Power extension box required for HUUM sauna heaters rated 12 kW and above, used with the UKU control system.
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.
HUUM 75-Foot UKU Extension Cables | Control & Sensor
Price range: $143.00 through $176.00Current 75-foot HUUM UKU low-voltage extension cables. CONTROL-75 extends the UKU control panel cable; SENSOR-75 extends the temperature/door-sensor cable. Select the circuit you are extending rather than treating the two cables as interchangeable.
Harvia WHP500 Sauna Wood Stove Chimney Extension, 19.7 in, Stainless Steel
Price range: $428.00 through $456.00This 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.
SaunaLife Rounded Sauna Stones | 33 lb Box | Only Sold With Heater
$58.50The flame makes heat. The stones make it sauna. Each box contains 33 lb of rounded 1 to 2 in olivine diabase selected for heat storage and soft steam. SaunaLife specifies two boxes for TITAN SL1 even though the heater’s installed stone capacity is 44 lb; the purchase quantity and loaded capacity are different numbers. We keep both numbers visible so the complete heater package is clear before checkout. Inspect, rinse, and stack stones exactly as the heater manual directs.
SaunaLife TITAN SL1 Heater Guard | European Alder
$89.00TITAN already includes one of these. Add a second or third only when you want more of the heater wrapped in warm European alder. The curved SaunaLife TITAN SL1 Heater Guard clips to the stone basket and helps reduce accidental contact with the hot metal cage. We separated it as an add-on so the included guard never becomes a surprise double purchase. It does not change any required heater clearance and fits TITAN SL1 only.
SaunaLife TITAN SL1 Water Tank
$389.00Steam in the room and hot rinse water from the same heater. The stainless TITAN SL1 Water Tank uses heat from the burner, releases steady steam through openings in its top, and serves heated water through an integrated spigot. It is useful at a cabin or campsite where hot water would otherwise need another setup. The tank fits TITAN SL1 only. Heater, propane cylinder, and stones are sold separately.
SaunaLife TITAN SL1 Heat Shield
$189.00Two inches can decide whether a cabin layout works. This stainless Heat Shield clips onto TITAN SL1 and reduces the required cabin side and rear clearance from 6 to 4 in. Front clearance stays 16 in and overhead clearance stays 50 in. The shield must remain at least 1 in from combustible surfaces. We are repeating the limitation because it matters: the Heat Shield does not reduce TITAN clearances inside either SaunaTrekker tent.
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.
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 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 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 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 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 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 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.
HUUM HIVE Air Tunnel | Stainless Steel, Faster Heat-Up
$331.00Check the date on your heater before you buy this one. Every HIVE built since April 2024 already has an Air Tunnel inside it. If yours is older, this is the stainless steel insert that sits down among the stones and gives the heat a channel to climb through: HUUM rates it at a 25 percent shorter heat-up, longer element life, and fewer stones needed to fill the basket. It fits every HIVE and HIVE Mini electric model. A small part that changes how long you wait to get in.
Saunum AutoLeil Pre-Bent Pipe | Required Primary Pipe
$173.00Read this before you order an AutoLeil: the pipe is not in the box. The Saunum automatic water dispensing system needs this pre-bent primary pipe to run, and it is a separate line on the order. Coming pre-bent is the point. It arrives in the shape it needs to be in, which takes the fabrication step out of the install and lets it fit a range of room layouts without anyone cutting and forming steel on site.
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 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 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 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 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.
IKI Square Protective Sheet | Halves Ceiling Safety Distance
$80.00If your ceiling is too low for the heater you want, this is the part that solves it. A 19.7 inch square stainless steel sheet that mounts above the heater and cuts the required safety distance to the ceiling by half. It also takes the moisture, heat and long-term wear that would otherwise land on your ceiling boards directly above the stones, which is the first place a sauna ceiling starts to look tired. Made in Finland.
Prebuilt
Sauna Brushes
Vents