Sauna Heaters
Every heater manual prints a kW to room volume table. Far fewer print the adjustment you are supposed to apply to the room before you read that table, and skipping it is how heaters end up undersized. We pulled 169 of those adjustments out of 106 manufacturer installation manuals, and they are the difference between a heater that copes and one that never quite gets there.
Here is what one does. A 7 by 7 by 7 foot room is 343 cubic feet. Put a glass front on it and that 49 square feet of glass, at roughly 3.9 cubic feet of equivalent volume per square foot, adds 191. The room now sizes as 534, which is a whole heater size and sometimes two. The figure moves by brand: HUUM prints 3.3 per square foot of uninsulated brick, tile or glass, and Harvia multiplies the whole room by 1.5 for solid log walls.
Settle the electrical before the walls close. The Harvia Vega Compact runs 1.9 kW on 120V and 3.5 kW on 240V. Larger heaters need more: the Harvia Virta is 6, 8 or 9 kW on 240V single phase, and the 12 and 15 kW EOS Mythos S45 is 208V three phase.
Check what actually ships in the box. HUUM’s STEEL, CORE and CLIFF list the UKU controller and the stones as required and sold separately, and HUUM prints its room ranges already adjusted, so the DROP 2.0 covers 106 to 460 cubic feet after that math rather than before it.
From here it splits three ways: electric, wood-burning, and gas and propane.
Give us the room dimensions, the glass and the wall build at (844) 565-1113 and we will run the adjustment with you.
Showing 1–50 of 67 resultsSorted by latest
SaunaLife TITAN SL1 Propane Sauna Heater | Portable
$2,998.00A real sauna heater for sites where 240-volt service or firewood is the problem. TITAN is a Finnish-developed, 15,300 to 27,600 BTU propane heater with a 44 lb stone basket, sized for 140 to 350 cu ft uninsulated rooms or 140 to 425 cu ft insulated rooms. We have known the Finnish team behind this system for more than three years. After our recent Finland trip, its appeal was easy to understand: portable tent sauna is familiar there, and TITAN keeps the stones and löyly that make it sauna. Two stone boxes are required and sold separately.
Cozy Heat Quattro Thru-Wall Sauna Stove Package with Stones
Price range: $2,686.50 through $3,532.50Choose crisp geometry and outside loading first. The square Quattro cage belongs in the room; the loading door and woodpile belong on the other side. Cozy builds the stove with structural-steel firebox walls about 67% thicker than a typical standard-stove wall and clean welds.
It uses about 25% less wood than comparable heaters without making the fire fussy. Pick 12 or 18 kW, then select the matched stone finish and box count. Chimney, wall construction, and required protection remain separate.
Wall opening: 12 kW at least 10.0 in wide x 17.3 in tall from the floor; 18 kW at least 12.4 x 18.5 in. Concrete or brick, 5.9 in thick at most.
Cozy Heat Quattro Sauna Stove Package with Stones
Price range: $2,448.00 through $3,177.00The Quattro starts with square geometry and a real wood fire. Crisp horizontal bars give the heater a tailored profile rather than a round one. The working core has structural-steel firebox walls about 67% thicker than a typical standard-stove wall and clean, precise welds.
The stove uses about 25% less wood than comparable heaters while lighting and tending like a normal wood stove. Choose 12 or 18 kW before the selector adds the exact stone style and box count. Chimney and required protection are separate.
Cozy Heat SW Thru-Wall Sauna Stove Package with Stones
Price range: $2,686.50 through $3,424.50The big decision is the tall through-wall stove. The SW profile stays in the sauna while the loading door and firewood stay outside it. The core combines structural-steel firebox walls about 67% thicker than a typical standard-stove wall with clean, precise welds.
Three-path combustion uses about 25% less wood than comparable heaters while tending remains as familiar as a normal wood stove. Choose 12 or 18 kW, then finish the selection with the matched stone style and box count. Chimney, wall work, and required protection remain separate.
Wall opening: 12 kW at least 10.0 in wide x 17.3 in tall from the floor; 18 kW at least 12.4 x 18.5 in. Concrete or brick, 5.9 in thick at most.
Cozy Heat SW Sauna Stove Package with Stones
Price range: $2,448.00 through $3,069.00Choose the tall SW for its presence and performance. The wave-pattern cage brings the strongest vertical profile in the Cozy line. Below it, structural-steel firebox walls about 67% thicker than a typical standard-stove wall and clean welds support years of real fires.
The stove uses about 25% less wood than comparable heaters without making the fire fussy. Size the room for 12 or 18 kW first, then select the exact stone style and box count. Chimney and required protection are separate.
Cozy Heat OG Thru-Wall Sauna Stove Package with Stones
Price range: $2,686.50 through $3,505.50Start with the sculpted through-wall stove. The OG’s flared cage stays in the room while the loading door, ash, and woodpile move next door. Its structural-steel firebox walls about 67% thicker than a typical standard-stove wall are finished with clean welds.
The three-path burn uses about 25% less wood than comparable heaters, yet the fire remains as manageable as a familiar wood stove. Choose 12 or 18 kW, then the matched stone option. Chimney, wall construction, and required protection remain separate.
Wall opening: 12 kW at least 10.0 in wide x 17.3 in tall from the floor; 18 kW at least 12.4 x 18.5 in. Concrete or brick, 5.9 in thick at most.
Cozy Heat OG Sauna Stove Package with Stones
Price range: $2,448.00 through $3,177.00The OG earns its place through shape and build. Its flared vertical guard adds sculpture without hiding the working stove. Cozy backs that profile with structural-steel firebox walls about 67% thicker than a typical standard-stove wall and clean, precise welds.
Three-path combustion uses about 25% less wood than comparable heaters without making the fire fussy. Choose 12 or 18 kW first; the selected option then supplies the matched stone style and box count. Chimney and required protection are separate.
Cozy Heat O Thru-Wall Sauna Stove Package with Stones
Price range: $2,475.00 through $3,280.85Choose the round through-wall stove before the finishing details. The O cage stays visible while bark, ash, and refueling move to the adjoining room. Cozy builds it with structural-steel firebox walls about 67% thicker than a typical standard-stove wall and clean welds.
It uses about 25% less wood than comparable heaters and still lights and tends like a familiar wood stove. Select 12 or 18 kW, then the exact stone style and box count. Chimney, wall construction, and required protection remain separate.
Wall opening: 12 kW at least 10.0 in wide x 17.3 in tall from the floor; 18 kW at least 12.4 x 18.5 in. Concrete or brick, 5.9 in thick at most.
Cozy Heat O Sauna Stove Package with Stones
Price range: $2,187.00 through $3,127.50The O’s clean cylinder is still the main event. Its restrained round cage suits a room that wants a softer stove profile. The structure joins structural-steel firebox walls about 67% thicker than a typical standard-stove wall with clean, precise welds.
The stove uses about 25% less wood than comparable heaters while lighting and tending like a normal wood stove. Choose the 12 or 18 kW stove before selecting the matched stone finish and box count. Chimney and required protection are separate.
Cozy Heat Thru-Wall Sauna Stove Package with Stones
Price range: $2,583.00 through $3,334.50The through-wall routine is the reason to choose this package. Keep the open Cozy cage in view while tending the fire next door. The stove combines structural-steel firebox walls about 67% thicker than a typical standard-stove wall with clean welds for years of normal use.
Three-path combustion uses about 25% less wood than comparable heaters without making the fire fussy. Select 12 or 18 kW, then choose the matched stone style and box count. Chimney, wall construction, and required protection remain separate.
Wall opening: 12 kW at least 10.0 in wide x 17.3 in tall from the floor; 18 kW at least 12.4 x 18.5 in. Concrete or brick, 5.9 in thick at most.
Cozy Heat Standard Sauna Stove Package with Stones
Price range: $2,205.00 through $3,019.50Start with the Standard stove, then finish the order. The open round cage is the most direct Cozy design. Behind it are structural-steel firebox walls about 67% thicker than a typical standard-stove wall, finished with clean, precise welds for long service.
It uses about 25% less wood than comparable heaters while lighting and tending like a familiar wood stove. Choose 12 or 18 kW first; the selector then adds the exact stone style and box count. Chimney and required protection are separate.
Cozy Heat Quattro Thru-Wall Wood-Burning Sauna Stove – 12 & 18 kW
Price range: $2,452.50 through $2,884.50Keep the crisp geometry and move the tending routine outside. Quattro Thru-Wall leaves the square cage in the sauna and extends the firebox through the wall. Its structural-steel firebox walls about 67% thicker than a typical standard-stove wall are finished with clean welds.
Three-path combustion uses about 25% less wood than comparable heaters, yet lighting and refueling feel like a familiar wood stove. Choose 12 or 18 kW. Stones, chimney, wall detailing, and required protection are separate.
Wall opening: 12 kW at least 10.0 in wide x 17.3 in tall from the floor; 18 kW at least 12.4 x 18.5 in. Concrete or brick, 5.9 in thick at most.
Cozy Heat SW Thru-Wall Wood-Burning Sauna Stove – 12 & 18 kW
Price range: $2,452.50 through $2,884.50Big vertical presence, with the fire door elsewhere. The SW Thru-Wall keeps its high wave-pattern cage inside and moves the active wood routine next door. Cozy joins structural-steel firebox walls about 67% thicker than a typical standard-stove wall with clean welds beneath that stone column.
It uses about 25% less wood than comparable heaters, but starting and tending still feel like a normal wood stove. Choose 12 or 18 kW. Stones, chimney, wall detailing, and required protection are separate.
Wall opening: 12 kW at least 10.0 in wide x 17.3 in tall from the floor; 18 kW at least 12.4 x 18.5 in. Concrete or brick, 5.9 in thick at most.
Cozy Heat SW Wood-Burning Sauna Stove – 12 & 18 kW
Price range: $2,214.00 through $2,529.00The tallest Cozy makes a clear vertical statement. The SW opens a high wave of visible stone around a stove designed to anchor the room. Its structural-steel firebox walls about 67% thicker than a typical standard-stove wall are joined with clean, precise welds.
Three-path combustion uses about 25% less wood than comparable heaters while the fire lights and tends like a familiar wood stove. Choose 12 or 18 kW for in-sauna loading. Stones, chimney, and required protection are separate.
Cozy Heat OG Thru-Wall Wood-Burning Sauna Stove – 12 & 18 kW
Price range: $2,452.50 through $2,857.50Give the sauna the silhouette and the adjoining room the wood handling. The OG Thru-Wall pairs its flared guard with an extended firebox. The working core uses structural-steel firebox walls about 67% thicker than a typical standard-stove wall and clean welds for long service.
It burns about 25% less wood than comparable heaters while lighting and tending like a normal wood stove. Pick 12 or 18 kW. Stones, chimney, wall detailing, and required protection are separate.
Wall opening: 12 kW at least 10.0 in wide x 17.3 in tall from the floor; 18 kW at least 12.4 x 18.5 in. Concrete or brick, 5.9 in thick at most.
Cozy Heat OG Wood-Burning Sauna Stove – 12 & 18 kW
Price range: $2,214.00 through $2,529.00A sculpted stove that still looks built for work. The OG’s pinched, flared guard gives the heater a real silhouette while leaving the firebox legible. Under the cage, structural-steel firebox walls about 67% thicker than a typical standard-stove wall and clean welds make the durability case.
The three-path system uses about 25% less wood than comparable heaters, with the familiar wood stove rhythm of light, tend, and refuel. Choose 12 or 18 kW. Stones, chimney, and required protection are separate.
Cozy Heat O Thru-Wall Wood-Burning Sauna Stove – 12 & 18 kW
Price range: $2,182.50 through $2,416.85Clean round lines inside, firewood outside. The O Thru-Wall keeps its cylindrical cage in the sauna and puts the loading door in the adjoining room. That profile surrounds structural-steel firebox walls about 67% thicker than a typical standard-stove wall, joined with clean welds.
Three-path combustion uses about 25% less wood than comparable heaters, but the fire still behaves like a familiar wood stove. Choose 12 or 18 kW. Stones, chimney, wall detailing, and required protection are separate.
Wall opening: 12 kW at least 10.0 in wide x 17.3 in tall from the floor; 18 kW at least 12.4 x 18.5 in. Concrete or brick, 5.9 in thick at most.
Cozy Heat O Wood-Burning Sauna Stove – 12 & 18 kW
Price range: $1,894.50 through $2,263.50A calm cylinder around a hard-working firebox. The O gives the visible stone field a clean, rounded outline without turning the stove into decoration. Inside are structural-steel firebox walls about 67% thicker than a typical standard-stove wall and clean welds made for repeated fires.
Its three-path combustion uses about 25% less wood than comparable heaters, without making the fire fussy. Pick 12 or 18 kW for in-sauna loading. Stones, chimney, and required protection are separate.
Cozy Heat Thru-Wall Wood-Burning Sauna Stove – 12 & 18 kW
Price range: $2,290.50 through $2,578.50Move the woodpile and ash to the adjoining room. The original open cage stays in the sauna while the firebox passes through a properly built wall. The stove is built around structural-steel firebox walls about 67% thicker than a typical standard-stove wall, joined with clean welds for a durable core.
The three-path burn uses about 25% less wood than comparable heaters, yet lighting and refueling still feel like a familiar wood stove. Choose 12 or 18 kW. Stones, chimney, wall detailing, and required protection are separate.
Wall opening: 12 kW at least 10.0 in wide x 17.3 in tall from the floor; 18 kW at least 12.4 x 18.5 in. Concrete or brick, 5.9 in thick at most.
HUUM STEEL Mini Electric Sauna Heater | 3.5 kW
$1,576.00HUUM STEEL Mini is a low-profile small sauna heater that stands on adjustable legs against the wall and is secured with HUUM’s special bracket. Its 3.5 kW output covers 106–177 cubic feet, while approximately 132 lb of stones deliver mild, long-lasting steam. UKU control and four boxes of 1–2-inch stones are required and sold separately.
HUUM HIVE Mini Electric Sauna Heater | 6, 9 & 10.6 kW
Price range: $2,502.00 through $2,785.00HUUM HIVE Mini puts 331 lb of stones into a compact 18 1/8-inch floor heater for gentle, long-lasting steam. The current 2025+ version includes HUUM’s stainless steel air tunnel, engineered to improve airflow, speed warm-up, support the heating elements, and help them last longer. Choose 6, 9, or 10.6 kW for current 240V U.S. room ranges of 177 to 566 cubic feet. A HUUM UKU control and ten 33-lb boxes of 2 to 4-inch stones are required and sold separately.
2026 Saunum Air Perfect Air Blending Sauna Heater Package
Price range: $5,210.00 through $5,410.00If you like to suffer, this is NOT your heater. Saunum Air Perfect is an elegant climate equalizing sauna heater that pulls the best air from the core of the heater between two layers of rocks and blends it with fresh air before distributing it at floor level. It pulls off the famous Saunum equalization in a more elegant way, without the chimney. With an easy access panel, and prewired leads installing a Saunum heater has never been easier.
The patented air mixing system ensures exceptional heat that is soft, long, and evenly distributed throughout the sauna room. If you know anyone who thinks they don’t like the sauna, this will win them over. The Saunum Air Perfect is proudly available through your Sauna Marketplace.
Harvia Spirit – Wall-Mounted Rock Basket, Big Steam, UL Listed (6KW, 8KW, 9KW)
Price range: $1,715.00 through $1,930.00The Harvia Spirit is a modern rock basket electric sauna heater with massive stone capacity delivering world class heat (up to 194°F), steam, and reliability for small to medium saunas from 177 to 494 cubic feet. It requires 220v power, rocks, and a WI-FI enabled Xenio Control system.
Saunum Air L Stainless – Heat-Equalizing Sauna Heater with Himalayan Salt
Price range: $3,595.00 through $3,995.00The Stainless Steel Saunum Air L solves the most common sauna complaint: extreme temperature variation that forces you to choose between scorching heat or inadequate warmth, delivering instead an even, oxygen-rich environment from floor to ceiling.
Developed through scientific research with Tallinn University of Technology, Saunum’s patented air-blending system delivers the perfect sauna experience, gentle, long-lasting steam with consistent temperature that lets you enjoy longer sessions without discomfort.
Built to exacting standards with premium stainless steel, a massive 198-pound stone capacity, and integrated Himalayan salt therapy, the UL-certified Saunum Air L represents a true investment in your wellness routine and overall sauna enjoyment.
HUUM CORE Electric Sauna Heater with Wooden Exterior | Black or Stainless Inlay, 6.5-10.5 kW
Price range: $2,820.00 through $3,197.00HUUM CORE electric sauna heater with your choice of Alder, Aspen, or Thermo-Aspen exterior and a Black or Stainless Steel inlay. Available in 6.5, 9, and 10.5 kW.
Saunum AIR L – Professional Sauna Heater with Air Equalization and Himalayan Salt Therapy | 10KW 13KW 15KW
Price range: $3,895.00 through $4,195.00Saunum’s best performing sauna heater is here, with a lower rock basket, better clearances, and an overall more commercial grade heater than ever. Buy a Saunum Air L Climate Equalizing sauna heater on Sauna Marketplace and get the latest version with a prewired power box and cable whip making connections easy. You’ll also receive an external temperature sensor to give you more control over where it’s measured.
If you’re not familiar with Saunum heaters, be ready to experience the most versatile, enjoyable sauna experience on the planet. Saunum doesn’t just heat the space, but redistributes air to provide more even temperatures and more oxygen to whoever is lucky enough to be on the bench. The massive stone capacity along with Saunum Air Blending technology provide a soft, long-lasting steam evenly distributed throughout your sauna.
With Saunum, you’ll exit the sauna feeling rejuvenated, not depleted. Whether you were born in the sauna or have never enjoyed them, there’s a Saunum preset that will win you over, we’re sure of it.
Saunum Air is UL-approved for North America and ships daily out of greater Chicago. At Sauna Marketplace, every Saunum heater comes with specially selected rocks paired by Saunum, Wi-Fi enabled AirIQ Controller, Himalayan salt spheres, External Temperature Sensor, US-based support, and the latest integrated power box for simplified installation.
Harvia Virta 10.5KW Electric Sauna Heater | HL110E
$2,739.00At Sauna Marketplace, we appreciate the little things that can improve your sauna experience. The things everyone else misses, leaving you with too few stones, or a heater that doesn’t fit. For instance, the Harvia Virta 10.5KW is deeper and has more rocks than its smaller counterparts. But if it fits, it’s likely an even better solution with more, softer steam.
The Harvia Virta series is a collection of high-quality, Finnish-made electric sauna heaters designed for a wide range of sauna room sizes, from 177 to 1130 cubic feet. These heaters can comfortably accommodate residential and commercial settings by boasting power outputs from 6kW to 20kW (See Virta Pro for largest models). All models are crafted from heavy stainless steel and offer the flexibility of either sidewall or corner, floor mount installations. Selected models in the range feature a built-in steamer to add functionality to your sauna. With a Xenio Control (WI-FI option available), users can customize their sauna sessions to their preferences.
*Important*
Only the Virta Combi models have automatic steam.
Harvia Virta Combi 10.5KW HL110SA
$3,770.00The 10.5KW Harvia Virta is deeper and holds more stones than its’ smaller counterparts. If its a good fit, this is going to provide the softest heat and steam without lifting a finger. Harvia Virta Combi allows you to set not just the temperature, but the humidity so you can sit in that perfect spot without getting up to pour water on the rocks.
Use it as a standard Finnish sauna heater by ladling water on the rocks, or crank up the humidity and create a steam room. The choice is yours. It’s 1.3 gal water reservoir can be filled manually or with it’s built in plumbing intake.
For those who enjoy soft and humid steam and the atmosphere created by fragrances, the Virta Combi is the perfect choice. It allows you to stop burning through heating elements, and introduce the perfect blend of essential oils without exposing the elements to them.
This modern heater has designated soapstone cup for fragrance liquids and bags. Easily transition from a traditional sauna, a steam sauna, a herbal sauna or a fragrance sauna – all in the same session.
HUUM HIVE Electric Sauna Heater with Included Air Tunnel | 12, 15 & 18 kW
Price range: $2,848.00 through $3,356.00Full-size HUUM HIVE is built around 528 lb of stones for large residential and commercial-style sauna rooms from 424 to 989 cubic feet. The current 2025+ U.S. heater includes HUUM’s stainless-steel air tunnel to improve airflow, support the elements, and help them last longer. UKU control, UKU Extension Box, and sixteen 33-lb boxes of 2 to 4-inch stones are required and sold separately.
Harvia KIP Electric Sauna Heater
Price range: $954.00 through $1,258.00The Harvia KIP is the most affordable professional grade heater, but don’t let that fool you. It may also be the most reliable, quickest to heat, and most adaptable. The Harvia KIP is so popular that many designs, heater guards, and best practices are built around it.
The Harvia KIP has an external temperature sensor for more control and accuracy, allowing you to spec the best location for your room.
The KIP is has industrial-grade heating elements that are included in the Harvia warranty and stand up to regular sauna use. Sizes include 4.5KW, 6KW, and 8KW with built-in controls or a wall mounted controller system with Wi-Fi-enabled Xenio for advanced scheduling and remote-control. We’ve found the 8KW Harvia KIP outperforms most 9KW electric heaters in heat-up time and max temperature.
All KIPs are UL‑listed, use industrial‑grade, serviceable elements, and are designed and made in Finland with a 2‑year consumer warranty. Standard size across the line is 16″W × 11″D × 24″H, with outputs from 4.5 to 8 kW to fit rooms from 100 to 425 cu ft.
Harvia Club Series
Price range: $2,023.00 through $2,286.00The Harvia Club series represents a line of premium electric sauna heaters, offering a range of power ratings to suit various sauna room sizes. These heaters embody the traditional Finnish sauna experience, combining modern craftsmanship with the age-old sauna bathing tradition. Exceptionally engineered for reliability, safety, and efficiency, the Club series heaters are ideal for homes, health clubs, hotels, and spas. With a high stone capacity and the need for separate Xenio control units, these heaters ensure a consistent and pleasurable heat distribution. Given their robustness and versatility, the Harvia Club series stands as an excellent choice for both residential and commercial settings.
Harvia Cilindro Electric Sauna Heater
Price range: $1,181.00 through $1,625.00Dreaming of Steam? Harvia Cilindro is the classic pillar, rock basket electric sauna heater, the best selling heater in Finland for almost a decade. The Cilindro is for steam lovers who like lower temperatures and endless steam. Note the minimum room requirements are the same throughout, and the footprint is larger for the 10.5KW model. The 9KW and 10.5KW are best for most applications. Choose Wi-Fi Enabled Xenio for easy control and scheduling. Choose built-in controls for price and simplicity.
HUUM DROP Electric Sauna Heater | 4.5, 6, 7.5 & 9 kW
Price range: $1,334.00 through $1,751.00HUUM DROP combines a wall-mounted, water-drop form with 122 lb of exposed stones for soft, abundant steam. This is the latest current U.S. generation, with HUUM’s reflector, heat diverter, element retainers, and element spacers included. Choose 4.5, 6, 7.5, or 9 kW for adjusted sauna volumes from 106 to 460 cubic feet.
Build your complete DROP system. Every new installation needs three components: the DROP heater, a HUUM UKU controller, and 122 lb of 2–4 inch sauna stones. We’ve preselected the most popular Wi-Fi controller and the correct stones. Your complete subtotal updates below.
HUUM HIVE Wood-Burning Sauna Stove | 13, 17 & 17 LS
Price range: $2,150.00 through $2,618.00HUUM HIVE Wood surrounds a heavy firebox with 199 to 287 lb of stones, bringing gentle, water-rich steam to off-grid and wood-fired saunas from 212 to 565 cubic feet. Choose 13 kW, 17 kW, or 17 LS with an extended firebox for feeding from an adjacent room. Stones and a code-compliant chimney system are required and sold separately.
17 LS wall opening: at least 18.9 in tall x 12.6 in wide (480 x 320 mm) through a non-combustible wall; the firebox extension projects 7.3 in (185 mm) from the stove body.
Saunum AIR Closed Basket Climate Equalizing Sauna Heaters, Black | 5KW 7KW 10KW
Price range: $4,565.00 through $4,765.00Experience the sauna as it was meant to be -a rejuvenating ritual that leaves you feeling better than when you entered. Without combustion of a wood stove, American electric saunas tend to have stale, harsh heat settled at head height. This can cause dizziness, while leaving feet cold. If you’ve ever “endured” a sauna session, listen up.
Saunum Air revolutionizes the experience by blending the hottest air from the ceiling with oxygen-rich air near the floor, creating a more even and comfortable environment. Say goodbye to hard-to-breathe air and burning steam. Breathe easy with the most versatile sauna heater on the planet.
With the external temperature sensor (now shipping free with Sauna Marketplace orders!) the Saunum Air gets hotter than ever. This is also our favorite heater for “slow-and-low” sauna sessions with high humidity and softer heat flowing over included Himalayan salt spheres and Aromatherapy cup at the base. Truly a world-class Spa experience.
Saunum Air is UL-approved for North America and ships daily out of greater Chicago. At Sauna Marketplace, every Saunum heater comes with specially selected rocks paired by Saunum, Wi-Fi enabled AirIQ Controller, Himalayan salt spheres, External Temperature Sensor, US-based support, and the latest integrated power box for simplified installation.
More than hot air: Book a free consultation or jump into the chat below to speak with a Sauna Marketplace founder who owns and loves his Saunum Air 10:).
Saunum AIR Stainless Open Basket Climate Equalizing Sauna Heater
Price range: $4,465.00 through $4,665.00Saunum Air Stainless Open Basket keeps more heat lower in the room. That means you don’t need to climb a ladder to reach the perfect seating position. Of course, this heater does what Saunum is famous for: redistributing the hottest air that settles at the ceiling, mixing it with cooler fresh air and redistributing it at the floor. But the open basket also releases more energy directly through the sides than its solid black counterpart.
That means you’ll get more direct radiant heat and steam directly from the rocks. If you’re looking for a more intense heat that’s evenly distributed, the open basket Saunum Air is for you.
With the external temperature sensor (now shipping free with Sauna Marketplace orders!) the Saunum Air gets hotter than ever. It’s versatile, and a truly world-class sauna experience. Take it from the folks at Sauna Marketplace, it’s hard to go back.
Saunum Air is UL-approved for North America and ships daily out of greater Chicago. At Sauna Marketplace, every Saunum heater comes with specially selected rocks paired by Saunum, Wi-Fi enabled AirIQ Controller, Himalayan salt spheres, External Temperature Sensor, US-based support, and the latest integrated power box for simplified installation.
2026 Harvia KIP Black Electric Sauna Heater
Price range: $1,092.00 through $1,314.00The Harvia KIP is the most affordable professional grade heater, but don’t let that fool you. It may also be the most reliable, quickest to heat, and most adaptable. The Harvia KIP is so popular that many designs, heater guards, and best practices are built around it.
The Harvia KIP has an external temperature sensor for more control and accuracy, allowing you to spec the best location for your room.
The KIP is has industrial-grade heating elements that are included in the Harvia warranty and stand up to regular sauna use. Sizes include 4.5KW, 6KW, and 8KW with built-in controls or a wall mounted controller system with Wi-Fi-enabled Xenio for advanced scheduling and remote-control. We’ve found the 8KW Harvia KIP outperforms most 9KW electric heaters in heat-up time and max temperature.
All KIPs are UL‑listed, use industrial‑grade, serviceable elements, and are designed and made in Finland with a 2‑year consumer warranty. Standard size across the line is 16″W × 11″D × 24″H, with outputs from 4.5 to 8 kW to fit rooms from 100 to 425 cu ft.
Harvia Virta Electric Sauna Heater With Wi-Fi (6, 8, 9 kW)
Price range: $2,017.00 through $2,143.00Harvia Virta is a modern, floor‑standing electric sauna heater available in 6 kW, 8 kW, and 9 kW for ~175–500 ft³ rooms, running on 240 V single‑phase and controlled with the Harvia Xenio (Wi‑Fi/MyHarvia comes standard on Sauna Marketplace). All Virta models reach 194°F and are designed for steam by ladling water on the heated rocks – for automatic steam choose Virta Combi; for larger rooms, see Virta 10.5 kW or Virta Pro.
The standard Harvia Virta is our go-to heater for the most reliable, consistent heat with no hot spots that fits perfectly in almost any sauna. It’s sleek outer shell acts as an integrated safety shield while minimizing safety clearances. We find its 100-pound rock capacity to be the sweet spot for comfortable (not harsh) heat without long heat-up times. Buy now and get an extra year’s warranty when you register with Harvia.
Harvia Virta Combi Auto Steam Sauna Heater
Price range: $3,648.00 through $3,711.00If you want a true sauna with the option to dial in gentle steam and set a specific humidity level, this is the only heater we recommend. Virta Combi is a traditional electric rock heater with a built-in steamer. You can throw water on the stones for classic löyly, or let the steamer do the work and hold a steady, softer humidity that feels closer to a steam room. Not sure if you want a steam room or a sauna? Combi gives you both in one unit.
*Requires two separate 240v circuits
Harvia Legend 240 GreenFlame
$2,859.00The impressive Harvia GreenFlame 240 is ideal for medium sized saunas, up to 848 cu. ft., with a large glass door for you to get lost in the tranquility of the flames. Not only impressive in looks the Harvia GreenFlame 240 is durable, easy-to-use, and has 70% lower carbon monoxide emissions.
Harvia Virta Pro 16 | 240V Single‑Phase Commercial Sauna Heater
$3,736.00This is our go-to recommendation for both commercial saunas and large home saunas where reliability, safety, and everyday performance are essential. With a sleek black outer shell, easy maintenance access, and extended Harvia warranty this heater will keep your people coming back for more. Have an even larger commercial sauna? Double or triple up on this heater for any space. Like all Harvia Virta or Club models, maintenance and serviceability are unrivaled.
Harvia Vega Compact (1.9KW, 3.5KW)
Price range: $860.00 through $889.00The Harvia Vega Compact 1.9 kW (120V) and 3.5 kW (240V) are the smallest wall‑mount electric rock heaters we trust for North America, with built‑in controls, ultra‑low clearances, and fast heat‑up for tiny traditional saunas and infrared‑plus‑steam combo cabins. We like them because they’re safe, simple, and quietly reliable. There’s no external control box, no bundle of extra wires – just a clean wall mount and two knobs on the face (temp + time). If you’re trying to add real steam to a compact IR sauna or heat a very small Finnish sauna, this is the right tool for the job.
Narvi NC Wood-Burning Sauna Stove | 16, 20 & 24
Price range: $1,695.00 through $2,495.00Experience the most efficient sauna stove on the planet, all in a modern package that looks great in any sauna. We call this stove the ‘goldilocks’ of thermal mass. If you have too little rocks, the sauna will heat fast but may feel harsh. Too many rocks and it can take hours to heat the room. The Narvi NC Series is the perfect balance of efficiently heating the room while providing a soft heat and steam.
This stove requires a fraction of the wood as less efficient stoves, achieving a complete burn that’s good for you, your neighbors, and the planet. And while most Finnish sauna companies are shipping production to China, this heater is 100% designed and built by people who live and breathe sauna in Finland.
Sauna Stone Capacity: up to 132.3 lb
Made In Finland.
Narvi 30 Wood‑Burning Sauna Stove – 24 kW Finnish Heater
$6,995.00We’d hate to spoil every other sauna for you, but the Narvi 30 just might. Cradling a mountain of stones inside armor‑thick steel, it turns every log into waves of deeply radiant warmth. Hand‑built on Finland’s rugged west coast, where Narvi still forges every component in‑house, the 30 is a generational centerpiece built to outlast the sauna itself. We pallet‑wrap and ship it free to your build site, ready for decades of raising the bar of what a sauna can be.
Narvi 50 Wood‑Burning Sauna Stove – 50 kW Finnish Heater
$8,995.00Hand‑built on Finland’s west coast by Narvi -still the only major heater brand that designs and fabricates every component on Finnish soil, **the Narvi 50 is the most powerful wood‑burning sauna stove you can buy in North America. It’s nearly 5/8 inch‑thick steel firebox surrounds a 220‑pound stone bed, effortlessly filling up to 2,500 ft³ with rolling clouds of löyly that last for hours. Rated at ≈ 171,000 BTU/h, the 606‑pound chassis embodies Narvi’s 80‑year “zero‑compromise” philosophy on steam quality and longevity. A panoramic glass door, reversible hinge, top‑or‑rear 6‑inch flue outlet, and serviceable cast‑iron grate all speak to the same engineer‑for‑decades mindset. Backed by a 2‑year factory warranty and free U.S. freight from Sauna Marketplace, the Narvi 50 delivers life-changing Finnish heat to lodges, spas, and serious private builds alike.
Homecraft Apex Commercial-Grade Electric Sauna Heater | 10, 12, 15 and 18 kW
Price range: $2,050.00 through $3,100.00A commercial room that goes cold on a Saturday morning costs more than the heater ever did. Apex is the Homecraft built for rooms that open early and run late: an 18-inch stainless tower carrying 350 lbs of igneous rock, elements set back inside a protected air chamber instead of sitting out in the rock, and four outputs covering rooms from 400 to 1,150 cubic feet. Built in Surrey, British Columbia, CSA and UL certified. We sell the contactor box, the touchpad and the rock alongside it, so nothing lands on your dock half finished.
Harvia Virta Pro 20 | 208v 3-Phase Commercial Sauna Heater
$4,943.00If you run a public sauna and “down for maintenance” is not an option, this is the heater we trust. The Virta Pro 20 has the right mix of power, stone mass, and serviceability for busy gyms, hotels, apartments, and studios. It’s the model we see running day in, day out with minimal fuss.
Harvia’s most powerful and appealing electric sauna heater, the Virta Pro 20 is our go-to commercial sauna heater when 208v 3ph power is required. It’s as close to one-size-fits all as we’ve seen in the industry. Ideal for saunas from 354 cubic feet all the way up to 1130 cubic feet.
We have customers running this heater 24 hours/day for years in gyms, spas, hotels, and pro training centers. Maintenance, performance, and longevity are the design principles to be appreciated even more over time. When downtime isn’t acceptable, there’s nothing better than a Virta.
Cozy Heat Quattro Wood-Burning Sauna Stove – 12 & 18 kW
Price range: $2,214.00 through $2,529.00Square geometry around an honest wood fire. Quattro’s horizontal bars and crisp footprint fit clean-lined rooms without losing the character of a real stove. The cage wraps structural-steel firebox walls about 67% thicker than a typical standard-stove wall, joined with clean welds.
Its three-path burn uses about 25% less wood than comparable heaters and still tends like a familiar wood stove. Choose 12 or 18 kW for in-sauna loading. Stones, chimney, and required protection are separate.
Homecraft Revive Slim Electric Sauna Heater | 8-Inch Deep, 4, 5 and 6 kW
Price range: $1,350.00 through $1,690.00Most small saunas do not fail on power. They fail on the eight inches of wall you do not have. The Revive Slim is 8 inches deep and 13.5 inches wide, and with the Homecraft wall baffle behind it the clearance to combustibles drops from 3.5 inches to 1. That is the difference between a bench you can actually sit on and a room you gave up on. Three outputs from 4 to 6 kW for rooms of 100 to 325 cubic feet, stainless throughout, built in Surrey, British Columbia, CSA and UL certified.
Homecraft Revive Electric Sauna Heater | 200 lb Rock Tower, 6, 7.5 and 9 kW
Price range: $1,690.00 through $1,775.00Water hits the stones and the room answers. That is the whole argument for the Revive: a 36-inch stainless tower holding 200 lbs of rock, with the heating elements set back inside an air chamber so the steam comes off hot stone instead of hot metal. Softer heat, and a lot more of it per ladle than a heater with a shallow basket. Three outputs from 6 to 9 kW, built in Surrey, British Columbia, CSA and UL certified with ETL listing for permanent installation. It is the heater we point wellness buyers to when they have been comparing it against a HUUM.
Premium sauna heaters from trusted manufacturers
The heater is the heart of your sauna
This isn't just heat – it's a commitment. Every heater we sell comes with lifetime support from people who actually use saunas, troubleshoot installations, and answer the phone when something's not right. We're not a warehouse with a checkout button. We're here for the long haul, from your first planning call to your thousandth session.
Prebuilt
Sauna Brushes
Vents