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A Personalized Approach to Wellness. Proudly based in USA.
A Personalized Approach to Wellness. Proudly based in USA.

Cozy Heat Thru-Wall Sauna Heater Wood-Burning Sauna Stove, Up to 18kW

4.5 805+ online reviews
by Cozy
Original price $1,790.00 - Original price $2,090.00
Original price
$1,790.00
$1,790.00 - $2,090.00
Current price $1,790.00

Speak To An Expert on +1 (984) 355-8109

COZY has taken the craft of building a wood-fired sauna stove to the next level. This Cozy Heat though-the-wall wood-burning sauna stove is hand-made in Estonia - where sauna is a way of life - and is perfect for intimate sauna spaces. 

Wood-burning saunas are best for mild and long-lasting heat, designed for pouring water over hot stones to create the perfect amount of steam. Its through-the-wall design allows you to feed firewood into the stove from outside your sauna room.

The most sensitive part of the wood-burning heater, the flame cutter, is made of 5mm-thick stainless steel making COZY heaters extremely durable. 

Enjoy a relaxing traditional sauna experience with the Cozy Heat TW wood-burning sauna stove!

Features
  • Wood-burning
  • Steel construction
  • Black color
  • Mild and long-lasting heat
  • Steel Construction
  • Smoke gases are 6x cleaner
  • German BIMSCH certificate
  • Stove utilizes 25%-40% less fuel than comparable sauna stoves
  • Boasts minimal safety distances
  • Floor mount thru-wall
  • Sauna room sizes:
    • 12kW - 210 to 423 cu.ft.
    • 18kW - 317 to 635 cu.ft.
  • Stone Requirements:
    • 12kW - minimum of 265lbs of stones
    • 18kW - minimum of 353lbs of stones
      • Please note that each natural stone is unique in shape and size. We recommend purchasing an additional box of sauna stones to allow you to choose the highest quality of stone for fit, form, and function (Additional freight charges will apply). 
Includes
  • Outer frame of the heater
  • Chimney pipe 
  • Heater body
  • Cleaning hatch
  • Heater door with glass
  • Ash box
  • Installation and operation manual
  • 2-Year Warranty
Specifications

Model

Cozy 12 Thru-Wall

Kilowatt Rating

12kW

Primary Fuel

Wood

Maximum Firewood Length

12.95" (329mm)

Diameter of Firewood

3.15" to 4.72" (80mm-120mm)

Minimum Cubic Feet

210 Cu. Ft.

Maximum Cubic Feet

423 Cu. Ft.

Minimum Room Height

72" (1828mm)

Flue Connection Location

Top

Heater Weight

126 lbs

Shipping Weight with Sauna Stones

368 lbs

Safety Distance

See Installation and Operation Manual

Stove Depth

25.98" (660 mm)

Stove Width

16.92" (430 mm)

Stove Height

27.55" (700 mm)

Model

Cozy 18 Thru-Wall

Kilowatt Rating

18kW

Primary Fuel

Wood

Maximum Firewood Length

15.74" (400mm)

Diameter of Firewood

3.15" to 4.72" (80mm-120mm)

Minimum Cubic Feet

317 Cu. Ft.

Maximum Cubic Feet

635 Cu. Ft.

Minimum Room Height

82" (2096mm)

Flue Connection Location

Top

Heater Weight

185 lbs

Shipping Weight with Sauna Stones

537 lbs

Safety Distance

See Installation and Operation Manual

Stove Depth

30.51" (775 mm)

Stove Width

19.68" (500 mm)

Stove Height

29.76" (756 mm)

 

Shipping


About This Delivery: This sauna heater system requires a scheduled appointment. It arrives on a wooden pallet and is encased in three-ply cardboard for solid protection. The driver is responsible for “delivery only” and will provide limited assistance at the site. Prior to shipping, we may contact customers to share shipment details and needs and discuss any extenuating delivery circumstances that may complicate or cause additional delivery expenses. Our goal is to ensure your project’s success.

Accessory Freight: Sauna accessories can be shipped with this sauna heater to save on shipping costs. Consider adding accessories to sauna heater orders to bolster margins. 

4.5 805+ online reviews

4.5

805+ online ratings
The summary star rating & review is based on aggregated reviews of this product across the web. It cannot be altered by the merchant and can be verified by emailing support@onereview.app.

Cozy Heat Thru-Wall Sauna Heater Wood-Burning Sauna Stove, Up to 18kW Review Summary

4.5

805+ online ratings
The summary star rating & review is based on aggregated reviews of this product across the web. It cannot be altered by the merchant and can be verified by emailing support@onereview.app.

What people like

The Narvi Luosto VS Wood-Burning Sauna Stove, 16kW, is a renewed version of the Kota L, designed for efficient and durable heating in small to medium-sized saunas (8-20 m³). A key feature is its integrated 30-liter stainless steel water tank with a faucet, providing convenient access to hot water. It boasts a sleek, round design with a black enameled steel casing and a cast-iron framed glass door. Adjustable feet ensure easy installation, and it's engineered to heat up quickly with minimal wood while providing good steam (löyly). It supports both top and rear flue connections (rear only when supplied with a cauldron, which seems to be a less common configuration).

Pros

Integrated Watertank: Convenient hot water access.

Efficient Heating: Heats quickly, uses little wood.

Durable Build: Enameled steel, cast iron door.

Good Steam: Designed for enjoyable löyly.

Stylish Design: Sleek, round appearance.

Adjustable Feet: Easy installation.

Glass Door: Ambiance, fire monitoring.

Cons

Manual Operation: Requires tending the fire.

Heat Control: Less precise than electric.

Ash Removal: Regular cleaning needed.

Fuel Sourcing: Requires wood as fuel.

Stones Not Included: Typically purchased separately (holds 35kg).

Rear Flue Limitation: Top connection is the standard.

Limited Reviews: Fewer widespread independent reviews specifically for the VS model.

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