Description
Cozy Heat has elevated the traditional craft of sauna stove construction with the O TW wood-burning sauna stove. Hand-made in Estonia, where sauna bathing is a cherished tradition, this stove embodies both craftsmanship and innovation. The flame cutter, a critical component of the stove, is constructed from durable 5mm-thick stainless steel, ensuring long-lasting performance and durability that sets COZY heaters apart.
The Cozy Heat O TW is designed to deliver mild, consistent heat, making it perfect for those who enjoy pouring water over hot stones to create luxurious, enveloping steam. Its through-the-wall design allows you to load firewood from outside your sauna, keeping your space clean and uncluttered. With an innovative circular rim design, this stove not only enhances the aesthetic appeal of your sauna but also ensures even heat distribution for a truly immersive and gratifying sauna experience.
Features
- Wood-burning
- Steel Construction
- Smoke gases are 6x cleaner
- German BIMSCH certificate
- Stove utilizes 25%-40% less fuel than comparable sauna stoves
- Boasts minimal safety distances
- Mild and long-lasting heat
- Floor mount thru-wall
- Sauna room sizes:
- 12kW – 210 to 423 cu.ft.
- 18kW – 318 to 636 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).
- 2-Year Warranty
- Designed and engineered in Estonia
Includes
- Outer frame of the heater
- Chimney pipe
- Heater body
- Cleaning hatch
- Heater door with glass
- Ash box
- Installation and operation manual
Specifications
| Model | Cozy O Thru-Wall 12 |
|---|---|
| Kilowatt Rating | 12kW |
| Primary Fuel | Wood |
| Maximum Firewood Length | 2.99″ (329mm) |
| Diameter of Firewood | 3.14″ 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 | 125 lbs |
| Shipping Weight with Sauna Stones | 367 lbs |
| Safety Distance Front to Back | 55.1″ (1400mm) |
| Safety Distance Right to Left | 33.06″ (840mm) |
| Stove Depth | 26.37″ (670 mm) |
| Stove Width | 17.71″ (450 mm) |
| Stove Height | 27.55″ (700 mm) |
| Model | Cozy O Thru-Wall 18 |
|---|---|
| Kilowatt Rating | 18kW |
| Primary Fuel | Wood |
| Maximum Firewood Length | 15.74″ (400mm) |
| Diameter of Firewood | 3.14″ 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 | 181 lbs |
| Shipping Weight with Sauna Stones | 533 lbs |
| Safety Distance Front to Back | 59.43″ (1510mm) |
| Safety Distance Right to Left | 39.75″ (1010mm) |
| Stove Depth | 30.70″ (780 mm) |
| Stove Width | 19.88″ (505 mm) |
| Stove Height | 29.76″ (756 mm) |






















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