Description
Cozy Heat Thru-Wall Wood-Burning Sauna Stove
The Cozy Heat Thru-Wall Sauna Heater brings authentic Nordic sauna tradition to your sauna while offering a unique and convenient installation design. Hand-crafted in Estonia, where sauna bathing is a way of life, this wood-burning sauna stove produces gentle, long-lasting heat and luxurious steam when water is poured over heated sauna stones.
What makes the Cozy Heat TW model special is its through-the-wall design, allowing you to load firewood from outside the sauna room. This keeps the sauna interior cleaner while maintaining the traditional wood-fired sauna experience.
Designed with durability and efficiency in mind, this stove features a 5mm thick stainless steel flame cutter, extremely clean combustion technology, and fuel efficiency that uses 25–40% less firewood than comparable sauna heaters.
Whether you are installing a backyard sauna, outdoor sauna cabin, or indoor traditional sauna, the Cozy Heat TW stove delivers authentic wood-fired sauna performance with modern engineering.
Available Heating Options
The Cozy Heat Thru-Wall sauna stove is available in two heating capacities depending on your sauna room size.
12kW Model
• Designed for sauna rooms 210 – 423 cubic feet
• Minimum 200 lbs of sauna stones required
18kW Model
• Designed for sauna rooms 317 – 635 cubic feet
• Minimum 310 lbs of sauna stones required
Choosing the correct heating capacity ensures proper heat distribution and optimal steam production.
Key Features
Through-Wall Firebox Design
The stove allows firewood to be loaded from outside the sauna room, helping maintain a clean and comfortable sauna interior.
Heavy-Duty Steel Construction
Built from high-quality steel designed to withstand extreme sauna temperatures and continuous heating cycles.
Stainless Steel Flame Cutter
The flame cutter, one of the most critical components in a sauna heater, is made from 5mm thick stainless steel, ensuring long-term durability.
Clean Burning Technology
The Cozy Heat stove produces up to six times cleaner smoke emissions, improving efficiency and environmental performance.
Efficient Wood Consumption
Optimized combustion technology allows the stove to use 25–40% less firewood compared with many traditional sauna heaters.
Steam Sauna Performance
Designed for pouring water over hot sauna stones to produce rich steam (löyly) and create a relaxing sauna atmosphere.
Minimal Safety Distances
The compact design requires smaller clearances than many traditional wood sauna stoves, making installation easier in tight sauna spaces.
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
Product Specifications
Technical
| Installation and Operational Manual | |
| Warranty |
Why Customers Choose the Cozy Heat Thru-Wall Sauna Heater
• Firewood can be loaded from outside the sauna room
• Authentic traditional wood-fired sauna experience
• Hand-crafted in Estonia by sauna experts
• Produces soft, long-lasting radiant heat
• Designed for steam sauna performance
• Extremely durable stainless steel components
• Highly fuel-efficient wood combustion