Cozy Heat SW Thru-Wall Sauna Stove (12kW / 18kW)

Description

The Cozy Heat OG Sauna Stove is an authentic wood-burning sauna heater hand-made in Estonia, where sauna bathing is a national tradition. Built

The Cozy Heat SW Thru-Wall Sauna Stove brings authentic wood-fired sauna heating together with the convenience of a through-wall firebox design. Hand-crafted in Estonia, where sauna bathing is deeply rooted in national culture, this heater produces the gentle, long-lasting heat that traditional sauna enthusiasts appreciate.

The SW-TW model allows the firebox to extend through the sauna wall, making it possible to load firewood from outside the sauna room. This keeps the sauna interior clean while maintaining the classic ambiance of a traditional wood-burning sauna.

Designed specifically for pouring water over hot sauna stones, the Cozy Heat SW-TW generates rich steam that fills the room with relaxing warmth and humidity. Its sleek cylindrical design improves heat circulation while also creating a modern visual centerpiece for your sauna.

Available heating capacities:

12kW Model
For sauna rooms from 210 – 423 cubic feet

18kW Model
For sauna rooms from 317 – 635 cubic feet

Available Heating Options

The Cozy Heat OG sauna stove is available in two heating capacities depending on the size of your sauna room.

12kW Model

• Designed for sauna rooms 210 – 423 cubic feet
• Requires a minimum of 200 lbs of sauna stones

18kW Model

• Designed for sauna rooms 317 – 635 cubic feet
• Requires a minimum of 350 lbs of sauna stones

Selecting the correct heating capacity ensures efficient heat distribution and optimal steam production.

Heating Performance

Wood-burning sauna stoves produce a softer and more natural heat compared to electric heaters. The Cozy Heat SW-TW delivers steady radiant warmth while maintaining efficient combustion.

At the core of the heater is a 5mm thick stainless steel flame cutter, the most critical component in any wood-burning sauna heater. This heavy-duty construction ensures long-term durability and reliable performance even under extreme temperatures.

The SW-TW heater is engineered to burn wood efficiently, producing cleaner emissions and reducing fuel consumption compared with many traditional sauna heaters.