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

Description

The Cozy Heat Quattro Thru-Wall Sauna Stove combines the authentic experience of traditional wood-fired sauna heating with the convenience of a through-wall firebox design. Hand-crafted in Estonia, where sauna bathing is a daily ritual, this heater produces the soft, long-lasting warmth that traditional sauna users value.

The Quattro TW 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 and comfortable while maintaining the rustic charm of a real wood-burning sauna.

Designed for ladling water over heated stones, the heater creates rich steam that fills the sauna with relaxing heat and humidity. Its square structure and minimalist design complement both rustic and modern sauna environments, while the large viewing window allows you to enjoy the calming glow of the fire during your sauna session.

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 heaters deliver a softer and more natural heat compared to electric sauna heaters. The Cozy Heat Quattro TW is engineered to provide consistent radiant warmth while maintaining efficient combustion.

At the core of the heater is a 5mm thick stainless steel flame cutter, the most critical component of any wood-burning sauna stove. This durable design ensures reliability even under the intense temperatures of sauna operation.

Cozy sauna heaters are also designed for high efficiency, producing cleaner combustion while reducing firewood consumption.