The Cozy Heat Quattro 18kW Thru-Wall Wood-Burning Sauna Stove is a stylish sauna heater designed to complement the rustic character of a home sauna. Its practical through-the-wall design allows firewood to be loaded from outside the sauna, keeping the interior clean and uncluttered.

Handcrafted in Estonia, where sauna culture is deeply rooted, the Cozy Heat Quattro 18kW Thru-Wall Wood-Burning Sauna Stove is built for durability and consistent performance. The flame cutter—one of the most critical components of a wood-burning stove—is made from 5 mm-thick stainless steel to withstand high temperatures over time.

Wood-fired sauna stoves deliver steady, long-lasting heat and are designed for pouring water over heated stones to create smooth, even steam. With clean lines and a large viewing window that showcases the glow of the fire, the Cozy Heat Quattro 18kW Thru-Wall Wood-Burning Sauna Stove offers a timeless, functional centerpiece for a traditional sauna setup.

Important: Sauna stones are required for operation and are sold separately. This stove requires 8 boxes of sauna stones.

Cozy Heat 18 Quattro TW is ideal for medium sauna rooms (317–635 cu. ft.).

Features

• Square design
• Wood-burning
• Steel construction
• Smoke gases are 6x cleaner
• German BIMSCH certificate
• Uses 25%–40% less fuel than comparable sauna stoves
• Boasts minimal safety clearances
• Mild and long-lasting heat
• Floor mount thru-wall
• 2-year warranty
• Designed and engineered in Estonia

Specifications

Installation Requirements

This stove is intended to be installed through a concrete or brick wall.

What's Included

• Outer frame of the heater
• Chimney pipe
• Heater body
• Cleaning hatch
• Heater door with glass
• Ash box
• Installation and operation manual
• 2-year warranty

Complete Your Setup

To install and operate this sauna heater properly, the following components are needed:

• Cozy Heat Traditional Split-Face Sauna Stones: 8 boxes
• Cozy Heat Premium Rounded Sauna Stones: 8 boxes

User Manuals