Cozy Heat elevates traditional sauna stove design with the OG 18kW Wood-Burning Sauna Stove, engineered for durability, performance, and refined aesthetics. One of the most critical components—the flame cutter—is constructed from 5mm-thick stainless steel to support long-term, high-temperature use.

Handcrafted in Estonia, where sauna bathing is a way of life, the Cozy OG 18kW Wood-Burning Sauna Stove delivers steady, long-lasting heat and is designed for pouring water over heated stones to create smooth, consistent steam. Its contemporary trilateral design features clean lines and subtle curves, making it a functional centerpiece that complements both traditional and modern sauna interiors.

Features

• Artistically inventive design
• 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
• For sauna rooms from 317 to 635 cubic feet
• Stone Requirements:
  • Minimum of 353 lbs of stones (Required 8 boxes sold separately)
    • 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. 
• 2-year warranty
• Designed and engineered in Estonia

Specifications

Power Rating
18kW

Room Size
317-635 cubic feet

Minimum Room Height
82"

Stone Capacity
353 lbs

Stone Size
4" to 6"

Maximum Firewood Length
15.74" (400 mm)

Diameter of Firewood
3.15" to 4.72" (80mm - 120mm)

Flue Connection Location
Top

Heater Weight
176 lbs

Shipping Weight with Stones
528 lbs

Stove Dimensions
Width: 22.04"
Depth: 25.78"
Height: 29.72"

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

Add-Ons

The following items are essential for proper installation and operation of this product:

• Cozy Heat Traditional Split-Face Sauna Stones (Requires 8 Boxes)
• Cozy Heat Premium Rounded Sauna Stones (Requires 8 Boxes)

User Manuals