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Sauna One

Cozy Heat O Thru-Wall Sauna Stove

Cozy Heat O Thru-Wall Sauna Stove

Wood-Burning Sauna Stove, Up to 18kW

Model: COZY O-TW

SKU: 4745010348044

The Cozy Heat O TW is a through-the-wall wood-burning sauna stove that lets you load firewood from outside your sauna room! Hand-made in Estonia, where sauna is a way of life, this wood-fired sauna stoves is engineered for mild, long-lasting heat. Pouring water over hot stones creates intense steam to further enhance your sauna experience. 

  • 12kW - for saunas from 210 to 423 cu.ft.
  • 18kW - for saunas from 318 to 636 cu.ft.

Sauna stones sold separately.

$1,790.00 USD
$1,790.00 USD
Sale Sold out
Tax included.
Kilowatt
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  • Description
  • Features
  • Includes
  • Specifications
  • Technical

COZY has taken the ancient craft of building a sauna to a higher level. The part of a wood-burning heater that must be the strongest, the flame cutter, is made of sturdy, 5mm-thick stainless steel making COZY heaters extremely durable. 

This unique wood-fired sauna stove is hand-made in Estonia, where sauna bathing is ingrained in the national culture.

The Cozy Heat O wood-burning sauna stoves are perfect for mild and long-lasting heat, designed for pouring water over hot stones to create intense and luxurious steam for a more gratifying sauna experience. At the heart of the Cozy Heat O is its innovative circular rim design, which not only enhances the heater's aesthetic appeal, but also ensures efficient heat distribution throughout your sauna space.

  • 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 thru-wall
  • Sauna room sizes:
  • Stone Requirements:
  • 2-Year Warranty
  • Designed and engineered in Estonia

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

ModelCozy O Thru-Wall 12
Kilowatt Rating12kW
Primary FuelWood
Maximum Firewood Length2.99" (329mm)
Diameter of Firewood3.14" to 4.72" (80mm-120mm)
Minimum Cubic Feet210 Cu. Ft.
Maximum Cubic Feet423 Cu. Ft.
Minimum Room Height72" (1828mm)
Flue Connection LocationTop
Heater Weight125 lbs
Shipping Weight with Sauna Stones367 lbs
Safety Distance Front to Back55.1" (1400mm)
Safety Distance Right to Left33.06" (840mm)
Stove Depth26.37" (670 mm)
Stove Width17.71" (450 mm)
Stove Height27.55" (700 mm)
ModelCozy O Thru-Wall 18
Kilowatt Rating18kW
Primary FuelWood
Maximum Firewood Length15.74" (400mm)
Diameter of Firewood3.14" to 4.72" (80mm-120mm)
Minimum Cubic Feet317 Cu. Ft.
Maximum Cubic Feet635 Cu. Ft.
Minimum Room Height82" (2096mm)
Flue Connection LocationTop
Heater Weight181 lbs
Shipping Weight with Sauna Stones533 lbs
Safety Distance Front to Back59.43" (1510mm)
Safety Distance Right to Left39.75" (1010mm)
Stove Depth30.70" (780 mm)
Stove Width19.88" (505 mm)
Stove Height29.76" (756 mm)

Installation and Operation Manual