COZY HEAT SW THRU-WALL SAUNA STOVE

from $2,725.00

With its convenient through-the-wall design, which lets you feed the firebox from outside your sauna, the Cozy SW-TW sets the standard for wood-burning sauna stoves. Hand-crafted in Estonia, where sauna is a tradition. Wood-fired sauna stoves produce a mild and long-lasting heat, and are designed for ladling water over hot stones to create a satisfying steam sauna. 

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

    Requires 6 boxes of Standard Stones (Split Face, 10-15cm, 44lbs) or 8 boxes of Rounded Stones (Rounded Olivine, 10-15cm, 44lbs)

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

    Requires 8 boxes of Standard Stones (Split Face, 10-15cm, 44lbs) or 11 boxes of Rounded Stones (Rounded Olivine, 10-15cm, 44lbs)

With its convenient through-the-wall design, which lets you feed the firebox from outside your sauna, the Cozy SW-TW sets the standard for wood-burning sauna stoves. Hand-crafted in Estonia, where sauna is a tradition. Wood-fired sauna stoves produce a mild and long-lasting heat, and are designed for ladling water over hot stones to create a satisfying steam sauna. 

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

    Requires 6 boxes of Standard Stones (Split Face, 10-15cm, 44lbs) or 8 boxes of Rounded Stones (Rounded Olivine, 10-15cm, 44lbs)

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

    Requires 8 boxes of Standard Stones (Split Face, 10-15cm, 44lbs) or 11 boxes of Rounded Stones (Rounded Olivine, 10-15cm, 44lbs)

Size:
Sauna Stones:
HARVIA CHIMNEY ASSEMBLY KIT FOR FLAT ROOF
HARVIA CHIMNEY ASSEMBLY KIT FOR FLAT ROOF
from $1,391.00
Color:
HARVIA PIPE ADAPTER
HARVIA PIPE ADAPTER
$125.00 $147.00
COZY HEAT STANDARD SAUNA STONES
COZY HEAT STANDARD SAUNA STONES
$120.00 $160.00
COZY HEAT ROUNDED SAUNA STONES
COZY HEAT ROUNDED SAUNA STONES
$160.00 $180.00

COZY has taken the craft of building a wood-fired sauna stove to a higher level. The SW-TW’s convenient through-the-wall design lets you feed the firebox from outside your sauna so you don’t need to bring wood into the room.

Cozy Heat’s SW-TW wood-burning sauna stoves are made in Estonia, where sauna bathing is a way of life. Designed for performance and durability and strength. The part of the wood-burning heater that must be the strongest, the flame cutter, is made of sturdy, 5mm-thick stainless steel making COZY heaters extremely robust.

Wood-fired sauna stoves produce a mild and long-lasting heat and are designed for ladling water over hot stones to create the most satisfying steam sauna. 

Experience the epitome of comfort and style with the Cozy Heat SW-TW wood stove.

    • 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:

      12kW - 210 to 423 cu.ft.

      18kW - 318 to 636 cu.ft.

    • Stone Requirements:

      12kW - minimum of 265lbs of stones

      18kW - minimum of 353lbs of stones

      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 (Additional freight charges will apply).

    • 2-Year Warranty

    • Designed and engineered in Estonia

  • Cozy SW-Thru-Wall 12

    • Kilowatt Rating: 12kW

    • Primary Fuel: Wood

    • Maximum Firewood Length: 2.99" (329mm)

    • Diameter of Firewood: 3.14" to 4.72" (80mm-120mm)

    • Minimum Cubic Feet: 210 Cu. Ft.

    • Maximum Cubic Feet: 423 Cu. Ft.

    • Minimum Room Height: 72" (1828mm)

    • Flue Connection Location: Top

    • Heater Weight: 161 lbs

    • Shipping Weight with Sauna Stones: 425 lbs

    • Safety Distance Front to Back: 55.89" (1420mm)

    • Safety Distance Right to Left: 33.85" (860mm)

    • Stove Depth: 27.16" (690 mm)

    • Stove Width: 19.29" (490 mm)

    • Stove Height: 32.12" (816 mm)

    Cozy SW-Thru-Wall 18

    • Kilowatt Rating: 18kW

    • Primary Fuel: Wood

    • Maximum Firewood Length: 15.74" (400mm)

    • Diameter of Firewood: 3.14" to 4.72" (80mm-120mm)

    • Minimum Cubic Feet: 317 Cu. Ft.

    • Maximum Cubic Feet: 635 Cu. Ft.

    • Minimum Room Height: 82" (2096mm)

    • Flue Connection Location: Top

    • Heater Weight: 236 lbs

    • Shipping Weight with Sauna Stones: 633 lbs

    • Safety Distance Front to Back: 60.22" (1530mm)

    • Safety Distance Right to Left: 40.54" (1030mm)

    • Stove Depth: 31.49" (800 mm)

    • Stove Width: 21.65" (550 mm)

    • Stove Height: 34.25" (870 mm)

    • Outer frame of the heater

    • Chimney pipe

    • Heater body

    • Cleaning hatch

    • Heater door with glass

    • Ash box

    • Installation and operation manual

    • 2-Year Warranty

    • Current ETA: 1-2 weeks. Shipping lead time is subject to change.

    • FREE shipping within the contiguous United States.

    • The weight or packaging of this product requires delivery by special appointment, and on a wooden pallet.

    • The driver is responsible for curbside delivery only and will lower the items to ground level.

    • Prior to shipping this product, we’ll contact the customer to share shipment details and discuss any extenuating delivery circumstances that may complicate or cause additional delivery expenses.

    **If you’re in Canada, please reach out for a shipping quote. We will need your customs broker information for all palletized orders. For more info on import duties and fees, visit our FAQs.

  • Installation Manual