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Cozy Heat SW 18kW Wood-Burning Sauna Stove | COZYSW18

Cozy Heat SW 18kW Wood-Burning Sauna Stove

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SKU COZYSW18

Handcrafted in Estonia—where sauna bathing is a way of life—the Cozy Heat SW 18kW Wood-Burning Sauna Stove reflects refined craftsmanship and functional design.

The Cozy 18 SW features a sleek, contemporary cylindrical shape that supports even heat distribution and steady temperature control. Its smooth curves add a modern visual touch while contributing to consistent performance. Built for durability, the flame cutter—one of the most critical components—is made from 5 mm-thick stainless steel to withstand sustained high temperatures.

Designed for mild, long-lasting heat, the Cozy 18 SW allows water to be ladled over heated stones to produce rich, satisfying steam, enhancing the traditional wood-fired sauna experience.

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

Cozy Heat 18 SW is ideal for medium to large sauna rooms (317–635 cu. ft.).

Features

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

Specifications

Sauna Room Size
317–635 cu. ft.
Power Rating
18 kW
Minimum Room Height
82" (2080 mm)
Stone Capacity
353 lb (160 kg)
Stone Size
4"–6" (10–15 cm)
Dimensions
21.65"W × 25.59"D × 34.25"H (550 × 650 × 870 mm)
Weight
209 lb (95 kg)
Shipping Weight (With Stones)
606 lb (275 kg)
Maximum Firewood Length
15.74" (400 mm)
Diameter of Firewood
3.15"–4.72" (80–120 mm)
Flue Connection Location
Top
Safety Clearance (Top)
52.75" (1340 mm)
Safety Clearance (Sides)
9.05" (230 mm)
Safety Clearance (Back)
9.05" (230 mm)
Safety Clearance (Front)
19.68" (500 mm)

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

Installation and Operation Manual

Warranty

Outstanding Customer Satisfaction

Trusted by customers for comfort, quality, and lasting peace of mind.

Full Warranty Included

Authorized dealer pricing with manufacturer-backed coverage.

Flexible Financing

Monthly payments from 0% APR with Shop Pay.

Expert Support

Reach our team by live chat, phone, or email — M–F, 9am–5pm EST.

Customers Are Saying

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Powerful, Efficient Wood-Fired Sauna Heat

Cozy Heat SW 12kW Thru-Wall Wood-Burning Sauna Stove | COZYSWTW12

Clean Burn Technology

Engineered to exceed strict German BIMSCH clean-burn standards, these stoves deliver powerful, consistent heat while using 25–40% less wood per session. That means faster heat-up times, lower fuel costs, and cleaner air.

Cozy Heat SW 12kW Thru-Wall Wood-Burning Sauna Stove | COZYSWTW12

Built to Last for Decades

Precision-welded, thick steel construction retains heat longer and withstands years of high-temperature sauna sessions without warping or fatigue.

Cozy Heat SW 12kW Thru-Wall Wood-Burning Sauna Stove | COZYSWTW12

Proven Sauna Performance

Experience rich, even heat that fills the room quickly and holds steady. Less waiting. More sweating. A better sauna ritual every time.