Through-Wall Firebox: Allows firewood to be loaded from outside the sauna room or an adjoining space.

Two Output Options: Available in 12 kW and 18 kW configurations for sauna rooms from 210 to 635 cu. ft.

Circular-Rim Design: Distinctive open-stone construction gives the O-TW its signature architectural profile.

Complete Stove & Stone Package: Includes the selected Cozy O-TW sauna stove and corresponding sauna stones.

Wood-Burning Operation: Provides traditional solid-fuel sauna heating without an electric heater or external heater control.

High-Capacity Stone Design: Requires a minimum of 200 lb of stones for the 12 kW model and 350 lb for the 18 kW model.

Package Stones Included: Includes 220 lb of sauna stones with the 12 kW package or 352 lb with the 18 kW package.

5 mm Stainless Steel Flame Cutter: Heavy-duty component designed for the high-temperature environment inside the stove.

Steel Construction: Durable construction designed for wood-fired sauna environments.

Glass Heater Door: Provides visibility into the firebox from the loading side.

Efficient Combustion: Cozy states that its design can use approximately 25–40% less firewood than comparable sauna stoves.

Lower-Emission Design: Cozy describes its combustion system as producing significantly cleaner smoke gases.

Floor-Standing Through-Wall Installation: Designed for floor mounting with the firebox extending through the applicable wall.

Top Flue Connection: Both configurations specify a top chimney/flue connection.

Made in Estonia: Designed, engineered, and handmade in Estonia.

2-Year Consumer Warranty: Backed by a limited 2-year warranty for consumer use.

Package Model: COZY O TW PKG

Product Type: Through-Wall Wood-Burning Sauna Stove Package

Available Outputs: 12 kW / 18 kW

Overall Sauna Room Range: 210–635 cu. ft.

Primary Fuel: Wood

Installation: Floor-Standing, Through-Wall

Design: Circular-Rim Open-Stone Construction

Firebox Configuration: Through-Wall / External Loading

Flue Connection: Top

Construction: Steel

Flame Cutter: 5 mm Thick Stainless Steel

Heater Door: Glass

12 kW Minimum Stone Requirement: 200 lb

12 kW Package Stone Quantity: 220 lb

18 kW Minimum Stone Requirement: 350 lb

18 kW Package Stone Quantity: 352 lb

Country of Manufacture: Estonia

Consumer Warranty: Limited 2 Years

Included

• Selected Cozy Heat O-TW Wood-Burning Sauna Stove
• Stove Outer Frame
• Chimney Pipe
• Heater Body
• Cleaning Hatch
• Heater Door with Glass
• Ash Box
• Corresponding Sauna Stones
• Installation and Operation Manual
• 2-Year Limited Consumer Warranty

The package includes sauna stones. The included chimney pipe should not be assumed to constitute a complete chimney/flue system. Through-wall construction and additional site-specific chimney and fire-protection components may be required.

Cozy Heat O-TW 12 kW Sauna Stove

Width: 17.7 in (45 cm)

Depth: 26.4 in (67.1 cm)

Height: 27.6 in (70 cm)

Overall Dimensions: 17.7 W × 26.4 D × 27.6 H in (45 × 67.1 × 70 cm)

Stove Weight: 125 lb (56.7 kg)

Cozy Heat O-TW 18 kW Sauna Stove

Width: 19.9 in (50.6 cm)

Depth: 31 in (78.8 cm)

Height: 29.8 in (75.6 cm)

Overall Dimensions: 19.9 W × 31 D × 29.8 H in (50.6 × 78.8 × 75.6 cm)

Stove Weight: 181 lb (82.1 kg)

Shipment: This sauna heater system ships via scheduled freight delivery. The shipment arrives secured on a wooden pallet and protected with three-ply cardboard packaging.

Delivery: A delivery appointment is required. The freight carrier provides delivery service only, with limited assistance available at the delivery location.

Delivery Requirements: Prior to shipment, we may contact you to confirm delivery details and identify any access restrictions or special handling requirements that may affect delivery.

Shipping Rate: Shipping costs are determined based on location.

Accessory Freight: Eligible sauna accessories may be consolidated with the heater shipment to help minimize separate freight charges.

Cozy-Heat-Sauna-Stove-IOM-9.2026.pdf