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.

Trilateral Design: Distinctive open-stone construction combines clean lines and a contemporary architectural profile.

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 175 lb of stones for the 12 kW model and 240 lb for the 18 kW model.

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 Warranty: Backed by a limited 2-year warranty.

Model: COZY OG-TW

Product Type: Through-Wall Wood-Burning Sauna Stove

Available Outputs: 12 kW / 18 kW

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

Primary Fuel: Wood

Installation: Floor-Standing, Through-Wall

Firebox Configuration: Through-Wall / External Loading

Design: Trilateral Open-Stone Construction

Construction: Steel

Flame Cutter: 5 mm Thick Stainless Steel

Flue Connection: Top

Heater Door: Glass

Sauna Stones: Required, Sold Separately

12 kW Stone Requirement: Minimum 175 lb

18 kW Stone Requirement: Minimum 240 lb

Country of Manufacture: Estonia

Warranty: Limited 2 Years

Included

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

Sauna stones are required and sold separately. 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 OG-TW 12 kW Sauna Stove

Width: 19.5 in (49.5 cm)

Depth: 27.4 in (69.6 cm)

Height: 27.9 in (70.9 cm)

Overall Dimensions: 19.5 W × 27.4 D × 27.9 H in (49.5 × 69.6 × 70.9 cm)

Stove Weight: 126 lb (57.2 kg)

Cozy Heat OG-TW 18 kW Sauna Stove

Width: 22 in (55.8 cm)

Depth: 32.1 in (81.5 cm)

Height: 29.7 in (75.5 cm)

Overall Dimensions: 22 W × 32.1 D × 29.7 H in (55.8 × 81.5 × 75.5 cm)

Stove Weight: 199 lb (90.3 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