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Cozy Heat OG Thru-Wall Sauna Stove With Sauna Stones [COZY OG-TW]

From $3,299.97 $3,499.97

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Product Information
Step into the timeless tradition of sauna bathing with the Cozy Heat OG Thru-Wall Sauna Stove—a handcrafted wood-burning heater designed in Estonia, the birthplace of sauna culture. With its innovative thru-wall loading system, you can fuel your sauna from outside the room, keeping the interior clean and uninterrupted while you relax.

Engineered for long-lasting durability and efficiency, the OG-TW features a 5mm-thick stainless steel flame cutter, ensuring years of reliable performance. Its elegant trilateral design not only enhances heat distribution but also adds a touch of sophistication to any sauna space.

Consuming 25–40% less fuel than traditional stoves and producing 6x cleaner smoke gases, this sauna heater is an eco-conscious choice for authentic sauna enthusiasts. Whether for personal wellness or shared experiences with family and friends, the Cozy Heat OG-TW transforms your sauna into a sanctuary of warmth, relaxation, and rejuvenation.

Key Features

Thru-Wall Design – Load firewood from outside the sauna for convenience, cleanliness, and uninterrupted relaxation.

Efficient Heating – Delivers powerful heat output between 12–18 kW, suitable for sauna rooms from 210 to 636 cu. ft.

Durable Construction – Built with 5mm stainless steel flame cutter for exceptional longevity.

Eco-Friendly Performance – Uses up to 40% less wood and produces significantly cleaner smoke gases compared to traditional stoves.

Elegant Design – Sleek, trilateral body with glass door complements modern sauna aesthetics.

Authentic Sauna Experience – Provides natural wood-fired heat and ambiance, replicating the traditional Estonian sauna.

Specifications
Models Available: OG-TW 12 / OG-TW 18

Dimensions (D x W x H):

OG-TW 12: 27.36" x 17.32" x 27.91"

OG-TW 18: 21.69" x 22.04" x 29.72"

Primary Fuel: Wood

Power Output: 12–18 kW

Heating Capacity: 210–636 cu. ft.

Material: Stainless Steel

Heater Weight: 139–199 lbs

Flue Connection: Top

Firewood Diameter: 3.15"–4.72"

Stones Included: No

What's Included
(1) Outer Frame of Heater

(1) Chimney Pipe

(1) Heater Body

(1) Cleaning Hatch

(1) Heater Door with Glass

(1) Ash Box

(1) Installation & Operation Manual

(1) 2-Year Manufacturer’s Warranty

Warranty Information

The Cozy Heat OG-TW Sauna Stove is backed by a 2-year manufacturer’s warranty, covering material and workmanship defects. Warranty ensures long-term peace of mind, reinforcing the durability and reliability of this premium sauna stove.

Questions Before Ordering?

Call 1-877-477-2853 Monday–Friday, 9am–6pm ET, or send us a message. We can help verify fit, compatibility, delivery requirements and warranty details.

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