Cozy Heat Sauna Stove
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The Cozy Heat Sauna Stove is a hand crafted wood-burning sauna heater made in Estonia, where sauna bathing is part of everyday life. Designed for smaller traditional saunas, this Cozy wood-fired stove delivers gentle, long-lasting heat and is made for pouring water over hot stones to create rich, luxurious steam. Available in both 12 kW and 18 kW models, it is a compact, efficient choice for authentic wood-fired sauna bathing.
Key Features
- In-room wood-burning sauna stove for a traditional, off-grid sauna experience
- Two sizes: 12 kW for smaller rooms and 18 kW for larger, higher volume saunas
- Gentle, long-lasting heat ideal for pouring water over hot stones for soft, enveloping steam
- Engineered for efficiency with up to 25 to 40 percent less firewood use than many comparable stoves
- Clean combustion with smoke gases up to 6 times cleaner than typical wood stoves, with German BIMSCH certification
- Durable construction including a 5 mm thick stainless steel flame cutter in the hottest part of the stove
- Compact floor-mounted design that fits easily into custom indoor or cabin sauna layouts
- Designed and engineered in Estonia by a premium wood-fired sauna stove manufacturer
Required Components
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Sauna Stones:
- Cozy 12 kW: Minimum 265 lbs of sauna stones
- Cozy 18 kW: Minimum 353 lbs of sauna stones
- Chimney System: A certified, code compliant wood-burning sauna chimney and flue kit is required for safe installation.
What’s Included
- Cozy Heat wood-burning sauna stove (12 kW or 18 kW model)
- Outer frame of the heater
- Chimney connection outlet on top of the heater
- Heater body with integrated stone basket
- Heater door with glass viewing window
- Cleaning hatch and ash box
- Installation and Operation Manual
- 2-year manufacturer warranty (residential use)
Specifications: Cozy 12 kW
| Model | Cozy 12 |
| Heater Type | Wood-burning sauna stove, in-room, floor mounted |
| Power Output | 12 kW |
| Sauna Room Size | 210 to 423 cu ft (approximately 6 to 12 m³) |
| Stone Requirement | Minimum 265 lbs of sauna stones (10 to 15 cm) |
| Maximum Firewood Length | 12.99 in (329 mm) |
| Firewood Diameter | 3.15 to 4.72 in (80 to 120 mm) |
| Minimum Room Height | 72 in (1828 mm) |
| Flue Connection Location | Top |
| Heater Weight | 108 lbs |
| Shipping Weight With Stones | 350 lbs (approximate) |
| Stove Depth | 20.06 in (510 mm) |
| Stove Width | 16.92 in (430 mm) |
| Stove Height | 27.55 in (700 mm) |
| Primary Fuel | Wood |
| Country of Origin | Estonia |
Specifications: Cozy 18 kW
| Model | Cozy 18 |
| Heater Type | Wood-burning sauna stove, in-room, floor mounted |
| Power Output | 18 kW |
| Sauna Room Size | 317 to 635 cu ft (approximately 9 to 18 m³) |
| Stone Requirement | Minimum 353 lbs of sauna stones (10 to 15 cm) |
| Maximum Firewood Length | 15.74 in (400 mm) |
| Firewood Diameter | 3.15 to 4.72 in (80 to 120 mm) |
| Minimum Room Height | 82 in (2096 mm) |
| Flue Connection Location | Top |
| Heater Weight | 159 lbs |
| Shipping Weight With Stones | 511 lbs (approximate) |
| Stove Depth | 24.58 in (625 mm) |
| Stove Width | 19.68 in (500 mm) |
| Stove Height | 29.76 in (756 mm) |
| Primary Fuel | Wood |
| Country of Origin | Estonia |
Why Choose the Cozy Heat Sauna Stove?
- Authentic wood-fired sauna experience with mild, long-lasting heat and satisfying steam
- Efficient and eco conscious design that reduces wood consumption and emissions
- Compact footprint that fits easily in home, cabin, or backyard sauna builds
- High stone mass that stores heat and delivers smooth, consistent löyly throughout your session
- European craftsmanship with high quality materials and certified combustion performance
Shipping & Returns
- Ships: Typically within 3 to 7 business days (freight delivery with scheduled appointment)
- Delivery: Free standard U.S. shipping to most locations
- Returns: 14 day return policy on unused, uninstalled stoves in original packaging
Installation and Operation Manual
Frequently Asked Questions
How do I choose between the Cozy 12 kW and 18 kW models?
The Cozy 12 kW is designed for sauna rooms from about 210 to 423 cubic feet and uses at least 265 pounds of stones. The Cozy 18 kW is sized for larger rooms from about 317 to 635 cubic feet and uses at least 353 pounds of stones. If your sauna is bigger, has more glass or tile, or is in a colder climate, the 18 kW model is usually the better choice.
How many stones do I need and what type is best?
The Cozy 12 requires at least 265 pounds of sauna stones and the Cozy 18 requires at least 353 pounds. Use natural sauna stones such as olivine or peridotite in the 10 to 15 cm range. Avoid river rocks or decorative stones, since they can crack or shatter when heated. Many installers order an extra box so they can choose the best shapes for airflow and fit.
How efficient is the Cozy wood-burning sauna stove?
Cozy wood-fired sauna stoves are engineered for high combustion efficiency. They are designed to use approximately 25 to 40 percent less firewood than many comparable wood stoves while producing cleaner exhaust gases. This efficiency helps reduce fuel costs and supports more environmentally conscious sauna bathing.
How long does it take to heat the sauna?
Most saunas reach bathing temperature in about 45 to 75 minutes depending on room size, insulation, stone loading, and wood quality. The 18 kW model usually heats larger rooms more quickly because of its higher output and larger firebox.
Does the Cozy stove require a chimney?
Yes. A certified wood-burning chimney system is required. Use flue pipe and chimney components that are rated for wood-burning sauna stoves and that meet local building and fire codes. Professional installation is strongly recommended for safety and performance.
Do I need professional installation?
Professional installation is highly recommended. A qualified installer will configure the chimney, verify clearances to combustibles, and ensure the stove complies with local building and fire safety requirements for wood-burning appliances.
Why Buy From Us
FAQs
Shipping & Delivery
Free curbside shipping on all orders. White-glove delivery/setup available at checkout in most areas. We’ll confirm your preferred date after purchase.
Warranty
Full manufacturer warranty, registered at purchase. Need help with a claim? Our U.S. support team handles it directly with the brand.
Returns
New, uninstalled items can be returned within the brand’s policy window. We’ll help coordinate pickup and any restocking requirements.
Installation & Power
Most saunas/hot tubs require dedicated circuits. We provide spec sheets and can recommend licensed installers in your area.
