Cozy Heat SW Sauna Stove
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The Cozy Heat SW Wood-Burning Sauna Stove combines a bold, modern look with authentic wood-fired sauna performance. Hand-crafted in Estonia, where sauna bathing is a national tradition, the SW delivers mild, long-lasting heat over a deep stone mass. Its tall vertical body, steel construction, and large glass fire-view door create a striking centerpiece for home saunas while still delivering the classic wood-burning steam that serious sauna users expect.
Key Features
- In-room wood-burning sauna stove for an authentic off-grid sauna experience
- Modern vertical design that distributes heat efficiently and looks at home in upscale sauna builds
- Steel construction with robust internal components designed for long life and heavy use
- Clean-burning performance that produces cleaner exhaust than many traditional wood stoves
- High-efficiency combustion that uses less wood while still delivering powerful heat and steam
- Large stone capacity for deep thermal storage and soft, long-lasting löyly
- Floor-mounted installation that works in a wide variety of sauna layouts
- Designed and manufactured in Estonia by a specialist wood-fired sauna stove maker
Required Components
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Sauna Stones:
- Cozy SW 12 kW: Minimum 265 lbs of sauna stones
- Cozy SW 18 kW: Minimum 353 lbs of sauna stones
- Chimney System: A compatible, code-compliant wood-burning sauna chimney and flue kit is required for safe installation.
What’s Included
- Cozy Heat SW wood-burning sauna stove (12 kW or 18 kW model)
- Outer heater frame
- Chimney connection pipe (per manufacturer kit)
- Heater body with 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 SW 12 kW
| Model | Cozy SW 12 |
| Heater Type | Wood-burning sauna stove, floor mounted, in-room installation |
| 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 | 143 lbs |
| Shipping Weight With Stones | 407 lbs |
| Safety Distance, Front to Back | 49.98 in (1270 mm) |
| Safety Distance, Left to Right | 27.94 in (710 mm) |
| Stove Depth | 21.25 in (540 mm) |
| Stove Width | 19.29 in (490 mm) |
| Stove Height | 32.12 in (816 mm) |
| Primary Fuel | Wood |
| Country of Origin | Estonia |
Specifications: Cozy SW 18 kW
| Model | Cozy SW 18 |
| Heater Type | Wood-burning sauna stove, floor mounted, in-room installation |
| 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 | 209 lbs |
| Shipping Weight With Stones | 606 lbs |
| Safety Distance, Front to Back | 54.32 in (1380 mm) |
| Safety Distance, Left to Right | 34.64 in (880 mm) |
| Stove Depth | 25.59 in (650 mm) |
| Stove Width | 21.65 in (550 mm) |
| Stove Height | 32.12 in (816 mm) |
| Primary Fuel | Wood |
| Country of Origin | Estonia |
Why Choose the Cozy Heat SW?
- Authentic wood-fired sauna experience with mild, stable heat and satisfying steam for traditional bathing
- Efficient, eco-conscious combustion that uses less wood and produces cleaner exhaust than many standard stoves
- High stone mass that stores heat and delivers smooth, enveloping löyly even during longer sessions
- Contemporary European styling that looks at home in high-end cabins, custom saunas, and wellness spaces
Shipping and 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
What is the difference between the Cozy SW 12 kW and 18 kW models?
The 12 kW Cozy SW is ideal for sauna rooms from 210 to 423 cubic feet. The 18 kW Cozy SW is designed for larger rooms from 317 to 635 cubic feet and supports a larger stone mass. If your sauna is bigger, has more glass or tile, or is located in a colder climate, the 18 kW model is usually the better choice.
Does the Cozy SW require a chimney?
Yes. A certified wood-burning chimney system is required. Use a flue and chimney kit that is rated for wood-burning sauna stoves and complies with local building and fire codes. Professional installation is strongly recommended for safety.
How many stones do I need for each model?
The Cozy SW 12 requires a minimum of 265 pounds of sauna stones. The Cozy SW 18 requires a minimum of 353 pounds. Many installers recommend buying an additional box of stones so you can choose shapes that fit well and allow for good airflow inside the basket.
What type of stones should I use?
Use natural sauna stones such as olivine or peridotite in the 10 to 15 cm range. Do not use river rocks or decorative stones, since they can crack or explode when heated. Proper sauna stones store heat efficiently and help create smoother, more pleasant steam.
How long does it take to heat the sauna?
Most saunas reach bathing temperature in about 45 to 75 minutes depending on insulation, room size, stone loading, and wood quality. The 18 kW model typically heats larger rooms more quickly thanks to its higher output and larger firebox.
Is the glass viewing window heat-resistant?
Yes. The Cozy SW uses heat-resistant, tempered glass so you can safely enjoy the view of the fire while maintaining a comfortable sauna environment.
Do I need professional installation?
Professional installation is strongly recommended. A qualified installer will configure the chimney system, verify clearances to combustibles, and make sure 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.
