
Cozy Heat SW Series Thru-Wall Sauna Stove
Ships in ~ 3-5 business days

Professional Installation Not Required.
Affirm, PayTomorrow, Klarna, HSA/FSA (TruMed) & More.

Buy with confidence. Contact an SF Sauna specialist.
Buy with confidence. Contact an SF Sauna specialist.
The Perfect Blend of Convenience, Performance, and Timeless Sauna Tradition
Looking for the ultimate sauna heater that keeps your space clean while delivering exceptional warmth? The Cozy Heat SW Thru-Wall Sauna Stove is the perfect choice. Handcrafted in Estonia, where saunas are an integral part of daily life, this high-efficiency wood-burning sauna stove delivers mild, long-lasting heat while allowing you to pour water over hot stones for a deep, luxurious steam sauna experience.
The thru-wall design allows you to load firewood from outside your sauna, keeping your space clean and free of wood debris. Plus, its sleek cylindrical shape isn’t just for aesthetics—it also enhances heat distribution, ensuring consistent, even warmth throughout your sauna.
Built for maximum durability, this 5mm-thick stainless steel heater burns 25-40% less wood and meets German BIMSCH emission standards, producing 6x cleaner smoke gases.
Whether you’re setting up a backyard sauna, off-grid retreat, or home spa, the Cozy Heat SW Thru-Wall Stove is the perfect combination of elegance, efficiency, and performance.
Cozy SW Thru-Wall 12 Model:
Cozy SW Thru-Wall 18 Model:
Warranty: 2 Years
Download the Installation Manual.
Upgrade your sauna with a wood-fired heater that blends modern design, traditional performance, and convenient functionality.
Order Processing: Once you place your order, you'll receive an order confirmation email. Please allow 1-3 business days for processing. If there are any unexpected delays, we’ll reach out to you immediately.
Shipping Methods:
Delivery Timeline:
Delivery Timeline:
Receiving Your Shipment: Inspect your shipment for damage before signing the delivery receipt. For any issues, mark “DAMAGED, NEEDS REVIEW,” take photos, and contact us within 2-3 business days.
Installation & Setup:
Saunas are typically very simple to put together. Some are as easy as clamping the 4 walls together.
Electrical Requirements:
Professional Installation: If you require assistance with setup, we can refer you to our preferred installation partners.
Space Considerations: Ensure proper ventilation and clearance before installation. Saunas should be placed on a **level, dry surface** away from moisture-sensitive materials.
Contact Us: To connect with an installer in your area or get a price quote, please call us at 888-995-4450 or email us at info@selectfitnessusa.com.
Sauna Warranty Coverage:
Select Fitness is an authorized dealer for every sauna we sell. All saunas include the manufacturer's original warranty.
Typical warranty coverage includes:
For specifics on your sauna’s warranty, check the product details or contact us for more information.
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When You Work With Our Sauna Specialist, You Get:
Complete the form. A knowledgeable sauna specialist will contact you to help you choose the best sauna for your needs.
“From the first consultation to delivery, Select Fitness made buying my sauna a seamless experience. The team answered all my questions, and now I get to enjoy the best part of my day—relaxing in my new infrared sauna.”