
Cozy Heat Quattro Series Thru-Wall Sauna Heaters
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.
A Stylish, Efficient Wood-Fired Sauna Stove with Convenient Thru-Wall Loading
Want the authentic warmth of a wood-burning sauna without the mess of firewood inside? The Cozy Heat Quattro Thru-Wall Sauna Stove combines the timeless tradition of a wood-fired sauna with a modern, space-saving design.
Handcrafted in Estonia, where sauna culture is deeply ingrained, this high-performance sauna heater provides mild, long-lasting heat, allowing you to ladle water over hot stones for a deep, relaxing steam sauna experience.
The thru-wall design allows you to load firewood from outside the sauna, keeping your space clean while enjoying the ambiance of a large glass viewing window that showcases the flickering flames.
With its sleek square design, the Quattro Thru-Wall brings a modern touch to any sauna while ensuring even heat distribution. Built with 5mm-thick stainless steel, this durable, fuel-efficient heater burns 25-40% less firewood than comparable models and produces 6x cleaner smoke gases for an eco-friendly sauna experience.
Whether you're setting up a home sauna, cabin retreat, or luxury spa, the Cozy Heat Quattro Thru-Wall Sauna Stove delivers superior style, efficiency, and performance.
Cozy Quattro Thru-Wall 12 Model:
Cozy Quattro Thru-Wall 18 Model:
Warranty: 2 years
Download the Installation and Operation Manual
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.”