Cozy Heat Thru-Wall Sauna Heater - Wood-Burning Sauna Stove, Up to 18kW
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Product Information
The Cozy Heat TW is a handcrafted Estonian wood-burning sauna stove, offered in 12 kW and 18 kW models.
Designed for thru‑wall installation and floor mounting, it heats small to medium saunas (210–635 cu ft).
With clean, low-smoke combustion and durable construction, it delivers traditional, long-lasting heat
ideal for steam bathing.
Product Features
This stove provides efficient wood-burning, easy thru-wall loading, and long-lasting heat with reduced
emissions.
Built with heavy-duty steel and a stainless flame cutter, it handles large firewood and supports
substantial sauna stone loads for robust steam.
Thru‑wall loading
Steel construction
Low-smoke emission
Heavy stone ready
Durable flame cutter
Cozy Heat Thru-Wall Sauna Heater
Dual Power Options:
12 kW model fits 210–423 cu ft saunas; 18 kW suits 317–635 cu ft spaces.
Thru‑Wall Loading:
Wood is conveniently added from outside the sauna to keep it tidy.
Low-Smoke Efficiency:
Burns 25–40% less wood and emits six times less smoke in line with German standards.
Stone Capacity:
Requires at least 265 lb (12 kW) or 353 lb (18 kW) of sauna stones.
Durable Build:
5 mm stainless steel flame cutter ensures long-term heat resilience.
Minimal Clearance Needed:
Compact safety distances simplify installation without compromising performance.
Additional Features
Clean-burning, space-savvy, robust stove tailored for traditional sauna enthusiasts.
Thru‑Wall Loading
Add wood from outside without entering the sauna.
Stone-Rich Steam
Supports ≥ 265 lb (12 kW) or ≥ 353 lb (18 kW).
Low-Smoke Burn
Up to six times cleaner combustion.
Stainless Flame Cutter
5 mm steel provides exceptional heat durability.
About Cozy Heat
Cozy Heat is a premium Estonian brand renowned for its handcrafted wood-burning sauna stoves. Built in Estonia—where sauna is a cherished tradition—Cozy Heat’s heaters blend modern engineering with timeless design.
They use 25–40% less wood, are 6× cleaner-burning, and meet stringent German BIMSCH TÜV standards.
Cozy Heat continues to elevate the sauna experience through efficient, ecological, and authentic Estonian craftsmanship.
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Choose Peak Primal Wellness for a personalized, community-driven approach to health. We prioritize your well-being with high-quality products, tailored solutions, and 24/7 support.
As a family-owned business, we build lasting relationships, offering authentic, effective solutions to help you achieve your wellness goals.
Join our thriving community and embark on a journey toward optimal health with passionate professionals who genuinely care. At Peak Primal Wellness, you're not just a customer—you're family.
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Clear, honest return policy
Specifications
| Brand | Cozy Heat |
| Models | TW 12 kW, TW 18 kW |
| Fuel | Wood logs |
| Room Size (12 kW) | 210–423 cu ft |
| Room Size (18 kW) | 317–635 cu ft |
| Firewood Size | 12 kW: ≤329 mm; 18 kW: ≤400 mm |
| Weight (12 kW) | 126 lb |
| Weight (18 kW) | 185 lb |
| Stone Requirement | 265 lb (12 kW), 353 lb (18 kW) |
| Safety Clearance | 12 kW: ~55″ F–B / ~33″ S–S; 18 kW: ~71″ F–B / ~39″ S–S |
| Emission | 6× cleaner, low‑smoke |
| Warranty | 2 years |
| Flue | Top |
Warranty & Returns
Return Policy
To request a return or refund, customers can use our contact form, email (info@peakprimalwellness.com) , or phone - (877) 689-4898. Once the product is inspected and confirmed to be in brand new condition, we will initiate the refund, which typically takes 5-7 business days to post back to the original payment method. Refunds can be applied via the customer’s preferred method, including card or bank transfer. Shipping instructions and the return address will be provided upon contacting customer service. Please include photos if the product arrives damaged. Click here to view our complete return policy for more details.
Shipping Policy
Customers may contact us by phone or email anytime to inquire about the status of their order. While we may not always have a tracking link available before the order ships, we are happy to check its current status for you. If an item is never received, please contact us immediately. We will promptly file a claim on your behalf and ship a replacement to ensure you receive your product as soon as possible. Click here to view our complete Shipping policy for more details.
Frequently Asked Questions
Can I load wood without entering the sauna?
Yes – the thru‑wall design lets you add wood from outside effortlessly.
Which size matches my sauna?
Choose 12 kW for 210–423 cu ft or 18 kW for 317–635 cu ft saunas.
How much stone is needed?
Minimum 265 lb for the 12 kW and 353 lb for the 18 kW model.
What are the safety clearances?
12 kW: ~55″ F–B, ~33″ side; 18 kW: ~71″ F–B, ~39″ side.
Does it burn clean?
Yes – certified for low-smoke; burns 25–40% less wood.
Is it easy to install?
Yes – floor-mount thru-wall design with top flue and compact space needs.
