Cozy Heat OG Thru-Wall Sauna Stove - Wood-Burning Sauna Stove, Up to 18kW
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Product Information
The Cozy Heat OG TW is a premium, thru‑wall wood-burning sauna stove handcrafted in Estonia. Available
in 12 kW and 18 kW models, it heats spaces from 210 to 635 cu ft.
Featuring clean-burning German BIMSCH certification, minimal safety clearances, and a large glass door,
it delivers gentle, long-lasting heat ideal for intense steam sessions.
Product Features
This stove offers eco-efficient wood-burning, clean emissions, and easy fire loading from outside the
sauna.
It’s built with durable steel, includes a stainless flame cutter, and supports intense steam with heavy
stone capacity.
Thru‑wall loading
Steel craftsmanship
Low emissions
High stone capacity
BIMSCH eco‑certified
Cozy Heat OG Thru-Wall Sauna Stove
Through‑Wall Loading:
Reload firewood from outside the sauna, keeping the interior clean and undisturbed.
12 kW & 18 kW Options:
12 kW fits 210–423 cu ft; 18 kW is ideal for 317–635 cu ft rooms.
Heavy Stone Support:
Requires up to 353 lb of stones for steam—ensuring rich, satisfying sauna sessions.
Efficient & Clean:
Uses 25–40% less fuel with six times cleaner smoke under German BIMSCH standards.
Durable Design:
5 mm stainless flame cutter and high-grade steel ensure lasting build quality.
Minimal Clearance:
Designed for floor-mounting with compact safety distances, simplifying installation.
Additional Features
Stylish, efficient, and durable—this stove simplifies loading, prolongs burn, and elevates sauna ambiance.
Through‑Wall Loading
Maintain interior cleanliness by refilling from outside the sauna.
Large Stone Capacity
Accommodates up to 353 lb stones for rich steam.
Eco‑Efficient Burn
Uses 25–40% less wood with cleaner emissions.
Stainless Flame Cutter
5 mm steel ensures durability under high heat.
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.
Why Choose Us?
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, and fast. Our return policy is built to protect your investment, not dodge responsibility.
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Frustrating, misleading return policies
Clear, honest return policy
Specifications
| Brand | Cozy Heat |
| Models | OG TW 12 kW, 18 kW |
| Fuel Type | Wood logs |
| Room Size (12 kW) | 210–423 cu ft |
| Room Size (18 kW) | 317–635 cu ft |
| Max Firewood (18 kW) | 15.74″ (400 mm) |
| Weight (12 kW) | 139 lb |
| Weight (18 kW) | 199 lb |
| Stone Req. (12 kW) | ≥ 265 lb |
| Stone Req. (18 kW) | ≥ 353 lb |
| Emission Rating | 6× cleaner (BIMSCH) |
| Warranty | 2 years |
| Flue Connection | 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 reload without entering the sauna?
Yes, the thru‑wall design allows loading firewood from outside.
Which model suits my sauna?
12 kW for 210–423 cu ft; 18 kW for 317–635 cu ft spaces.
How many stones are needed?
Minimum 265 lb for 12 kW, 353 lb for 18 kW to ensure proper steaming.
Is it eco‑friendly?
Yes, it meets German BIMSCH standards for cleaner smoke and fuel efficiency.
What flame cutter material is used?
Crafted from robust 5 mm stainless steel for high-temperature durability.
Required safety clearance?
Minimal floor-mount design requires compact clearance—small distances to combustibles.
Does it include stones?
No, stones are sold separately and vary by model size.
