
Product Information
The Cozy Heat Quattro TW is a high-efficiency, through‑the‑wall wood‑burning sauna stove.
Handcrafted from premium steel in Estonia, it heats
210–636 cu ft
spaces with mild, long‑lasting warmth.
Featuring a minimalist look, large viewing window, and eco‑certified design, it’s ideal for home or
commercial sauna use.



Product Features
This stove offers high-efficiency combustion, low emissions, and safe thru‑wall loading.
It requires minimal clearance and uses 25–40% less fuel, producing mild radiant heat ideal for steam
bathing.

Cozy Heat Quattro Thru-Wall 12 kW Sauna Stove
Through‑Wall Loading:
Firewood is loaded from outside the sauna, maintaining a clean, no‑mess interior.
Two Power Options:
12 kW heats 210–423 cu ft spaces
Premium Construction:
Constructed using 5 mm-thick stainless steel flame cutter for lasting durability.
Eco‑Certified Design:
Meets strict emission standards, emitting up to six times less smoke than traditional stoves.
Minimal Clearances:
Requires small safety distances—23 cm to combustibles—simplifying installation.
Visual Ambiance:
Large glass door presents the glowing fire, enhancing sauna atmosphere.
Additional Features
This sauna heater features eco-friendly combustion, using up to 40% less wood and producing 6× cleaner smoke. A durable 5 mm stainless steel flame cutter enhances longevity, while its minimal clearance design requires only 23 cm from combustible surfaces, ensuring efficient and space-saving installation.

Eco‑Friendly Burn
Consumes up to 40% less wood with 6× cleaner smoke.

Dual‑Power Models
Available in 12 kW and 18 kW for different sauna volumes.

Stainless Flame Cutter
5 mm steel blade boosts longevity.

Minimal Clearance Design
Needs only 23 cm to combustible surfaces.
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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Specifications
Brand | Cozy Heat |
Models | Quattro TW 12 kW |
Weight | 159 lb |
Room Size | 210–423 cu ft |
Fuel Type | Wood logs |
Material | Steel w/ 5 mm stainless flame cutter |
Emission | 6× cleaner, BIMSCH‑certified |
Warranty | 2 years |
Flue Location | 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 wood be loaded from outside?

Yes, the thru‑wall design allows firewood to be added from outside the sauna room.
Which model fits my sauna size?

Use 12 kW for 210–423 cu ft. saunas.
How clean is its emission?

Emissions are six times cleaner and BIMSCH‑certified for low smoke output.
What fuel does it use?

It uses standard wood logs; 12 kW accepts up to ~13" lengths.
Is safety clearance low?

Requires minimal 23 cm clearance to combustibles, simplifying placement.
Are sauna stones included?

No, stones are sold separately; 265 lb recommended for 12 kW
Does it come with a warranty?

Yes, includes a 2‑year manufacturer warranty covering defects.