Cozy Heat Thru-Wall 12kW Sauna Heater - Wood-Burning Sauna Stove

Cozy Heat SKU: 4745010348020

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Regular price $1,790.00
Sale price $1,790.00 Regular price
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Kilowatt: 12kW
Regular price $1,790.00
Sale price $1,790.00 Regular price

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Product Information

The Cozy Heat TW is a handcrafted Estonian wood-burning sauna stove. Designed for thru‑wall installation and floor mounting, it heats small to medium saunas 210–423 cu ft

With clean, low-smoke combustion and durable construction, it delivers traditional, long-lasting heat ideal for steam bathing.

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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.

Rubber Dumbbell
Thru‑wall loading
Rubber Dumbbell
Steel construction
Rubber Dumbbell
Low-smoke emission
Multiple Weights
Heavy stone ready
Metal Handles
Durable flame cutter
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Cozy Heat Thru-Wall 12 kW Sauna Heater

Room Size:
12 kW model fits 210–423 cu ft saunas

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 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.

Iron Construction

Thru‑Wall Loading

Add wood from outside without entering the sauna.

Compact Design

Stone-Rich Steam

Supports ≥ 265 lb

Hex Shape Design

Low-Smoke Burn

Up to six times cleaner combustion.

Secure System

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.

CozyHeat

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Specifications

Brand Cozy Heat
Models TW 12 kW
Room Size 210–423 cu ft
Weight 126 lb
Firewood Size ≤329 mm
Stone Requirement 265 lb
Safety Clearance ~55″ F–B / ~33″ S–S
Fuel Wood logs
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 , or phone - . 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. 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. to view our complete Shipping policy for more details.

Frequently Asked Questions

Can I load wood without entering the sauna?
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Yes – the thru‑wall design lets you add wood from outside effortlessly.


Which size matches my sauna?
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Choose 12 kW for 210–423 cu ft saunas.


How much stone is needed?
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Minimum 265 lb for the 12 kW model.


What are the safety clearances?
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~55″ F–B, ~33″ side.


Does it burn clean?
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Yes – certified for low-smoke; burns 25–40% less wood.


Is it easy to install?
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Yes – floor-mount thru-wall design with top flue and compact space needs.

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