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Cozy Heat Quattro Series Thru-Wall Sauna Heaters

Original price $1,985.00 - Original price $2,835.00
Original price
$1,985.00
$1,985.00 - $2,835.00
Current Price $1,985.00
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Cozy Heat Quattro Thru-Wall Sauna Stove - Wood-Burning Sauna Heater

A Stylish, Efficient Wood-Fired Sauna Stove with Convenient Thru-Wall Loading

Cozy Heat Quattro Series Thru-Wall Sauna Heaters

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 Heat Quattro Series Thru-Wall Sauna Stove Features

  • Thru-Wall Firebox for a Clean Sauna Space: Load firewood from outside your sauna, keeping ash and debris out of your relaxation area.
  • Elegant Square Design with Viewing Window: A modern, clean-lined aesthetic enhances your sauna, while the large glass door lets you enjoy the warm glow of the fire.
  • Efficient Wood-Burning Heat: Delivers deep, radiant warmth, perfect for traditional steam sauna sessions.
  • Heavy-Duty Steel Construction: Built with 5mm-thick stainless steel, including a reinforced flame cutter for long-lasting durability.
  • Fuel-Saving Performance: Burns 25-40% less firewood than comparable sauna stoves, reducing fuel costs and wood consumption.
  • Eco-Friendly Emissions: Meets strict German BIMSCH certification, producing 6x cleaner smoke gases for a healthier sauna experience.
  • Minimal Safety Clearance Requirements: Designed for compact sauna spaces, requiring minimal safety distances.
  • Two Power Options for Different Sauna Sizes
    • 12kW Model: Heats saunas from 210 to 423 cu. ft.
    • 18kW Model: Heats saunas from 317 to 635 cu. ft.
  • Premium Sauna Stone Capacity (Sold separately)
    • 12kW Model: Requires at least 265 lbs of stones.
    • 18kW Model: Requires at least 353 lbs of stones.
    • Additional stones are recommended for optimal heat retention and steam production.
  • Included: Comes with a chimney pipe, heater body, cleaning hatch, glass door, ash box, and a detailed operation manual for easy setup.

Cozy Heat Quattro Thru-Wall Stove Specifications

Cozy Quattro Thru-Wall 12 Model:

  • Power Output: 12kW
  • Sauna Room Size: 210 - 423 cu. ft.
  • Firewood Length: Up to 12.99" (329mm)
  • Firewood Diameter: 3.14" - 4.72" (80-120mm)
  • Weight: 159 lbs (Shipping Weight with Stones: 424 lbs)
  • Dimensions: 26.18" D x 17.32" W x 27.55" H
  • Safety Distances: 54.91" front-to-back, 32.87" left-to-right
  • Flue Connection: Top

Cozy Quattro Thru-Wall 18 Model:

  • Power Output: 18kW
  • Sauna Room Size: 317 - 635 cu. ft.
  • Firewood Length: Up to 15.74" (400mm)
  • Firewood Diameter: 3.14" - 4.72" (80-120mm)
  • Weight: 220 lbs (Shipping Weight with Stones: 572 lbs)
  • Dimensions: 30.70" D x 20.27" W x 28.74" H
  • Safety Distances: 59.43" front-to-back, 39.75" left-to-right
  • Flue Connection: Top

Warranty: 2 years

Download the Installation and Operation Manual

Need Some Help?

When You Work With Our Sauna Specialist, You Get:

  • Expert Guidance on Choosing the Right Sauna
  • Sauna Selection & Sizing Assistance
  • Private Access To The Best Deals & Promotions
  • Professional Installation & Electrical Setup Support
  • Dedicated Account Representative for Support

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.”

- Jordan W., 02/25
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