Cozy Heat Quattro Series Thru-Wall Sauna Heaters

Cozy Heat Quattro Thru-Wall Sauna Stove – Wood-Burning Sauna Heater

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

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 itssleek 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