Quattro Thru Wall Sauna Stove Of Cozy Heat

COZYQUATTROTW12 Quattro Thru Wall Sauna Stove

COZYQUATTROTW18 Quattro Thru Wall Sauna Stove

Cozy Heat Quattro Thru Wall Model Sauna Stove.

Cozy Heat Quattro Series Thru-Wall Sauna Heaters

$1,985.00

FAST & FREE Shipping
Order Today > Ships in ~ 4-6 Business Days.

Best Price Guarantee
We know what you want. We won't be beat.

Buy Now Pay Later Options
ShopPay, PayPal, Credit Card, HSA/FSA (TruMed) & more.

Ask A Sauna Expert

Buy with confidence. Contact a Wellness Junction specialist.

📞 877-791-8083 💬 Message Us

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

Order Processing: Once your order is placed, you’ll receive a confirmation email. Please allow 1–3 business days for order review and processing. If we need to confirm delivery details or there are any delays, we’ll reach out right away.

How Saunas Ship:

Freight Delivery (Most Saunas): Sauna kits and larger models ship on a pallet via freight carrier and are delivered curbside.
Parcel Shipping (Smaller Items): Accessories or small components may ship via UPS, FedEx, or USPS.

Estimated Delivery Timeline:

Processing: 1–3 business days.
Estimated Ship-Out: Typically ships in 1–2 weeks.
Transit Time: Freight shipments typically take 3–10 business days once shipped.
Delivery Appointment: The carrier will usually contact you to schedule delivery. An adult must be present to receive and inspect the shipment.

Important Delivery Notes:

Curbside Delivery: Freight is delivered to the end of your driveway or loading area. Inside delivery or white-glove service is not included unless arranged in advance.
Measure First: Confirm doorway widths, staircases, and access paths. Sauna kits ship in multiple boxes and/or pallets.
Inspect on Arrival: Before signing, check for visible damage to packaging or pallet.

If There’s Damage: Note it on the delivery receipt (ex: “Damaged – subject to inspection”), take photos, and contact us within 48 hours so we can assist with next steps.

Warranty Coverage:

We are an authorized dealer, and all saunas include the full manufacturer’s warranty. Coverage terms vary by brand and model and are listed on the product page.

What’s Typically Covered:

Manufacturer defects in sauna materials and components
Heaters, controls, and electrical components per manufacturer policy
Replacement parts shipped to you (labor not typically included)

What’s Typically Not Covered:

Shipping damage not noted at delivery
Natural wood variation, knots, or movement over time
Improper installation, misuse, or operation outside manufacturer guidelines
Electrical issues due to incorrect wiring or inadequate power supply

Need Help? If you have questions or need to start a warranty claim, contact us and we’ll help coordinate with the manufacturer to get things resolved as quickly as possible.

Sauna FAQs

Benefits of Sauna

What are the main benefits of using a sauna? +

People use saunas to support relaxation, stress relief, muscle recovery, improved circulation, better sleep, detoxing the body, increasing longevity and many more. Sauna has been studied and proven to be among the most efficacious practices known to man.

Is there a difference in benefits between infrared and traditional saunas? +

Infrared saunas provide radiant heat at lower temperatures, which many users find more comfortable for longer sessions. Traditional saunas heat the air to higher temperatures for a classic, intense sauna experience. Both are popular for wellness use—the best choice depends on personal preference.

How often should I use a sauna, and how long should sessions be? +

Most people use a sauna 3–5 times per week for 15–45 minutes per session. Start shorter and increase gradually, stay hydrated, and listen to your body.

Choosing the Right Sauna

Which sauna type should I choose: infrared, traditional, or hybrid? +

Infrared saunas are known for lower-temperature comfort and convenience. Traditional saunas offer higher heat and a more intense, classic feel. Hybrid saunas combine both options, allowing flexibility based on how you want to use your sauna.

What size sauna do I need? +

One- and two-person saunas are ideal for personal daily use. Larger models offer more room to stretch or share with others. If space allows, many buyers prefer to size up for added comfort.

What’s the difference between full spectrum and far infrared? +

Far infrared focuses on steady, comfortable radiant heat. Full spectrum typically includes near, mid, and far infrared wavelengths for those who want the broadest range of infrared output. Both are effective for general wellness use.

What to Know Before You Order

Will this sauna work in my home or space? +

Most saunas work well in residential spaces as long as you have adequate room, ventilation, and the proper electrical connection. Always review product dimensions and requirements before ordering.

What are the electrical requirements? +

Many smaller infrared saunas use a standard 120V outlet. Larger infrared and traditional models often require a dedicated 240V circuit. Electrical requirements are listed on each product page.

How difficult is assembly and setup? +

Most saunas are designed for straightforward assembly and can be set up in 1–3 hours with two people. Some traditional models may require an electrician if hardwiring is needed.

How much does it cost to run a sauna? +

Operating cost depends on sauna size, heater wattage, usage frequency, and local electricity rates. Most owners find sauna use comparable to running other common household appliances.

Shipping & Warranty

How is a sauna shipped and delivered? +

Saunas typically ship via freight in boxed or crated shipments. The carrier will contact you to schedule a delivery appointment once the shipment reaches your area.

Is shipping included in the price? +

Yes. All saunas include free shipping. The price shown on the product page is the final delivered price.

What warranty comes with my sauna? +

All saunas include the manufacturer’s warranty. Coverage details vary by brand and model and are listed on each product page.

What if my sauna arrives damaged or I need help? +

Inspect your delivery upon arrival and note any visible damage before signing. If you need assistance at any point, contact support@wellnessjunction.com or call 877-791-8083.