Manufacturer's Warranty

Lowest Price Guarantee

Lifetime Customer Service

Fast & Free Delivery

Description

Bring the ritual of a real wood-fired sauna to your space with the Cozy Heat COZY wood-burning sauna stove, offered in 12 kW and 18 kW options for sauna rooms sized 210–423 ft³ (12 kW) or 317–635 ft³ (18 kW). Built for traditional bathing, it’s designed for dry or humid heat—including the classic moment of ladling water over hot sauna stones to create steam (stones required, not included).

The COZY stove is a wood-burning design with steel construction and a combustion system engineered to burn efficiently by separating combustion air into multiple paths. That approach supports a steady burn and is paired with a practical, service-friendly layout that includes an upper cleaning hole and cleaning hatch for maintenance access. For everyday use, the stove includes a heater door with glass to monitor the fire, plus an ash box to support routine cleanup and airflow control.

Sizing is straightforward: choose the 12 kW model for hot-room volumes from 6–12 m³ (210–423 ft³), or step up to 18 kW for 9–18 m³ (317–635 ft³). The COZY is designed around real-world sauna operation details—such as specified wood log length limits, required flue draught, and safety clearances—so you can plan your layout and installation with confidence. Sauna stones are essential to operation and performance, and the stove is intended for use with appropriately sized sauna stones (stones not included).

What’s included focuses on the core stove assembly and key components referenced for the unit: outer frame of the heater, chimney pipe, heater body, cleaning hatch, heater door with glass, ash box, plus the installation and operation manual. The product carries a 24-month manufacturer warranty (with standard exclusions noted for effects on door glass and surface covering).

About the brand: Cozy Heat is an Estonia-based manufacturer (Cozy Heat Ltd) producing the COZY line of wood-burning sauna stoves with an emphasis on traditional wood-fired sauna heating, documented operating guidance, and defined safety and performance parameters for residential sauna environments. If you want the feel of a classic sauna fire paired with measured specifications for room sizing and clearances, the COZY line is built for that use case.

NOTE: This heater requires sauna stones - sold separately. To make your selection click the 'Bundle & Upgrade' button

12kW - 6 boxes
18kW - 8 boxes

Key Features

  • Wood-burning sauna stove
  • Intended to provide dry or humid heat in a sauna
  • Designed for ladling water over hot stones to create steam (stones required)
  • Steel construction
  • Floor-mount installation
  • Available kilowatt ratings: 12 kW and 18 kW
  • Hot room size (12 kW): 6–12 m³ (210–423 ft³)
  • Hot room size (18 kW): 9–18 m³ (317–635 ft³)
  • Fuel type: natural wood logs
  • Fuel (12 kW): wood logs with length up to 33 cm / 13 in
  • Fuel (18 kW): wood logs with length up to 40 cm / 15.7 in
  • Fuel quantities to be added (12 kW): 3.6 kg / 7.96 lb in three parts
  • Fuel quantities to be added (18 kW): 5.1 kg / 11.27 lb in three parts
  • Necessary flue draught (12 kW): 12 Pa
  • Necessary flue draught (18 kW): 12 Pa
  • Special furnace construction separates combustion air into three parts
  • Chimney pipe included (diameter D114 mm / 4.48 in)
  • Flue connection location: top
  • Upper cleaning hole
  • Cleaning hatch
  • Heater door with glass
  • Ash box
  • Stove stones are not included
  • Stone size (12 kW): 7.5–10 cm / 2.95–5.9 in
  • Stone size (18 kW): 7.5–15 cm / 2.95–5.9 in
  • Weight of sauna stove without stones (12 kW): 49–72 kg / 108–159 lb
  • Weight of sauna stove without stones (18 kW): 70–100 kg / 154–221 lb
  • Weight of sauna stove stones (12 kW): 100–120 kg / 154–265 lb
  • Weight of sauna stove stones (18 kW): 140–160 kg / 310–353 lb
  • CO emission at 13% O₂ (12 kW): 0.074% / 918 mg/m³
  • CO emission at 13% O₂ (18 kW): 0.093% / 1164 mg/m³
  • Dust emission (12 kW): 22 mg/m³
  • Dust emission (18 kW): 35 mg/m³
  • Overall efficiency (12 kW): 73.9%
  • Overall efficiency (18 kW): 81.3%
  • Flue gas average temperature (12 kW): 292°C / 557°F
  • Flue gas average temperature (18 kW): 234°C / 453°F
  • Minimum cross-section of ventilation openings: 10,200 mm² / 16.5 in²
  • Minimum cross-section of smoke flue: 7,850 mm² / 12.7 in²
  • Not suitable for installation in a shared flue system
  • Minimum safety distance to combustible materials (12 kW): sides 170 mm / 6.69 in
  • Minimum safety distance to combustible materials (18 kW): sides 230 mm / 9.05 in
  • Minimum safety distance to combustible materials (12 kW): back 230 mm / 9.05 in
  • Minimum safety distance to combustible materials (18 kW): back 230 mm / 9.05 in
  • Minimum safety distance to combustible materials (12 kW): front 500 mm / 19.68 in
  • Minimum safety distance to combustible materials (18 kW): front 500 mm / 19.68 in
  • Minimum safety distance to combustible materials (12 kW): ceiling 1130 mm / 44.48 in
  • Minimum safety distance to combustible materials (18 kW): ceiling 1340 mm / 52.75 in
  • Stove dimensions (12 kW): width 16.92 in (430 mm)
  • Stove dimensions (18 kW): width 19.68 in (500 mm)
  • Stove dimensions (12 kW): depth 20.06 in (510 mm)
  • Stove dimensions (18 kW): depth 24.58 in (625 mm)
  • Stove dimensions (12 kW): height 27.55 in (700 mm)
  • Stove dimensions (18 kW): height 29.76 in (756 mm)
  • Manufacturer warranty: 24 months after date of purchase
  • Tested/standard references noted: EN 15821:2010; BImSchV DIN EN 13240, level 2

Dimensions & Specifications

  • Model: COZY
  • Fuel: Wood logs
  • Nominal heat capacity: 12 kW (HEAT12), 18 kW (HEAT18)
  • Sauna room volume: 6–12 m³ / 210–423 ft³ (12 kW)
  • Sauna room volume: 9–18 m³ / 317–635 ft³ (18 kW)
  • Dimensions (WxDxH): 16.92 x 20.06 x 27.55 in (12 kW)
  • Dimensions (WxDxH): 19.68 x 24.58 x 29.76 in (18 kW)
  • Flue connection location: Top
  • Chimney pipe diameter: D114 mm / 4.48 in
  • Necessary flue draught: 12 Pa
  • CO emission (13% O₂): 918 mg/m³ (12 kW); 1164 mg/m³ (18 kW)
  • Dust emission: 22 mg/m³ (12 kW); 35 mg/m³ (18 kW)
  • Overall efficiency: 73.9% (12 kW); 81.3% (18 kW)
  • Flue gas average temperature: 292°C / 557°F (12 kW); 234°C / 453°F (18 kW)
  • Weight (without stones): 108–159 lb (12 kW); 154–221 lb (18 kW)
  • Stone load weight range: 154–265 lb (12 kW); 310–353 lb (18 kW)
  • Warranty: 24 months

Why Choose Cozy Heat?

If you want a wood-fired sauna experience with clearly defined sizing and safety parameters, the COZY line is built around that traditional workflow: heat with wood logs, load the basket with sauna stones (required), and tune your session for dry or humid heat. Two power options—12 kW and 18 kW—make it easier to match stove output to your sauna room volume without forcing a one-size approach.
Cozy Heat’s COZY stoves are documented with installation guidance, specified clearances to combustible materials, and stated operating parameters such as required flue draught and maximum fuel dimensions. That clarity helps when planning a sauna build or upgrading an existing hot room where layout, ventilation, and chimney routing matter.
For long-term ownership, the stove includes practical service elements like a cleaning hatch and an upper cleaning hole, plus a 24-month manufacturer warranty to support normal residential sauna use when installed and operated per the included instructions.

Fast & Free Shipping

Most Cozy Heat orders arrive within up to 21 days. Timing can vary by destination, carrier scheduling, and product availability. Orders paid through Affirm can add 5 to 7 days.

Order Processing

  • Order Verification: After you place an order, we confirm availability with Cozy Heat or an authorized distribution partner in our network.
  • Payment Authorization: Once availability is confirmed, your payment method is charged.
  • Order Placement: We then place the order with the supplier for fulfillment.
  • Order Cutoff Time: Orders placed after 2:00 PM CST may begin processing the next business day.

Shipping Rates and Delivery Timeline

  • Free Shipping: Shipping is FREE to the continental U.S. (lower 48 states).
  • Handling Time: 1 to 10 business days
  • Transit Time: 1 to 14 business days
  • Brand Timing Note: Cozy Heat products typically deliver within up to 21 days.
  • Affirm Note: Orders paid through Affirm can delay shipping timelines by 5 to 7 days.

Shipment Confirmation and Tracking

  • Tracking Email: You will receive a shipment confirmation email once your order ships with tracking details.
  • Tracking Activation: Tracking may take up to 24 hours to populate after the label is created.
  • Carrier Selection: The carrier may vary based on cost and service quality.
  • Delivery Scheduling: Most freight carriers attempt to contact you 1 to 2 days before delivery to schedule a drop-off time, but this is not guaranteed.

Delivery Options

  • Standard Delivery: Curbside delivery only. You are responsible for bringing the shipment inside.
  • Optional Upgrades: White Glove Service (inside placement) and Premium Installation Service (inside placement plus assembly and installation) may be available for an additional fee at checkout, subject to availability in your area. These services can add 2 to 5 business days for scheduling and coordination.

Pre Order and Special Order Items

  • If an item is pre order or out of stock, we will email or call to confirm you are comfortable with extended shipping times before your payment is processed.
  • Delivery timelines are estimates and may change due to production, freight, or carrier factors.
  • Outside the lower 48 states: We can often arrange shipping, but it is not part of our standard offering. Contact us for a custom quote.

Damages

InHouseWellness.com is not liable for products damaged or lost during shipping. If your order arrives damaged, contact the carrier immediately to file a claim, save all packaging and damaged goods, and we will assist with coordination and documentation as needed.

Warranty Included

InHouse Wellness extends the Cozy Heat manufacturer warranty to the original purchaser. Warranty coverage, terms, and remedies are set by Cozy Heat. Any warranty claims should be communicated directly to Cozy Heat.

Warranty Period

  • Cozy Heat sauna stoves: 24 months from the date of purchase (proof required via purchase receipt/invoice).

What Cozy Heat Covers

Cozy Heat’s warranty covers defects caused by manufacturing errors during the warranty period.

What’s Not Covered (Manufacturer-Stated Exclusions)

The warranty does not cover the following effects caused by the combined impact of temperature and steaming water:

  • Metal deformations
  • Effects on surface covering/finish
  • Effects on door glass

How to Start a Warranty Claim (Contact Cozy Heat)

Warranty claims should be submitted to Cozy Heat and should include:

  • Photos showing the defect
  • Copies of purchase documents (receipt/invoice)

The InHouse Wellness Difference

When you’re investing in premium wellness equipment, you want more than just a good deal—you want the right partner. Here’s why our customers trust us over anyone else:

  • Guaranteed Best Pricing – We work directly with manufacturers, so you never overpay. If you find a lower price, we don’t just match it—we beat it.
  • Unbeatable Shipping Times – Even if others claim faster delivery, we win. Your order ships either from our Austin, TX warehouse or straight from the manufacturer—fast, reliable, and trackable.
  • White Glove Delivery & Installation – We offer professional delivery, assembly, and installation so your new equipment is set up perfectly from day one.
  • U.S.-Based, Real Support – Our team is right here in the USA, ready to help by phone, text, or email—before, during, and long after your purchase.
  • Since 2011 – Over a decade of helping health and wellness consumers connect with top brands and the perfect products for their needs.
  • Factory Warranties Included – Full manufacturer coverage on every product, plus our help if you ever need to file a claim.
  • Exclusive Video & eBook Guides – From maintenance tips to usage tutorials, we give you the knowledge to get the most from your investment.

Bottom line: We don’t just sell equipment—we deliver the fastest shipping, the most reliable support, and the kind of buying experience you’ll tell your friends about.

THEM
Real Human Support
Friendly experts here for you via phone, chat, text & email
Offshore, slow or no support
Transparent Pricing
No hidden fees - always best price guaranteed
Surprise markups & fake discounts
Priority Shipping Access
Faster fulfillment from top-tier inventory partners
Standard processing delays
Trusted by Industry Pros
Our customers include athletes, therapists & designers
No notable endorsements
Recognized industry member
Proud member of leading wellness trade groups
No verified affiliations

Bring Authentic Heat to Your Sauna with Our Wood Burning Heaters

Experience the timeless charm and natural warmth of our Wood Burning Sauna Heaters. Perfect for those who crave an authentic, rustic sauna experience, these heaters provide a deep, soothing heat that enhances relaxation. Powered by wood, they offer a sustainable and eco-friendly way to enjoy your sauna, creating a cozy, traditional atmosphere that electric or gas heaters can’t replicate.

Ready to immerse yourself in the natural warmth of a wood-burning sauna?

Click below to explore our collection of Wood Burning Sauna Heaters and find the perfect one to enhance your sauna retreat.

Shop Wood Burning Sauna Heaters Now

Achieve Perfect Heat with Our Electric Sauna Heaters

Elevate your sauna experience with our Electric Sauna Heaters, designed to provide precise and consistent heat for the ultimate relaxation. Easy to install and operate, these heaters deliver even, controlled warmth, creating the perfect sauna environment every time. Whether you're looking to heat a small personal sauna or a larger space, our electric heaters offer efficiency, reliability, and the comfort you deserve.

Ready to heat your sauna effortlessly?

Click below to browse our selection of Electric Sauna Heaters and find the perfect match for your sauna needs.

Shop Electric Sauna Heaters Now

Heat Your Sauna with Efficiency and Power Using Gas & Propane Heaters

Experience the ultimate in heating efficiency with our Gas and Propane Sauna Heaters, designed to provide consistent, high-quality heat for a superior sauna experience. Ideal for larger saunas or those looking for fast, reliable heat, these heaters offer powerful performance with easy installation. Whether you're after the traditional sauna warmth or need a robust heating solution, our gas and propane options deliver quick, even heat, so you can enjoy a perfect sauna session every time.

Ready to take your sauna to the next level?

Click below to explore our selection of Gas and Propane Sauna Heaters and find the ideal solution for your

Shop Gas & Propane Sauna Heaters Now