Cozy Heat COZY 12 OG-TW Thru-Wall Wood Sauna Stove 11.5 kW

• Wood-burning sauna stove
• Thru-wall (TW) combustion chamber extension
• Intended for dry or humid sauna heat
• Designed for water-on-stones sauna steam use
• Power: 11.5 kW
• Suitable sauna room size: 6–13 m³
• Max fuel load: 8 kg
• Fuel: wood logs up to 30 cm
• Glass heater door
• Chimney pipe D114
• Flue gas outlet opening on top of the stove
• Upper cleaning hole
• Cleaning hatch
• Ash box
• Stove stones not included
• Minimum safety distance to ceiling: 1130 mm
• Minimum safety distance to sides (inflammable materials): 170 mm
• Minimum safety distance to back (inflammable materials): 230 mm
• Minimum safety distance to front (inflammable materials): 500 mm
• TW wall opening minimum width: 255 mm
• TW minimum height from floor (opening): 440 mm
• TW maximum wall thickness: 150 mm
• Minimum safety distance from wall opening to inflammable materials (sides of opening): 600 mm
• Minimum safety distance from wall opening to inflammable materials (upward from opening): 960 mm
• Stone size guidance: 7.5–15 cm
• Documented standards/test references: EN 15821:2010
• Documented standards/test references: BImSchV
• Documented standards/test references: DIN EN 13240 level 2

• Dimensions (WxDxH): 498 x 696 x 709 mm
• Weight: 63 kg
• Stones weight: 100 kg
• Power: 11.5 kW
• Sauna room size: 6–13 m³
• Fuel: wood logs up to 30 cm
• Max fuel load: 8 kg
• Chimney pipe: D114
• Model: COZY 12 OG-TW

If you want the feel of a traditional wood-fired sauna without bringing firewood handling into the hot room, the COZY 12 OG-TW is purpose-built for that workflow. The thru-wall firebox extension shifts loading and tending outside the sauna while the OG stone cage inside supports classic water-on-stones bathing and steady radiant comfort.
Cozy Heat’s approach focuses on wood-burning sauna stoves designed for repeated sauna cycles, with documented installation guidance and safety-distance requirements to support proper planning. The COZY 12 OG-TW pairs that practical foundation with user-facing touches like a glass fire door for quick checks during heating.
For owners building or upgrading a wood-fired sauna, this model fits a routine where you heat from an adjacent space, keep the sauna interior calmer and cleaner, and still get the steam and stone heat that define a traditional session.

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.

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)

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.