Share
Cozy Heat
Cozy Heat OG Thru-Wall Sauna Stove With Sauna Stones [COZY OG-TW]
Cozy Heat OG Thru-Wall Sauna Stove With Sauna Stones [COZY OG-TW]
SKU:4745010348082
✅ #1 Authorized Online Dealer
🚚 Free Shipping (Over $200) & No Sales Tax (Excl. FL)
💰 We Beat Any Verified Price
⚡ Fast Delivery
🛡️ Manufacturer’s Warranty Included
📞 Questions? Call Our Experts at +1 (877) 477-2853
Couldn't load pickup availability
![Cozy Heat OG Thru-Wall Sauna Stove With Sauna Stones [COZY OG-TW]](http://theprimepinnacle.com/cdn/shop/files/cozy-heat-og-thru-wall-sauna-stove-right-side-view-sak75861.jpg?v=1744816224&width=1445)
Step into the timeless tradition of sauna bathing with the Cozy Heat OG Thru-Wall Sauna Stove—a handcrafted wood-burning heater designed in Estonia, the birthplace of sauna culture. With its innovative thru-wall loading system, you can fuel your sauna from outside the room, keeping the interior clean and uninterrupted while you relax.
Engineered for long-lasting durability and efficiency, the OG-TW features a 5mm-thick stainless steel flame cutter, ensuring years of reliable performance. Its elegant trilateral design not only enhances heat distribution but also adds a touch of sophistication to any sauna space.
Consuming 25–40% less fuel than traditional stoves and producing 6x cleaner smoke gases, this sauna heater is an eco-conscious choice for authentic sauna enthusiasts. Whether for personal wellness or shared experiences with family and friends, the Cozy Heat OG-TW transforms your sauna into a sanctuary of warmth, relaxation, and rejuvenation.
Key Features
Thru-Wall Design – Load firewood from outside the sauna for convenience, cleanliness, and uninterrupted relaxation.
Efficient Heating – Delivers powerful heat output between 12–18 kW, suitable for sauna rooms from 210 to 636 cu. ft.
Durable Construction – Built with 5mm stainless steel flame cutter for exceptional longevity.
Eco-Friendly Performance – Uses up to 40% less wood and produces significantly cleaner smoke gases compared to traditional stoves.
Elegant Design – Sleek, trilateral body with glass door complements modern sauna aesthetics.
Authentic Sauna Experience – Provides natural wood-fired heat and ambiance, replicating the traditional Estonian sauna.
Models Available: OG-TW 12 / OG-TW 18
Dimensions (D x W x H):
OG-TW 12: 27.36" x 17.32" x 27.91"
OG-TW 18: 21.69" x 22.04" x 29.72"
Primary Fuel: Wood
Power Output: 12–18 kW
Heating Capacity: 210–636 cu. ft.
Material: Stainless Steel
Heater Weight: 139–199 lbs
Flue Connection: Top
Firewood Diameter: 3.15"–4.72"
Stones Included: No
(1) Outer Frame of Heater
(1) Chimney Pipe
(1) Heater Body
(1) Cleaning Hatch
(1) Heater Door with Glass
(1) Ash Box
(1) Installation & Operation Manual
(1) 2-Year Manufacturer’s Warranty
Warranty Information
The Cozy Heat OG-TW Sauna Stove is backed by a 2-year manufacturer’s warranty, covering material and workmanship defects. Warranty ensures long-term peace of mind, reinforcing the durability and reliability of this premium sauna stove.
Let customers speak for us
from 978 reviewsIf you're looking for a Ebike that catches eyes and saves you time then this is it
We installed the 65" Silver Series in our outdoor kitchen area under a covered pavilion and couldn't be more pleased. The 4K picture looks great and the colors are vibrant. Streaming works flawlessly and we've had zero connectivity issues. It's survived rain, high humidity, and both hot and cold temperatures over the past five months. The weatherproofing gives us complete confidence leaving it outside year-round. For anyone looking for an affordable but quality outdoor TV for a shaded space, this is definitely the way to go. Thanks to The Prime Pinnacle for excellent service.
I was skeptical that any TV could handle our poolside wall that gets blasted with afternoon sun, but this 65" Platinum proved me wrong. The picture stays crystal clear even at 2pm when the sun is directly on it. We've been using it for about five months now and it's been through rain, intense heat, and everything in between without missing a beat. The built-in sound is surprisingly good too - we haven't needed to add a soundbar yet. The Prime Pinnacle's team was helpful throughout the process. This is the real deal for full sun installations.
We installed the 65" Gold Series on our covered patio that gets partial sun during the day, and the performance has been outstanding. The brightness is incredible - even when sunlight is hitting part of the screen, everything stays visible and clear. The Mini-LED backlighting provides excellent contrast and the colors are vivid. We've had it outside for five months through rain, heat, and humidity without a single issue. The Google TV interface is smooth and has all the streaming apps we need. The Prime Pinnacle's customer service was top-notch. This TV delivers exactly what it promises for partial sun environments.
We installed the 65" Diamond Series on our pool deck that gets full afternoon sun and it's been absolutely phenomenal. The picture stays bright and clear even when the sun is directly hitting the screen - something our previous outdoor TV could never do. The Neo QLED technology really makes a difference with the color vibrancy and contrast. It's been outside for about six months through intense heat, rain, and everything in between without any issues. The Samsung interface is familiar and works flawlessly. The Prime Pinnacle delivered exactly what they promised. If you need a TV for full sun exposure, this is worth every dollar.
We purchased the 55" Silver Series for our covered deck and it's been perfect for our needs. The picture quality is clear and bright enough for our shaded area, and the smart features work smoothly. It's been outside for about seven months through rain, humidity, and temperature swings without a single issue. The weatherproofing is clearly well done. For the price point, this is an excellent outdoor TV option. The Prime Pinnacle had great communication throughout the process and delivery was on schedule. Very happy with this purchase.
We installed the 55" model on our covered back deck and it's been excellent. The picture is clear and vibrant, even on overcast days. It took about 5 weeks to arrive, but The Prime Pinnacle kept us updated throughout and explained it was due to the outdoor calibration process - totally worth the wait. We've had it through some humid summer months and a few storms, and it's held up perfectly. The smart features work seamlessly and streaming is smooth. Really happy we went with this over a regular indoor TV.
We installed the 65" 8K model under our pergola and the picture quality is absolutely incredible. The detail and clarity are noticeably sharper than our previous 4K outdoor TV. The AI upscaling makes even regular HD content look amazing. It's been outside for about three months handling various weather conditions without any issues. The WebOS interface is fast and intuitive, and connecting to WiFi was seamless. Yes, it's a significant investment, but if you're looking for the absolute best picture quality for a covered outdoor space, this is it. The Prime Pinnacle's service was excellent throughout the purchase process.
I've been through two other outdoor TVs before finding this one on The Prime Pinnacle, and this is the first that doesn't wash out completely during the day. We have it on our west-facing patio and even at 3pm when the sun is hitting it, you can still see the picture clearly. Setup was straightforward, and the smart features work just like our indoor Samsung. It's been outside through some pretty heavy rain and a couple cold snaps with zero issues. Worth every penny for anyone serious about outdoor entertainment.
This set turns heads on the course—the gold and platinum elevate your presence, while the shafts provide silky smooth release. Irons feel forged for my swing; the Prime Pinnacle kept me updated with tracking—arrived pristine!
After doing tons of research, I went with the 65" Emerald for our outdoor kitchen area. The wait time was about 6 weeks but The Prime Pinnacle explained that's standard for the weatherproofing and testing they do - makes sense for an outdoor product. Picture quality is fantastic, especially considering it's designed to live outside permanently. We've used it almost daily for three months now through various weather and haven't had a single problem. The apps work flawlessly and sound quality is decent even without a soundbar. Highly recommend.
We debated whether 8K was necessary for outdoor use, but after seeing this in action, we're glad we went for it. The level of detail is remarkable - you really can see the difference, especially with 4K content that gets upscaled. The TV handles our bright covered patio environment beautifully and the colors stay consistent from different viewing angles. It's been installed for four months through rain and heat with zero issues. The WebOS system is user-friendly and streaming quality is excellent. The Prime Pinnacle made the whole process straightforward. If you want the absolute best outdoor viewing experience and have a suitable covered space, this is the one to get.
Powered our whole site—lights, cooler, and projector—for 3 days straight. The 1300W solar input topped it off in 2 hours on sunny days, and the wireless charger is a lifesaver for devices. LiFePO4 feels indestructible!
No fumes, no engine noise, just steady power. The battery capacity is excellent and charging from multiple sources gives peace of mind during long outages.