UKO H-External
Classic, Versatile, Comfort-Enhancing
“We’re a UK-based garden and DIY shop, and UKO hot tub stoves have been a fantastic addition to our lineup. They’re a hit with our DIY customers building their own wood-fired hot tubs. Plus, their quick and helpful support on any issues makes them stand out. Truly a great choice for us and our clients.”
– Partner from the UK
Maximize Bathing Comfort with the External Wood-Fired Heater
Explore our classic external wood-fired stove, known for its reliability and versatility.
This heater accommodates all hot tub designs and insert types—fiberglass, acrylic, wood and shapes including round, square, and oval ofuro — ensuring a perfect fit for any size.
Positioned outside the tub, it frees up more space inside for a roomier soak without needing a larger tub.
This model features a smart double-pass heat exchanger, significantly boosting efficiency by enhancing heat transfer.
Perfect for those valuing both timeless design and functionality, this stove maximizes comfort within your hot tub.
Compatible with all hot tub types and sizes
Efficient, with a double-pass heat exchanger
High Quality AISI 304 or AISI 316 Stainless Steel
Maximized internal hot tub area
Specifications
Power Output
- 26 KW
- Heats 1000 Liters (264 Gallons) From 10 To 39 Degrees (50 -> 102 Degrees Fahrenheit) In 1hr 30mins
- Maximized Heat Transfer Via Double-Pass Heat Exchanger
Material
- AISI 304 Or AISI 316 Stainless Steel
- 1.5 Mm Thickness
- Corrosion And Heat Resistant
Dimensions
(H x W x L) mm / in
- Heater: 750x500x770mm (29.5×19.7×30.3 Inches)
- Combustion Chamber: 450x405x400mm (17.7×15.9×15.7 Inches)
- Firebox Opening: 215x365mm (8.5×14.4 Inches)
- Chimney Length With Cap: 2080mm (81.9 Inches)
- Overall Height With Chimney: 2745mm (108 Inches)
Features
- Door With Glass
- Controllable Air Vents
- Removable Ash Pan & Fire Grate
- Heat Shields On Lower Chimney Flues
Design
- Maximized Internal Hot Tub Area
- Versatile Compatibility For All Insert Types
Kit Includes
- AISI 304 Or AISI 316 Stainless Steel Heater With Door, Ash Pan And Fire Grates
- AISI 430 Stainless Steel Chimney Flues 2 Pcs
- AISI 430 Stainless Steel Chimney Heat Guard
- AISI 430 Stainless Steel Chimney Cap
- Heat Resistant Rubber Hose 2 Pcs
- Hose Clamps 4 Pcs
- AISI 304 Stainless Steel Bulkhead Connectors 2 Pcs
Manufacturer’s Warranty
- 2 years
Certification
- CE
Minimum Order Quantity
- 8 Kits – 1 Euro-Pallet
- Single Unit Sales Are Available, Albeit At A Higher Cost
Packaging
- Palletized Plastic Wrapped Packaging
Package Dimensions
(HxWxL) mm, in
- 1 Kit: 485x730x750 / 19.09×28.74×29.53
- 1 Euro-Pallet: 2090x800x1200 / 82.28×31.50×47.24
Quantity per Euro-pallet
- 8 Heater Kits
Weight, kg/lbs
- 1 Kit – 57 / 125.6
- 8 Kits On Euro-Pallet – 471 / 1038.3
recommended for following hot tub shapes
QUALITY MATERIALS
AISI 304 and AISI 316 stainless steel types withstand high temperatures and resist the effects of water treatment chemicals, promising durability and consistent performance.
FEATURE FOCUS
A DOUBLE-PASS HEAT EXCHANGER
This heater model features a double-pass heat exchanger which boosts efficiency by
Enhanced heat transfer
The design extends the hot air’s path, allowing more heat to warm the water.
Doubling the surface area
As the hot air to circulates twice through the system, the interface between the hot air and the water is significantly increased.
Lower Emissions
Decreasing wood use and emissions, thanks to better combustion, making the process eco-friendlier and more cost-effective.
WHY UKO HEATERS?
Safe
Quick Heating
CE Certified
Easy Maintenance
Grow Your Business with UKO and Offer Year-Round Warmth to Your Customers!
We’ll tailor a no obligation quote to meet your specific business needs. One business day response time.
UKO’s team is always accessible across various platforms, making coomunication a breeze. Their approach to communication is not only professional but also friendly, enhancing our business interactions and making every aspect of the transaction smooth and reliable.
