Wood-Fired
Heaters
For Hot-Tubs

Explore Heating Solutions for Diverse Hot Tub Styles and Types

We’ve been sourcing our hot tub heaters from UKO a few years before they launched their brand, and they’ve always been great. The quality and durability of these stoves have elevated our hot tubs to the next level. Now that they’re branded as UKO, there’s an added benefit. Their investment in marketing for end users enhances the overall value of our products.

– Partner from Lithuania

Boost Your Hot Tub Line with UKO’s Diverse Heating Solutions

Stand out in the market by upgrading your hot tub collection with UKO heaters. Designed to fit various styles and types, UKO heaters not only enhance your offerings but also ensure your products are the first choice for discerning customers seeking versatility and quality.

Uko Hot-Tub Heater Features

External and integral heater solutions

Ready-to-Install Heater Kits

2 year warranty

CE Certified

 PRODUCTS

With the increasing demand for wood-fired hot tubs, UKO presents a unique opportunity for manufacturers and wholesalers to enhance their product portfolio and grow sales.

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Modern Style Meets Top Performance

Crafted not only to look good but to deliver top-notch efficiency and functionality.

Versatility in Design and Power

Multiple choices to match a wide array of hot tub styles and sizes, with power outputs tailored for both small and large volumes of water.

Customizable Material Options

Choice of 304 or 316 stainless steel for tailored durability and resistance to meet diverse customer needs.

Complete Kit Convenience

Everything you need comes in one all-encompassing package, making assembly hassle-free.

Effortless Installation

Designed for straightforward installation, catering to both professional fitters and DIY enthusiasts.

Comprehensive Support

Professional guidance on use and maintenance for seamless setup and sustained performance.

UKO’s strategic location in Lithuania ensures fast and reliable worldwide logistics, guaranteeing swift delivery and supply chain stability for our partners.

Factory located in EU

2-3 week lead time

7 -14 business day delivery in EU and UK

1-2 month delivery to North America

UKO H-INTEGRAL

UKO H-EXTERNAL

UKO H-HORIZON

Power Output

30 kW

26 kW

25 kW

Heats 1000 liters (264 gallons) from 10 to 39 degrees (50 -> 102 degrees Fahrenheit)

1hr 10mins

1hr 30mins

1hr 40min

Maximized heat transfer via double-pass heat exchanger

Construction 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

465x645x760 / 18.3×25.4×29.9

750x500x770 / 29.5×19.7×30.3

410x640x835 / 16.1×25.2×32.9

Combustion Chamber

300x320x385 / 11.8×12.6×15.2

450x405x400 / 17.7×15.9×15.7

270x475x390 / 10.6×18.7×15.4

Firebox Opening

335×300 / 13.2×11.8

215×365 / 8.5×14.4

180×450 / 7.1×17.7

Chimney length with cap

2080 / 81.9

Overall height with chimney

2460 / 96.9

2745 / 108

2390 / 94.1

Features

Door with Glass

Door with Wide Horizontal Glass

Controllable Air Vents
Removable Ash Pan & Fire Grate
Heat Shields on Lower Chimney Flues

Design

Ground space-saving design


Compatibility with fibreglass and acrylic inserts

Maximized internal hot tub area


Versatile compatibility for all hot tub and insert types and sizes

Wide fire viewing window


Maximized internal hot tub area


Ground space-saving design

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

10 Kits – 1 Euro-pallet

8 Kits – 1 Euro-pallet

5 Kits – 1 Euro-pallet

Single unit sales are available, albeit at a higher cost

Packaging

Palletized plastic wrapped packaging

Quantity Per Euro-Pallet

10 heater kits

8 heater kits

5 heater kit

Weight, kg/lbs

1 Kit – 54 / 119
10 Kits on Euro-pallet – 555 /1223.5

1 Kit – 57 / 125.6
8 Kits on Euro-pallet – 471 / 1038.3

1 Kit – 50/110.2
 5 Kits on Euro-pallet – 265/ 584.2

Package Dimensions
(HxWxL) mm / in

1 kit

465x640x760 / 18.31×25.20×29.92

485x730x750 / 19.09×28.74×29.53

425x580x860 / 16.73×22.83×33.8

1 Euro-pallet

2030x930x1280 / 79.92×36.61×50.39

2090x800x1200 / 82.28×31.50×47.24

1450x865x1200 / 57.09×34.06×47.2

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Feature

UKO H-Integral

UKO H-Horizon

UKO H-External

Power Output

  • 30 KW
  • Heats 1000 liters (264 gallons) from 10 to 39 degrees (50 -> 102 degrees Fahrenheit) in 1hr 10mins
  • Maximized heat transfer via double-pass heat exchanger
  • 25 KW
  • Heats 1000 liters (264 gallons) from 10 to 39 degrees (50 -> 102 degrees Fahrenheit) in 1hr 40min
  • 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
  • AISI 304 or AISI 316 Stainless Steel
  • 1.5 mm Thickness
  • Corrosion and Heat Resistant
  • AISI 304 or AISI 316 Stainless Steel
  • 1.5 mm Thickness
  • Corrosion and Heat Resistant

Dimensions

(H x W x L) mm / in

  • Heater: 465x645x760 / 18.3×25.4×29.9 
  • Combustion Chamber: 300x320x385 / 11.8×12.6×15.2 
  • Firebox Opening: 335x300mm (13.2×11.8 inches)
  • Chimney length with cap: 2080mm (81.9 inches)
  • Overall height with chimney: 2460mm (96.9 inches)
  • Heater: 410x640x835mm (16.1×25.2×32.9 inches)
  • Combustion Chamber: 270x475x390mm (10.6×18.7×15.4 inches)
  • Firebox Opening: 180x450mm (7.1×17.7 inches)
  • Chimney length with cap: 2080mm (81.9 inches)
  • Overall height with chimney: 2390mm (94.1 inches)
  • 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
  • Door with Wide Horizontal Glass
  • Controllable Air Vents
  • Removable Ash Pan & Fire Grate
  • Heat Shields on Lower Chimney Flues
  • Door with Glass
  • Controllable Air Vents
  • Removable Ash Pan & Fire Grate
  • Heat Shields on Lower Chimney Flues

Design

  • Ground space-saving design
  • Compatibility with fibreglass and acrylic inserts
  • Wide fire viewing window
  • Maximized internal hot tub area
  • Ground space-saving design
  • Maximized internal hot tub area
  • Versatile compatibility for all hot tub and insert types and sizes

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
  • 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
  • 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
  • 2 Years
  • 2 Years

Certification

  • CE
  • CE
  • CE

Minimum Order Quantity

  • 10 Kits – 1 Euro-pallet
  • Single unit sales are available, albeit at a higher cost
  • 5 Kits – 1 Euro-pallet
  • Single unit sales are available, albeit at a higher cost
  • 8 Kits – 1 Euro-pallet
  • Single unit sales are available, albeit at a higher cost

Packaging

  • Palletized plastic wrapped packaging
  • Palletized plastic wrapped packaging
  • Palletized plastic wrapped packaging

Quantity per Euro – pallet

  • 10 heater kits
  • 5 heater kits
  • 8 heater kits

Weight, kg/lbs

  • 1 Kit – 54/ 119
  • 10 Kits on Euro-pallet – 555 /1223.5
  • 1 Kit – 50/110.2
  • 5 Kits on Euro-pallet – 265/ 584.2
  • 1 Kit – 57 / 125.6
  • 8 Kits on Euro-pallet – 471 / 1038.3

Package Dimensions (HxWxL) mm, in

  • 1 Kit: 465x640x760 / 18.31×25.20×29.92 
  • 1 Euro-pallet: 2030x930x1280 / 79.92×36.61×50.39
  • 1 Kit: 425x580x860/ 16.73×22.83×33.86
  • 1 Euro-pallet: 1450x865x1200 / 57.09×34.06×47.24
  • 1 Kit: 485x730x750 / 19.09×28.74×29.53
  • 1 Euro-pallet: 2090x800x1200 / 82.28×31.50×47.24

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.

Partner from the UK

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