Dometic TwinBoost Combi Boiler Heater image 1 Dometic TwinBoost Combi Boiler Heater image 2 Dometic TwinBoost Combi Boiler Heater image 3 Dometic TwinBoost Combi Boiler Heater image 4 Dometic TwinBoost Combi Boiler Heater image 5 Dometic TwinBoost Combi Boiler Heater image 6 Dometic TwinBoost Combi Boiler Heater image 7 Dometic TwinBoost Combi Boiler Heater image 8

Dometic TwinBoost Combi Boiler Heater

£1799.99 - £2649.99 (inc VAT)
BRAND : Dometic
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The Dometic TwinBoost Combi Boiler Heater range offers versatile and efficient heating solutions for motorhome and caravan owners, combining cabin air heating and water heating in a single unit. Designed for maximum performance, the TwinBoost series features independent heating chambers, allowing air and water to be heated directly and separately, saving energy by heating only what is required. Whether it’s the compact TwinBoost 4000 for quick and reliable warmth or the advanced TwinBoost 8000H with hybrid gas and electric operation, these heaters cater to travellers seeking comfort and convenience throughout the year.

Each model in the range offers unique benefits to meet varying user needs. The TwinBoost 4000 provides efficient cabin heating and quick water heat-up, making it ideal for smaller vehicles and short trips. The TwinBoost 6000 delivers enhanced performance with a 6000 W heating capacity, while the 6000H adds hybrid functionality, utilising both gas and electric power for increased energy efficiency. At the top of the range, the TwinBoost 8000H offers a powerful 7800 W capacity, providing superior heating performance for larger spaces and ensuring ultra-fast water heat-up even in colder conditions.

With features such as intuitive control panels, four warm air outlets for consistent heat distribution, and innovative safety systems, the Dometic TwinBoost Combi Boiler Heaters are designed for ease of use and reliability. The hybrid models, denoted by the “H,” offer added flexibility by enabling operation on gas, electric, or both, making them suitable for extended stays and varied climates. Whether for summer getaways or winter adventures, the TwinBoost range delivers dependable heating and hot water solutions for modern motorhome and caravan enthusiasts.



4 warm air outlets
4 warm air outlets
Uniform heat distribution throughout the cabin
Intuitive control panel
Intuitive control panel
Easy operation and convenient programming
Smart chimney cover design
Smart chimney cover design
Repels water away from the wall

3-in-1 safety system
3-in-1 safety system
Integrating a frost, drain and over-pressure valve
Easy-to-read display
Easy-to-read display
Well-structured design
4 options available
4 options available
Ranging from the 4000 to 8000H



Energy-saving heater
Energy-saving heater
Dometic TwinBoost combo heaters make very economic use of energy. Instead of keeping the heater on all day, simply set the time for how long you want your water to be warm. And there's no need to heat the cabin air to get warm water either. Save energy and money while enhancing the comfort of your motorhome!

Get the water hot more quickly
Get the water hot more quickly
Dometic TwinBoost combo heaters feature a unique dual-chamber design, with separate heat chambers for cabin air and hot water. A unique benefit of the technology is that the water tank is heated directly – and not indirectly via the air heating as with other combo heaters available in the market. This results in a super-fast water heat-up with minimal energy loss.




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If you’ve changed your mind about keeping your purchase, please return it in its original condition with proof of purchase and we’ll exchange or refund it. Unless faulty, this should be within 30 days of receiving your order. By original condition, we’d expect this to mean that you’ve kept packaging and labels, and that the item is undamaged and unused.

For further information of how to return your item, please visit the "Returning an Unwanted/Faulty/Damaged Item" section on our Help Page.

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