Joule High Gain cylinders have fast become one of the UK's most reliable cylinder brands.
Quality and performance are truly at the forefront of their mission. With the introduction of the Energy Related Product Certificate Scheme under an EU directive, Joule is leading the way by offering a complete range of A, B, and C-rated cylinders.
Known for its attractive grey finish and the lack of cheap plastic used on the outer casing, it's clear that inside and out, only the best materials are utilised. From its duplex stainless steel body to 316L-grade stainless fittings and coils, the brand naturally sets itself apart from its competition.
Unlike most affordable brands on the market, the Cyclone High Gain range of cylinders uses high-recovery smooth tube coils for optimal performance.
No other coil type on the market today offers the same transfer rate.
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Your delivery option for this product is 5-10 working days.
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30 days returns policy
At The Underfloor Heating Store, our customers have 30 days to upgrade, replace or refund their orders.
At The Underfloor Heating Store, we want to ensure you are happy with every purchase you make. If you have any issues with your chosen product, whether damaged, faulty or simply an unwanted item, you can simply return what you bought for a refund. Learn more.
We take great care in the delivery of all of our products, however, in the event of your delivery arriving damaged or if you notice a manufacturing fault of any kind within 48 hours of delivery, you're within your rights to a replacement. Learn more.
Within 14 days of purchasing from us, you are eligible to upgrade if you deem you want something a little better. Simply send it back to us brand new and we'll happily assist you with an upgrade to your order. Learn more.
At The Underfloor Heating Store, we are committed to providing our customers with high-quality products and outstanding customer service. That's why we offer a comprehensive warranty on all of our underfloor heating products, with a lifetime warranty for our ProWarm range of products.
Our warranties are designed to give you peace of mind and ensure that your underfloor heating system operates reliably for years to come.
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At The Underfloor Heating Store, our main priority is customer satisfaction. To cement our commitment to this, we are proud to offer our Underfloor Heating Price Match Promise. If you find a lower price on an identical product anywhere else, we will match it – guaranteed!