Joule Unvented Cylinders August 12, 2019 The Joule range of un-vented cylinders are fantastic, I’m told they are the UK’s fastest-growing cylinder brand. Quality built and high-end performance, with a wide range of models available you can be sure there is a model to suit. With the introduction of the ErP Energy Related Product certificate scheme under an EU directive, Joule is leading the way by offering a complete range of A, B & C rated cylinders. The same quality is available across all rated cylinders. The Cyclone brand is noted for its attractive grey finish. Noticeably there is no cheap plastic used on the outer casing. Inside is a duplex stainless steel body, 316L grade stainless fittings and coils.Quality coils. Unlike most cheaper brands on the market, the Cyclone 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 as the smooth stainless tube.Single high recovery coil.Smooth tube coil construction for durability and performance.Compression connections fitted as standard.Bevelled stat pocket for better fitting.Metallic grey wipes clean rigid case for a premium appearance.Pre plugged secondary tapping for ease of installation.All Connections clearly labelled.Butt Welded process used throughout.Robotically welded.Branded quality components. I recently fitted the 300L Cyclone High-gain which has an impressive 17-minute heat-up time from cold via an 80C coil flow temperature. The cylinder was C rated energy efficiency class and a pleasure to install.