StartFragmentAn unvented cylinder is a type of domestic hot water storage tank that is supplied directly by the cold water mains, providing high mains pressure to taps and showers, and eliminating the need for a cold water feed tank. As a sealed, unvented system, it requires an expansion vessel to manage pressure increases from heating water and relies on a G3 qualified engineer for installation and yearly maintenance. The water is heated by either an immersion heater (direct m...
StartFragmentA powerflush is a deep-cleaning process for central heating systems that uses a special machine to circulate cleaning chemicals and high-pressure water through pipes, radiators, and the boiler to remove accumulated sludge, rust, and debris. The process aims to improve heating system efficiency, reduce energy costs, prevent cold spots on radiators, and extend the life of the system by preventing blockages and breakdowns. How a powerflush works:Draining the system:&n...
