An unvented cylinder is a hot water storage system that does not rely on a feed and expansion tank. Instead, it is directly fed from the mains water supply and features a pressure relief valve to ensure safe operation. The cylinder is typically heated using an immersion heater or a boiler, and it can provide hot water to multiple outlets simultaneously.

The benefits of using an unvented cylinder are numerous. First and foremost, because it is directly connected to the mains water supply, it can provide high water pressure throughout the home. This is especially important for properties with multiple bathrooms or high water demand. Additionally, unvented cylinders are highly efficient, as they do not suffer from heat loss associated with traditional vented systems. They are also more hygienic, as the lack of a feed and expansion tank eliminates the risk of bacterial growth.

When selecting an unvented cylinder, it is important to consider factors such as capacity, insulation, and compatibility with existing heating systems. There are numerous options available on the market, and it is worth consulting with a qualified heating engineer to determine the best fit for your specific needs. Overall, an unvented cylinder can be an excellent choice for homeowners looking to improve their hot water supply and energy efficiency.

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