An unvented system provides a modern and highly efficient way to deliver hot water to your home. Unlike traditional vented systems, an unvented cylinder eliminates the need for a cold water storage tank in the loft. Instead, it heats and stores water under pressure in an insulated tank, ensuring a reliable and continuous supply on demand. This system works well in homes with limited space or high hot water demands.
We design our systems for maximum efficiency and convenience. The system pictured here includes expansion built into the hot water cylinder using an air pocket. This innovative feature removes the need for an external vessel, saving space while maintaining excellent performance. Since unvented systems operate under pressure, they provide balanced hot water flow to all outlets, ensuring an optimal experience in bathrooms, kitchens, and en-suites.
For the best performance, an unvented hot water system requires a minimum pressure of 1.5 bar and a flow rate of at least 20 litres per minute. Proper testing, design, and installation ensure balanced water pressure and consistent flow throughout your home. If your property lacks the required pressure and flow rates, installing mains booster pumps and accumulators enhances water availability and improves overall system efficiency.
One key advantage of an unvented cylinder is its ability to deliver strong water flow without additional shower pumps. Because the system operates under pressure, it supplies multiple outlets efficiently, even in homes with several bathrooms. Our fully trained engineers design each hot water tank to meet the latest industry standards, ensuring long-lasting reliability and high performance.
We tailor each hot water system to match the unique needs of your home. With a focus on safety, efficiency, and performance, an unvented hot water system offers a reliable solution that enhances daily comfort.