Unvented Cylinders
An unvented hot water cylinder is a pressurised storage system that connects directly to the mains water supply, delivering fast-flowing, consistent hot water to every outlet in your home without the need for a cold water tank in the loft.
For properties with more than one bathroom or a higher demand for hot water, an unvented cylinder can make a substantial difference to both performance and convenience. DYPH supplies and fits unvented cylinders to a professional standard, with the qualifications and experience required to work safely on these pressurised systems.

How Unvented Cylinders Differ from Vented Systems
A traditional vented hot water cylinder relies on a cold water storage tank, usually located in the loft, to feed the system. This gravity-fed arrangement means hot water pressure can vary and is often lower than what’s coming directly from the mains.
An unvented cylinder removes the tank entirely and instead connects the cylinder directly to the mains, storing and heating water under pressure. The result is a powerful, consistent flow of hot water throughout your home, regardless of how many taps or showers are in use simultaneously. Unvented cylinders are available in a range of capacities to suit different household sizes and usage demands.
Get a Quote for an Unvented Cylinder
If you’re looking to improve your home’s hot water performance with a new unvented cylinder, DYPH is here to help. Our experienced, qualified engineer will assess your requirements, recommend the right system and carry out the installation to a consistently high standard. Contact DYPH today to arrange a visit and receive your free, no-obligation quote.





