There are 5 main types of hot water cylinder available. Each with different operating methods and for different purposes.

Unvented

Unvented Cylinders work off the mains pressure water, and therefore use the water mains pressurised system to move the domestic hot water around the property, and so eliminates the need for a header tank in the loft.

Unvented Cylinders offer higher hot water flow rates, and are therefore able to provide higher water pressure for showers, baths etc.???? As an Unvented Cylinder does not require a feeder tank, this frees up valuable space in the loft area, and also gives you the option to site the Cylinder anywhere you want thus freeing up further space in your airing cupboard.

Unvented Cylinders are generally manufactured out of top quality stainless steel, this ensures long life and durability, and Unvented Cylinders can also carry a manufacturer’s guarantee of up to 25 years. E.g. the Gledhill cylinders range. Other Manufacturer’s guarantees may vary.
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