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EasyFlow provide an electric hot water heater installation service in the Manchester and Liverpool areas. We have qualified engineers ready to install your new water cylinder. Many original water cylinders that were installed when apartments were first built are now coming to the end of their lives and need replacement. We would be happy to quote to installation an unvented cylinder for you, visit this page for our Terms of Supply
Traditionally the delivery of hot water to appliances in domestic properties relied on gravity. The pressure delivered at the tap or appliance relies on the height of the cold water tank above the highest outlet. This is usually the shower on the top floor of the property. With gravity systems you can notice the increase in water pressure if the shower head is held low down close to the shower tray.
Components of systems designed for use in gravity systems are not suitable for use in mains pressure systems. For example in addition to changing the hot water storage cylinder you may have to change the shower cartridge to enable it to cope with the increase in pressure, the valves on the toilets in the case of balanced pressure and possibly other the cartridges in other outlets.
There are two types of mains pressure hot water system
The term vented refers to whether the system is vented to atmosphere or closed to the atmosphere and therefore pressurised. It is because unvented systems are closed that special safety precautions have to be taken. Without these precautions the water within the system could become over heated and over pressured with disastrous results
The negative aspects of thermal stores also apply to all mains pressure water heaters
When the valve was inspected the EasyFlow engineer noticed that the original installation was incorrect. If you look at the photo titled ‘Faulty and Incorrectly Installed Valve’. The single check valve installed (and partially hidden by the cylinder) should not have been installed after the expansion valve.
Properties with mains pressure water systems will have mains pressure at all hot taps and water appliances. This can also apply to cold water. This is achieved by first taking the supply for the hot water directly from the incoming water supply and then taking a branch pipe off this for the cold supply. From this point on there are two sets of pipes in the property; one for hot water and one for cold. Both sets of pipes are directly connected to the main supply and both rely on the main supply for their pressure and flow. The cold pipework provides the supply to the cold water outlets, the other passes through the hot water cylinder and from there to the hot side of the system. A balanced system, where the hot and cold water are delivered at the same pressure, have the hot and cold water branches at or just after the pressure reduction valve. An unbalanced system will have the cold water supply branched off before the pressure reduction valve.
Visit the following pages for more information
Joanne, Warrington
8 January 2024
Annual Service
Richard, Bolton
14 December 2023
Annual Service
Brian, Wilmslow
15 December 2023
Annual Service
Waheed, Hertfordshire
1 January 1970
No Hot Water
Excellent service as usual.Despite the terrible weather and the lift being out of order
JUDITH, Glossop
28 December 2023
Annual Service
Peter, Liverpool
30 November 2023
Annual Service
Jonathan, Liverpool
22 November 2023
Replacement Valves
Dominic, Chorlton
6 November 2023
Heating Control Replacement
An excellent service as usual and Chris was very helpful and informative.
Derek, Chester
2 October 2023
Annual Service
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