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The use of an expansion vessel with a water heater of 15 litres or less is optional. However, there are some instances when it is recommended to include an expansion vessel.
An expansion vessel is used to absorb pressure when the water in a water heater heats up and expands. With water heaters below 15 litres, this water expansion is often absorbed by the mains cold feed pipe. However, obstructions on the pipework (such as a check valve, stop cock, pressure reducing valve, etc) can prevent expansion from being absorbed this way. Thus, an expansion vessel is needed.
Essentially, if there is an obstruction 2.8 metres from a 10-litre water heater or 4.2 metres from a 15-litre water heater, the KIT A Expansion Vessel and Check Valve is recommended. Otherwise, the extra pressure will make the safety valve/pressure relief valve discharge and risk overheating the water heater's thermostat.
We aim to get your order to you as quickly as possible.
All paint products are shipped within 1–3 working days, depending on stock availability and order volume.
Once your order has been dispatched, you will receive a tracking number so you can follow your delivery.
Please note that custom color-mixed paints cannot be returned. These products are mixed specifically for you, based on the color you select, and therefore cannot be resold.
We will, however, accept a return or provide a replacement if there is a manufacturing issue or if the color you received does not match the color ordered. If this happens, simply contact us with your order details and photos, and we’ll take care of it.
