The combe boiler we currently have keeps going faulty, we have low mains water pressure and have been told a combi isn’t suitable. We have no water storage tanks. Anybody know what boiler type to recommend.
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2 Responses to “Help we have low water pressure and need a new boiler, we currently have a combi so no tanks any suggestions?”
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Most combi’s operate at as low as 0.5–1.0 bar pressure, I wouldn’t think that low pressure would keep making your boiler break down. What were the faults?? Look at Vaillant combi’s or speak to Vaillant for advice. You could get your pressure tested by a local plumber or your water supplier should be able to tell you. If the pressure really is too low you would have to fit an automatic booster pump to your mains supply.
A combination boiler should not have been installed if you do not have enough pressure, a combi will break down because of lack of pressure, they should be operated at minimum 1 bar (whether vaillant or not is irrelevant), Vaillant and Worcester Bosch are the best boilers on the market, but Worcester are more local (near Birmingham) and have more approved installers, you cannot force mains pressure with a pump, either install tanks (size would be determined by usage and flow rate from the mains), or upgrade your water supply to private main, (you are likely on the common main), the water board will connect you at the border of your property, but from there to your house is your responsibility, both are chargeable and a plumber would do the work from the boundary to your house.