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Hi, I noticed today that my external sounder didn't go off when the alarm was activated. I was making changes to part settings a while back and not sure if I have turned something off. So not sure if it's a new problem or something that's just happened. When I tested the sounders they all worked...

Hi, I've just had a new rad fitted in my bathroom, part of refurb of bathroom. Now the pressure is dropping off constantly in the boiler, the pressure gauge reads zero, when system is turned off. In order to get the system to heat up again I have to refill the system to 1 bar. Is there any tests...

Hi, i'm looking to change the radiators in my house and would like to know if there is anyway to calculate the heat output of the existing radiators. The house has quite large rooms and the radiators seem to be very small, therefore the rooms always feel cold unless the heating is on for...