I had a Telford Tempest Mains Pressure Domestic Hot Water System installed 3 years ago, It works fine in terms of producing hot water BUT if we use the hot water whilst the boiler is heating the system or just after when the water must be at its hottest, we get the most horrendous groaning from...
I had a Telford Tempest Mains Pressure Domestic Hot Water System installed 3 years ago, It works fine in terms of producing hot water BUT if we use the hot water whilst the boiler is heating the system or just after when the water must be at its hottest, we get the most horrendous groaning which...