Recent content by ajph

Almost a year has passed, and I've finally got to the bottom of the problem. I asked my gas engineer neighbour to test the burner pressure when there was DHW demand and it stayed at the lowest value regardless of the water flow rate. It transpired that the Modureg valve had become stuck and...

Ok, I measured the gas consumed by the boiler whilst running DHW with the tap fully open by photographing the meter twice with my phone over a few minutes. The result: Over 220 sec - 0.087m3 of gas This equates to 15.3kW if I've read the gas rating post correctly. The outbound central...

Thank again for the sensible suggestions. I've not been around much for the past week, but I've just now had a look at the DHW temperature: Max flow rate is somewhere between 10 & 11 l/min When running the DHW @ 9 l/min I measured the following: Cold water supply to boiler: 10°C Hot...

Thanks for that Tony, I'll have a word with the neighbour to see whether he has a contact test meter and see what I can find out.

I have an ageing Worcester 240 RSF boiler that has given good service for the three years that I have had it. I'm keen to hang on to it as general opinion seems to be that they are very good boilers, but it doesn't seem to be capable of heating the same flow rate of water now as it did when we...