Recent content by chris83

Can anyone suggest a practical way of directly measuring the flow rate in a central heating system. My recently installed (Corgi installer) Worcester Greenstar 24Ri never heats the flow water to more than about 50degC., even though the temp. at the top of the aluminium casing on the heat cell...

Selecting the middle pump speed makes little or no differnce. Switching to the lowest pump speed perhaps makes the boiler cut out sooner. The boiler is on constant demand because at the moment the room temp. is never satisfied. The flow pipe is always hottest, all the radiators get hot but...

The boiler temp is set to max. The pump is on the max speed The installer did not balance the system. All rads. are fully open with the temps. stated Sometimes the boiler runs reasonably steady between 45/50deg flow, sometimes it cuts out at this temperature. I have had it once at about 55deg...

Thanks for the replies, I had several quotes for the boiler replacement and only one asked for room details to size the boiler. I gave him dimensioned floor plans. He quoted for a 30CDi Worcester boiler ! I used the boiler calculator as suggested and it came up with 19.3kw. Most of the...

I had a new Worcester 24Ri fitted to an existing system a few months ago and now the flow temperature never gets above about 50deg.C. ( (measured with pipe thermometer) The Worcester service guy has visited 3 times , replacing the heat cell and the control circuit board. Each time the...