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Noise comming from pipes and from what I have been told on this site my problem is noise bouncing from TRVs which are fitted to all radiators except hall where room stat is. Some of the TRVS were 1 way and were on the return - I have now replaced these with 2 way TRVS. Still getting noise. From...

New boiler installed and noticed noise from 2 radiators. On the forum a member suggested one way TRVS on the return. Have now replaced the one way TRVs that were on the returns with 2 way TRVs ( 4 in total )but I am am still getting a hammering noise from 2 radiators/pipework. If I turn of...

Have installed 927 stat it looks great but it takes for ever for house to heat up. New powerful boiler grant vortex oil 26-36kw. stat is set to oil boiler as recommended by Honeywell and optimisation is enabled but it is not bringing the boiler on enough to heat house. Stat is in hall where the...

have installed a cm927 honeywell room stat/programmer. I would like to use this as my programmer. At present I have it wired so that when stat calls for heat boiler comes on as well as the pump. Once the stat is satified boiler and pump go off. Is it possible to wire so that the pump continues...

2 weeks ago installed new grant vortex condensing oil boiler. Great it heats house up very quickly but since I only have a horstmann basic programmer 425 diadem - decided to install a room thermostat to control heating better. Purchased and fitted cm927 but the house warms up very slowly...