Following on from my earlier post - //www.diynot.com/forums/viewtopic.php?p=1200092#1200092
System - Glow Worm 30 cxi combi in bungalow loft.
4x medium sized rads & 2 small rads.
TRVs on all rads, except hall rad.
Problem - As the TRVs on some rads that are on a lower setting than some of the other TRVs start closing, the TRVS on the rads that are still open start hissing loudly. Even If I have the heating on with all TRVS set to max, after 20 mins or so, a few of the TRVS start hissing, although not so loudly as the previous situation.
Am I right in thinking that is is quite a powerful boiler for a small number of radiators? It seems that as some TRVs close, the pressure in the system increases causing hissing noise as the water passes through TRVs that are open.
Someone suggested turning the boiler pump down, will this help? Can I do it myself?
Alternatively, is it the TRVs that are at fault? They are a budget (caleffi) brand.
Any suggestions would be appreciated.
System - Glow Worm 30 cxi combi in bungalow loft.
4x medium sized rads & 2 small rads.
TRVs on all rads, except hall rad.
Problem - As the TRVs on some rads that are on a lower setting than some of the other TRVs start closing, the TRVS on the rads that are still open start hissing loudly. Even If I have the heating on with all TRVS set to max, after 20 mins or so, a few of the TRVS start hissing, although not so loudly as the previous situation.
Am I right in thinking that is is quite a powerful boiler for a small number of radiators? It seems that as some TRVs close, the pressure in the system increases causing hissing noise as the water passes through TRVs that are open.
Someone suggested turning the boiler pump down, will this help? Can I do it myself?
Alternatively, is it the TRVs that are at fault? They are a budget (caleffi) brand.
Any suggestions would be appreciated.