Hello Im after some advice ... Had a new valiant boiler fitted 2 years ago and had TRV valves fitted on all radiators apart from the one in the bathroom as the plumber said you have to have one without..... Our house was always a warm house.... Since having the boiler fitted the radiators are red hot from top to bottom on all radiators but the rooms do not get warm as before.... If you put your hand over any of the rads even though there red hot you can not feel any heat above rising where with our old system you could put your hands over quite high and feel the heat..... The only difference from before is the boiler and the TRVs.... Does anybody have any advice as would be aporiciated Thankyou......