Hi all, newbie here requesting advice please. Having had my first combi boiler installed recently to replace a 30 year old traditional system I am not convinced that it is working quite as it should. I was under the impression that these modern combis are supposed to heat up pretty quickly but my newly installed vaillant ecotec pro 28 seems to take an age to get up to operating/requsted flow temp.
System as follows
2 up 2 down mid terrace - 7 average size type 21 radiators
vaillant ecotec pro 28 with Honeywell digital wireless stat
Heating flow temp at boiler set at 65C, all other settings ie partial load, pump overrun, anti cycle at factory settings.
Example of operation
Got up this morning at 8 with temp on stat reading 17.5C, whacked it round to 24C, boiler fired up but to me it doesn't seem to fully fire up, running really quiet and flow temp increases really slowly, took over an hour for boiler flow temp to reach the set temp of 65c therefore the rads only warm up slowly, don't get me wrong when boiler flow temp is up to 65 the rads are red hot but just takes an age to get there, is this right? Cheers in advance for any advice. Merry Xmas
System as follows
2 up 2 down mid terrace - 7 average size type 21 radiators
vaillant ecotec pro 28 with Honeywell digital wireless stat
Heating flow temp at boiler set at 65C, all other settings ie partial load, pump overrun, anti cycle at factory settings.
Example of operation
Got up this morning at 8 with temp on stat reading 17.5C, whacked it round to 24C, boiler fired up but to me it doesn't seem to fully fire up, running really quiet and flow temp increases really slowly, took over an hour for boiler flow temp to reach the set temp of 65c therefore the rads only warm up slowly, don't get me wrong when boiler flow temp is up to 65 the rads are red hot but just takes an age to get there, is this right? Cheers in advance for any advice. Merry Xmas