thanks @Johntheo5. Unfortunately, by the time I remembered to check the d.40 & d.41 temps, the heating had already been running for 30 mins from cold this morning. I guess I will need to wait until later in the day when the rads heating starts again to immediately check what d.40 & d.41 are showing. We have the heating set to run for a few hours in the morning.
I have not changed d.05 so this is still set at 65C. I have noticed that the boiler has been happily running for 30 mins and is showing s.04 which is presumably expected. The rads nearest to the pump are piping hot but the rads away from the pump are luke warm at best. Since an s.53 has not kicked in yet, if the rads that are away from the pump are luke warm, does this point towards a possible issue with the pump? I am thinking that if there is a blockage somewhere in the rads heating, the delta between the boiler flow & return (d.40 & d.41) would shoot up and trigger the s.53 or am I completely off track? .
I have just now gone to see what the boiler is doing in the garage after running for 35 mins from cold. The boiler is showing s.04, d.40 is 65-66 and d.41 is 46. The house is still being heated and the rads away from the pump are very, very slighly getting warmer but no where near as hot as those rads near the pump.
I had forgotten to change the UPS2 25-80-180 pump setting from III to I. I have just felt the pump and it is very hot. I have now changed the setting to I. I will wait to see what this does as the hallway where the room stat is located is warm and therefore the temp in the hallway has reached 22C which is what the room stat is set to. What should I look out for, now that the pump setting has been set to I ?
@Johntheo5 - thanks for all the graphs and data in the spreadheet but TBH, I am lost in what this is telling me .
Later this afternoon, I will test the UFH system on its own. The orangery where the UFH system is installed consists of a concrete screed floor and porcelain tiles for the floor finish. I assume that if I increase the mixed flow temperature in the UFH, this will not damage the floor covering I have?
If I have to resort to changing the boiler (which I am happy to do if it solves the problems and especially as the boiler is 13 years old), is there a particular boiler you would recommend?
I have not changed d.05 so this is still set at 65C. I have noticed that the boiler has been happily running for 30 mins and is showing s.04 which is presumably expected. The rads nearest to the pump are piping hot but the rads away from the pump are luke warm at best. Since an s.53 has not kicked in yet, if the rads that are away from the pump are luke warm, does this point towards a possible issue with the pump? I am thinking that if there is a blockage somewhere in the rads heating, the delta between the boiler flow & return (d.40 & d.41) would shoot up and trigger the s.53 or am I completely off track? .
I have just now gone to see what the boiler is doing in the garage after running for 35 mins from cold. The boiler is showing s.04, d.40 is 65-66 and d.41 is 46. The house is still being heated and the rads away from the pump are very, very slighly getting warmer but no where near as hot as those rads near the pump.
I had forgotten to change the UPS2 25-80-180 pump setting from III to I. I have just felt the pump and it is very hot. I have now changed the setting to I. I will wait to see what this does as the hallway where the room stat is located is warm and therefore the temp in the hallway has reached 22C which is what the room stat is set to. What should I look out for, now that the pump setting has been set to I ?
@Johntheo5 - thanks for all the graphs and data in the spreadheet but TBH, I am lost in what this is telling me .
Later this afternoon, I will test the UFH system on its own. The orangery where the UFH system is installed consists of a concrete screed floor and porcelain tiles for the floor finish. I assume that if I increase the mixed flow temperature in the UFH, this will not damage the floor covering I have?
If I have to resort to changing the boiler (which I am happy to do if it solves the problems and especially as the boiler is 13 years old), is there a particular boiler you would recommend?