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Says “cost effective “ at £630 I wonder how long it would take to pay back, also for combi boilers only, so no good for me...Products do exist but they are costly. Kop
Discuss Central heating pump sizing in the USA area at PlumbersForums.net
Says “cost effective “ at £630 I wonder how long it would take to pay back, also for combi boilers only, so no good for me...Products do exist but they are costly. Kop
Hello, there must come a flow temperature that just doesn’t release enough heat to be comfortable, not sure if flow temperature and radiator heat release is linear. Just seeemed to make a difference when I lowered it to 62oC.....no idea if its the same temperature at the TRVs all rads do get hot, so assume that must be the case.....I maybe thinking wrong but how can 2dc make a room feel colder when it’s well above the room temperature
I could understand if the flow temp was 40 but not 60dc you sure you have a flow temp at 62dc at all your trvs ?
interesting stuff would love to se your spreadsheet, can you attach ?Should also add another bit of info.
If your room(s) should suddenly fall to 10C then the flow/return/output will be
65C/56.6C/7.35kw. 5C roomtemp = 65C/55.6C/8.21kw & 0C = 65C/54.4C/10.6kw.
The most interesting part of all this is that the return temp doesn't change much in any of the above so it looks like any system with fixed flow temp and fixed flowrate will never condense under any conditions except at start up
Can give you a dummy email address that I keep for such purposes.......I will try once again but for the past few months havn't been able to attach any, they used to attach no problem previously in zipped form.
Reply to Central heating pump sizing in the USA area at PlumbersForums.net
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