Last seen: May 2, 2025
My original βdesign" from my installer for my 11.2KW heat pump was a 9 zone system. One of the zones had a flow rate of under a litre a minute. That...
@gergoh The 8kw newish r290 Mitshi machine can modulate really low. might be a good option.
@ashp-bobba I'm not a heating engineer, but with a heat loss of 2.5kw at minus whatever, is there any heat pump that can modulated low enough ...
@cbrenewable What's the heat output each day for the last few days, and the input. My COP is 6 and over at the minute. The big rads not gettin...
@cbrenewable Hi, the graphs from Mel pump would be good. Can you draw your system, have you got a low loss header? or are you directly piped into ...
@sandman1600 you need to measure whats going on really before you make loads of changes. If you can measure the temp of the flow and return to and ...
the reason why cop is bad is the delta t's on the primary circuit are small, so its not giving out much energy by the mitshi calculations. nobody kno...
Has anyone been to check what is going on with the secondary side of the system with the UFH? Iβve not read all the posts recently. The minimum modula...
Yeah, big balance isnβt it. Big enough to heat commonly cold days, but not so big ruins more typical temps. im not sure where in the country the unit ...
Iβve circle your compressor output. Itβs just going from low to minimum output to off. And then as we thought, off all day. But itβs warm today, but m...
@sandman1600 itβs tricky. Looking at the graphs: itβs not ideal. Itβs on/ off all the time as it canβt modulate lower. Personally, Iβd not be hap...
@gary mine was βdesignedβ to 45, bit system canβt get above 36. That bit was nonsense. from looking at your graphs of one day: youβve got loads of ...
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RE: Benefits of an extra horizontal loop for GSHP
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Is this just haze or something more?
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RE: The good, the bad and the not that great β my heat pump installation
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RE: No-code, plug-and-play monitoring for your heat pump
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RE: Say hello and introduce yourself
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@seatonian got your email. Will connect you with a reco...
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RE: Antifreeze top up for my heat pump - is this a rip off?
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RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW
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RE: Air source heat pump roll call β what heat pump brand and model do you have?
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