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Last seen: Aug 20, 2026
Im not an expert on pump curves (or indeed very much else) however there is a good guide to reading pump curves here/p> I think the way to look ...
They decide is by measuring the flow/return temperature. The control loop adjusts the output of the heat pump (within the limits it can achieve) to g...
Fascinating. Referring to your first post, is it a cycle or a defrost. It looks like the latter but maybe Im misreading. Can you confirm Understa...
Planning officers tend to be black and white in their approach in my experience so minor or not it's a breach. In practice it almost certainly hangs...
Thats odd. I have experienced a (Drayton TRV4) which is stuck open because a plastic insert inside the head about 4mm dia and 2mm thick had somehow f...
Cue the 'ignore climate change and it might go away' lobby running articles telling their readers that heat pumps have been cynically rebranded by the...
The peaks in your graph (which I presume are the 'spikes' you are referring to) appear to be at different FTs. What is the set FT, what is the set FT...
Its a good thought however - my interpretation is: The physical installation falls within the legal definition of 'development' (and thus requires...
Is it spiking or is it gradually reaching the required FT following a defrost. You can tell it is going into defrost mode (which is expected given cu...
Correct Whoa! The change has been announced this week but the rule is still in place until the law changes (which it is said will be next year b...
Indeed, it's scaremongering. The same outlet also ran a headline predicting civil unrest as a result of the changes.
There is now an MHCLG blog on the subject which clears up some of the inconsistency in the reports. MGCLG is actually the department responsible for ...
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Latest Posts
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@lizzie that is useful info, thanks. I’m currently con...
By AndrewJ , 5 hours ago
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RE: The good, the bad and the not that great – my heat pump installation
@burtis, I’ve followed this thread pretty much from the...
By Mars , 16 hours ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
First time poster here but I can share my experience as...
By SCH , 22 hours ago
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At the risk of going on: A slight side issue for a foru...
By Bart , 1 day ago
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RE: Is it the house or the equipment?
...which, I've found out, is pretty much impossible to ...
By Majordennisbloodnok , 1 day ago
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RE: Mitsubishi Ecodan FTC6 settings
The Mitsi remote thermostat should not be plugged into ...
By F1p , 2 days ago
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RE: PV and battery long payback - sense check query
@jamespa I was just commenting on the speed, not sug...
By Batpred , 2 days ago
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Readers here please note that Derril Water and many oth...
By Transparent , 2 days ago
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RE: Advice on Vaillant Sensocomfort
Oops, I meant Sensocomfort (the UI to the controls)
By Batpred , 2 days ago
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RE: Heat Pump Training vs. Real-World Installation
Our instal was very much the opposite. White haired blo...
By Batpred , 2 days ago
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RE: Flushing system, cleaning and inhibitor
While skim reading a manual for our Vaillant HW tank, I...
By Batpred , 2 days ago
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RE: 'Chinese Diesel Heater' to heat the home .....
Old thread but I'm new to the forum so new to me. How...
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