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Last seen: Aug 20, 2026
@transparent You have previously commented that there is little or no correlation between retail price and carbon intensity. Are you able to share th...
As @harriup says this needs to be fixed. Its worth noting that, later in the season, when defrost occurs, there will be short periods when return i...
This is exactly what the smart heat pump controllers like Homely, Passiv, Havenwise and Adia claim to do, taking into account weather forecasts, futur...
You have a house with an enviously low loss and able to run at an enviously low flow temperature (29C!). I wish mine was like that! At a flow tempe...
Interesting data. Assuming a difference between the intake air sensor and the actual OAT of 2C, and that 600W is contributed from sources other than...
I would say for sure assuming it connects to the heat pump controller.
Many, if not most/all, ASHPs have their own tank sensor. Unlike the immersion thermostat it is analog not on/off so that the ASHP knows the actual te...
Good luck and no rush. Any new measurements that are made will be easier to interpret when it gets colder anyway.
AIT (air intake temperature) and energy will correlate well whatever the IAT is not least because the heat pump controller reacts to AIT alone and the...
Unless the IAT was in fact 19 when you did the energy vs OAT curve, we need to correct for that!
It looked bigger on the charts you posted recently, perhaps more like 2-3 C The difference does make a fair difference to some of the calculations p...
This confuses me. Do I correctly recall that your heat pump (and more importantly OAT sensor) is in a bit of a well so the OAT sensor doesn't measure...
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Degrees of Separation
Latest Posts
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
Cloudy one done, might get the sunny one tomorrow or de...
By Watcher , 7 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 , 1 day 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 , 1 day ago
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At the risk of going on: A slight side issue for a foru...
By Bart , 2 days 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 , 2 days 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 , 3 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...
By BlizzardGreen , 3 days ago
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