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Last seen: Jan 14, 2025
cynical answer no I wouldn't expect a "typical" ASHP installer to have done a system drawing, and certainly not one that you've said has been "poor". ...
hi danny you mention pumpS , does that mean you have more than one? If yes, do you have a system diagram or an understanding of which pump is circul...
@rich a UPM 25-85 130 is fairly beefy, it may well be enough to run the whole thing. I run a 210m2 house on a single UPM 25-95 130.
@cathoderay your cylinder mfr quotes 2kwh/24h = 83 watts. (FYI Mine's a 300L advance appliances, 69 watts, B rated) the maths is easy, umpteen onlin...
@rich seems to me like you should be able to do what you have drawn, yes the LLH is ruining your COP based on those temps you've measured. the fact...
this shouldn't be the case. If its modern, it has to be well insulated or they can't sell it. Mine has only dropped 1C over 8 hrs. Have you insulated ...
I have a 16, which is the 12 without the de-rating. I wouldn't worry about noise as a primary decision criteria. It chugs away somewhat when its sub z...
@dropbear there's an element of confusion in your write up. you talk about the 300L cylinder being preheated to 65 and then heat with something else t...
@transparent ditto, exact same behaviour , on almost all page loads from this forum today and yesterday. at first I thought I might be having an ISP i...
getting wordpress / site not responding errors quite often - every few days. Too many users, site overloaded?
mine too. didn't think it was quite cold / humid enough but clearly it is. defrost after 4hrs running. the pink highlight is about 0953, when perfor...
@cyrusir if you use an ESP as the modbus master, the ESP is the only thing that has to be wired to the MIM module. the comms from the ESP to your HA ...
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Latest Posts
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RE: The good, the bad and the not that great – my heat pump installation
UPDATE If anyone is interested after 3 years of NAPI...
By Burtis , 43 minutes ago
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At the risk of going on: A slight side issue for a foru...
By Bart , 2 hours ago
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RE: Is it the house or the equipment?
...which, I've found out, is pretty much impossible to ...
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@ian-s I too can provide some insight. We have a Cosy ...
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RE: Mitsubishi Ecodan FTC6 settings
The Mitsi remote thermostat should not be plugged into ...
By F1p , 18 hours ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@lizzie Thank you, very interesting and useful informat...
By Toodles , 21 hours ago
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RE: PV and battery long payback - sense check query
@jamespa I was just commenting on the speed, not sug...
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Readers here please note that Derril Water and many oth...
By Transparent , 1 day ago
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RE: Advice on Vaillant Sensocomfort
Oops, I meant Sensocomfort (the UI to the controls)
By Batpred , 1 day ago
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RE: Heat Pump Training vs. Real-World Installation
Our instal was very much the opposite. White haired blo...
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RE: Flushing system, cleaning and inhibitor
While skim reading a manual for our Vaillant HW tank, I...
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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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I'm not sure why you would want to make it more difficu...
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