Last seen: May 27, 2025
@jamespa I would have thought you can get a pretty good idea from vintage and flow temperature, almost certainly good enough to act as a sense check f...
I am talking about the 900+ installations I personally have done over the last 15 years, not a single one cold and all with SCOP's between 4 and 5. I ...
@jamespa There are many theories that may or may not help with heat loss, however, in reality, in a new build property, it is irrelevant as 80-85% of ...
@majordennisbloodnok Everything we do is about assumptions, we do not have x-ray eyes that will expose the failures of the building industry, so accur...
🤣 🤣 I have only put in over 900 heat pumps, so what do I know 😊
@Jancold Your kitchen would not have been cold, 18 degrees C is the temperature kitchens should be designed to because there are significant amounts...
@jamespa I agree wholehatedly.
@jamespa I agree with nearly everything you have said. However, today heating systems are critically undercharged for if you take inflation in to acco...
@johnmo It appears you do not value expertise or experience. Do you put your own fillings in your teeth? I think not, you pay an exorbitant rate for a...
All 3 drawings are hydraulically separated and are all buffer tanks. The third does not show a pump in the heat pump, which there has to be one, or wa...
@ecobaker Your system volume will be fine, just make sure you get the right flow rate with all TRV's open and at least 8 l/min with all closed. Leavin...
Hi It does not matter which side the pump is on, it is a circuit. You must however make sure that you have enough open zone system volume and flow. ...
Latest Posts
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RE: Mitsubishi cycling while on chilled water output
I think that explains it. Unless you can somehow incre...
By JamesPa , 4 hours ago
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RE: Adding battery storage to SolarEdge PV system
@chandykris No need to apologise at all! I forgot to ad...
By Toodles , 7 hours ago
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RE: Say hello and introduce yourself
Yes please do Suggesting a loss in the region...
By JamesPa , 8 hours ago
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RE: Surface mount or bury primaries for heat pump installation?
Can we have some links to those you're considering plea...
By Transparent , 8 hours ago
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RE: Weather compensated secondary circuits with Biomass
If anyone’s going to know the answer to this it’s @sune...
By Mars , 16 hours ago
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RE: Commencing on an ASHP Installation Process
That outside pipework would concern me. Surely rigid se...
By benson , 1 day ago
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As I have reported elsewhere we turned on the cooling o...
By downfield , 1 day ago
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@el3b Hi, sorry to hear that, it is advisable to instal...
By ASHP-BOBBA , 2 days ago
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RE: Difficult positioning of air source heat pump
@rikiarn Out of intrigue, the thread reads as though Ai...
By Sheriff Fatman , 2 days ago
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RE: Mitsubishi Ecodan Fails to Heat Water despite temperature drop
@m1kegibson If you are able to access the service me...
By HarriUp , 2 days ago
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RE: When will heat pumps and install prices come down?
... which of course is impossible because the world mov...
By JamesPa , 3 days ago
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My advice is reject unless they will delete the buffer ...
By JamesPa , 3 days ago
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RE: Battery storage to run Heat Pump.
I would be surprised if the battery chemistry is going ...
By Transparent , 3 days ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
@dowallydrifter OK. I would recommend you read t...
By JamesPa , 4 days ago
