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Last seen: Sep 19, 2024
@cathoderay If you think about what is actually happening, the polynomial trend is probably correct, since the heat pump is not the only source of ...
Maybe you should apply for a job with Huawei, you would probably be able to get 'access' legal or otherwise then. 😋
No, it's not a scam, honest. I just want to be rich. 😋 Joking apart it is probably a good marketing technique on the part of Octopus, though so far...
So that Ian Calderbank is trying to steal my thunder, I offered to provide a referral to everyone in the country, so that I could be rich for hours an...
What you appear to be failing to grasp, is that to get 13.6kW of thermal energy to your radiators, via the PHE, the LWT at the heat pump would probabl...
A statistical approach is not really used in the field of Instrumentation and Control Systems, since the primary purpose is to avoid deviation, not ha...
@jamespa CathodeRay stated that the total capacity of his heat emitters is 23kW @ DT50, which he did state was limited by room and location, and the...
For maximum overall efficiency the heat emitter capacity should be as large as possible, but also balanced as closely as possible to the heat loss of ...
Thank you for your input. You are indeed correct, the Laws of Physics are rather strict and don't like someone messing with them. You are also corre...
@cathoderay Can you please confirm your WC curve settings so that we are testing like for like.
The 'weather conditions' are the major factor affecting how an ASHP performs. Note that I use 'weather conditions' rather than OAT, since OAT is not t...
Hi Toodles. As one of the forum moderators one of my duties is to try to ensure that any information provided is as accurate as possible, which is w...
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Degrees of Separation
Latest Posts
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Hi, sorry that I have been absent for a while. I'd like...
By baroquebank , 12 minutes ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
@penval, really useful update. After all the discussion...
By Mars , 4 hours ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 1 day ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
D'oh - of course. I shouldn't post before my brain is f...
By Old_Scientist , 1 day ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 1 day ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 1 day ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 1 day ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 2 days ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 2 days ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 3 days ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 3 days ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 4 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 4 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 5 days ago


