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Last seen: Sep 19, 2024
@guthrie The red and white vessels will be expansion tanks, one for the heat pump water circuit and the other fro the Domestic Hot Water (DHW). To...
@cathoderay Have a look at page 143 of the attached manual.
Welcome to the forum. I cannot see an error 01 in the manual for an Ecodan, which may or may not be relevant. When you say the heat pump is running...
@cathoderay It is quite simple really. Like decimal, binary can be represented in rows and columns. Decimal. Binary. Tens. Un...
A further factor to consider is how the setback is achieved. If it is by using the WC offset, it may just be reducing the LWT by the offset, and raisi...
@cathoderay I fully agree that the heat loss will reduce as the IAT reduces at a constant OAT. If the LWT is now returned to the value it was prio...
@cathoderay Many thanks Ray.
@cathoderay If you can provide all the variables covering the past week at 1 minute intervals that should be more than adequate.
What you suggest is fine whilst the weather is reasonably mild, although inclement. My concern would be when the temperatures get colder, the IAT woul...
I suspect the recovery is taking longer today because the IAT was lower, and because you are limiting the permitted LWT increase to 3C, this in turn i...
@sunandair I suppose the starting point would be to try to ascertain if your desired control philosophy is actually achievable. If you expect (as ...
@josephiah When the clocks changed, did you manually change the time on the controller or did it occur automatically? Try changing the time back to ...
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Degrees of Separation
Latest Posts
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@batpred They offered both, I went with Pro. As an amat...
By baroquebank , 3 hours 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 , 23 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 , 2 days 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 , 2 days 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 , 2 days 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 , 2 days ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 2 days 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 , 3 days ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 3 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 , 4 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 , 4 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 , 5 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 5 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 , 6 days ago
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