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Last seen: Sep 19, 2024
On the cold radiators, have you checked that both valves, one at each end, are not fully closed. Has your heating system been correctly balanced? Ar...
I'm afraid that I don't understand your query. If your heat pump is keeping your home warm at a lower LWT then that is a good thing, since it means ...
@cathoderay I am not suggesting to run permanently on fixed LWT, but to try to get better control over the vicious circle that the heat pump is in. ...
@cathoderay I am sorry to hear that your system is failing to keep your home warm, but I am not surprised, now that the design problems are becoming...
I'm afraid that I cannot see your system from where I am sitting, you will need to provide more details of what is operating and what is not. How many...
Here is one suggestion. A second small heat pump that can provide hot water into a coil type heat exchanger, which is mounted just before, but not t...
I think that a GSHP would have been a better option in your situation.
I suspect that your system needs to be balanced, since it would appear that the majority of the water flow is going to the UFH.
Thanks Toodles, you have put my mind to rest, I will be able to sleep like a baby tonight. 😋
@cathoderay Yes, it is always good to be nice and friendly. I have had a closer look at the raw data that you supplied previously, since it contai...
Increasing the water flowrate should reduce the DT (the temperature difference between LWT and RWT), but may not stop the cycling. Cycling is normally...
What are the settings for the Weather Compensation (WC)? What is the water flowrate? What is the Leaving Water Temperature (LWT) and Return Water Temp...
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Latest Posts
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Not a problem; that’s why I left it as it was. The pers...
By Majordennisbloodnok , 6 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 , 15 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 , 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 , 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 , 4 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 , 5 days ago



