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Last seen: May 24, 2026
No it shouldn't, the pressure should stay fixed at what ever you set it to - which is normally about 1.5bar. It should never go to zero and back up t...
It sounds to me as though the bladder inside the expansion tank has failed. I recommend you get this checked as soon as possible before excessive pre...
@dr-h I'm not a heatgeek professional (although I am a geek 😉 ) The heatgeek "pink cylinder" is a thermal store with a coil inside. The water fr...
That'll do it 😉 Can you go lower? Bob
OK, please forgive me, what does that mean? Using less what? Insulation? The installation manual for the Ideal Logic Air says there is a temperatu...
That insulation doesn't very good to me, maybe others can comment. The last picture is different to one of the earlier ones. There seems to be a pa...
OK, so...completely by accident I was reading the installation manual for this heat pump. The manual says it has a "cold start protection mode". "...
Hello, please can you post some pictures of the pipework as it comes out of the back of the heat pump, up the wall and into your house. It looks as t...
The flow restriction to your living room radiator is likely to be the pipes and valves. Swapping the radiator for a fan coil might not give you addit...
You need to adjust the surface emmissivity setting of your thermal camera. Try this, assuming you have a metal kettle with a polished exterior surfa...
Here's a quick spreadsheet I put together that shows how compressor discharge temperature varies according to pressure ratio. The data is based on P...
Just a thought, do you have underfloor heating? The comment "started cycling as the return temp increased" makes me think you're seeing a benefit of...
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Degrees of Separation
Latest Posts
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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 hours ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
Sooooo, what did we do in the end? We approached three ...
By Penval , 3 hours 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 , 8 hours 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 , 10 hours 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 , 10 hours ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 11 hours 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 , 1 day ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 1 day 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 , 2 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 , 2 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 , 3 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 3 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 3 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 , 4 days ago
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