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Last seen: Nov 9, 2026
I went on Wednesday. It was definitely and interesting day and there were definitely positives but, TBH, I was mostly a bit underwhelmed by progress (...
@dowallydrifter OK. I would recommend you read this introduction to ASHPs to help you understand a bit more about them and explain the terminol...
@m1kegibson did you try calling Mitsubishi as suggested by @ashp-bobba, it may be the easiest fix!
What's the 40C shown on the display? It might be worth changing settings and changing them back, it feels like something might be out of sync betwee...
What, if anything, are you finding difficult. What are the weather comp settings?
This is correct. Inverter limits protect grid and internal wiring. Depends on your tarrif. For me it makes sense to heat dhw at night at 6.7p/kWh...
Looking at those photos I agree with @ashp-bobba. To put it another way it looks like its targeting a DHW temp of 40 not 50, which means that it wil...
There are DHW tanks with a built in heat pump that take their intake from the house, the outside world or the loft. Sometimes these are described as ...
By manual I meant constant/DHW priority, ie it should reheat once the temperature drops below (target - hysterisis). Are you certain (a) the unit has...
If it heats reliably when triggered from melcloud it points more to a control misconfiguration than to anything physical. Holiday mode, selecting m...
If the thermostat is connected to the call for heat terminal on the vaillant or myson then I suspect it's also a call for cool (IE an 'enable'). If y...
Good luck. Missing rads definitely was a problem for me. The fancoil was supposedly on 3 month delivery (but actually turned up 4 days later!) and t...
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Degrees of Separation
Latest Posts
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RE: Adventures in heat loss calculations
@rob-of-york In my experience, energy used to supply DH...
By Toodles , 29 minutes ago
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RE: Should Households Who Can Afford It Pay More for Energy to Help Those Who Can't?
@mars Whatever method of alleviating the high cost of e...
By Toodles , 33 minutes ago
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Grant Aerona - Weather Compensation and Schedules
Im trying to set up a friends Grant Aerona. The WC curv...
By bontwoody , 1 hour ago
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RE: Why don't people choose heat pumps?
Absolutely nothing in the regs prevents this, nor does ...
By JamesPa , 10 hours ago
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RE: Air-to-Air Heat Pumps & Air Conditioning: UK Heating and Cooling Q&A
@jamespa I agree, the efficiency of Cosy Cooler ought...
By Rob of York , 10 hours ago
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RE: How much of your renewable and home setup would still work if the internet went down?
I think you're right! 🤨
By Transparent , 22 hours ago
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RE: Renewables & Heat Pumps in the News
ECO4 muddies the water somewhat, and then some. I thi...
By cathodeRay , 23 hours ago
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RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
If there is a drain nearby that's exactly what I would ...
By JamesPa , 24 hours ago
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RE: DIY powerflushing tutorial
This is what bacterial growth in UFH loops looks like. ...
By Pirate Rich , 1 day ago
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I think that CCGT plant in Lingen is more likely to suc...
By Transparent , 2 days ago
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RE: Heat Geek installations: share your experiences
@l8again fwiw my experience (Valiant but not with heat ...
By JamesPa , 2 days ago
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RE: How Can I Prove Coal Was My Main Heating Source Without Receipts?
@etchedpixels thank you for the advice paid cash all...
By Chilli304 , 3 days ago
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@susannasaunders An interesting conversation to have ...
By Rob of York , 4 days ago
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RE: Electricity price predictions
@rob-of-york sounds like a term that Heidegger would...
By Papahuhu , 4 days ago
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RE: Adding data centre electricity costs to domestic energy bills?
never ceases to amaze me.. Keeping steel works going ...
By Batpred , 5 days ago
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