Last seen: Mar 29, 2025
From my experience I’ve learned the following: the heat loss calculation is definitly an estimate. For starters the u values of the materials and t...
you can play around with the answers to get to the right value. Like you I already knew the heat loss so I changed the build year until I got the righ...
You might want to give Boxt.co.uk a try. At least for me they had octopus level price, but were able to proceed quite quickly. They also give an upfro...
Maybe the analogy is imagining that cars could just drive faster through those single carriage section. All that acceleration and extra friction would...
My answers to your initial questions: 1. They are all close enough and match your usage figure to be right. I’d say the not so local firm is wrong t...
it’s because there are 10kwh hiding in every Liter of oil.
Hi, I think partly the problem is the immediate feedback that the electricity meter provides, versus the oil boiler where (I presume) you just get the...
No answers here, just some observations. Your flow temperature is reasonably high, which maybe indicates slightly smallish radiators and would give ...
I’ve got: 5kW heat pump, but only 2.5kW heat loss, so max consumption of 2.5/3=0.75kW from the heat pump. 9.5kWh battery. Solar doesn’t produce a...
I don’t think there is a problem. Given a water saving shower head and a 5 minute shower, that’s: 4l/min x 5min x 5 = 100l. So even the smallest 150...
just some comments by a door blower tester that they have never seen a higher value than 1 and the fact that in my calculations I could only get close...
I agree, it is weird that we are suppose to trust this whatiffery, but not our own usage data. after all, as was stated above, assuming a linear relat...
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RE: Solar Thermal DHW and ASHP
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By Judith , 5 hours ago
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
I think you’ll find it depends on the room heat loss. A...
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DESNZ doing a survey which asks the right questions!
DESNZ have engaged ICF to do a survey of people who hav...
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RE: Can you help with our research: solar panels, EV chargers, home batteries, heat pumps?
Just done your survey!
By Judith , 6 hours ago
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RE: Vaillant aroTherm Plus 10kW thoughts?
@realevil Fwiw I have the 7kW model with which I'm, ver...
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
@grahamf you appear to value your recirculating loop de...
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RE: Failing heat pump system - seeking thoughts on a rebuild
@cleardene-ashp just thinking about your issues here. Y...
By Judith , 8 hours ago
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RE: Midea ASHP – how to set weather compensation
@cathoderay OK let's wait and see, it sounds an interes...
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RE: What is the Heat Geek Guarantee?
@judith, I’m with you on Heat Geek, but there really do...
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RE: Electricity price predictions
Community energy installations are a great idea, but th...
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Inventor (Midea) Heat Pump short cycling advice
Hello, I have a Inventor (Midea) 8kW with a 800meters Φ...
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
Ooh, heat pumps in neon blue wrap 🤣 🤣 &...
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@profzarkov Good to know in case it ever happens to me...
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RE: Are Octopuses Slowing Consumer Adoption of Heat Pumps?
I mean, is this surprising? The local installers in my ...
By Alex , 3 days ago
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@old_scientist sorry, I should have made it clear that ...
By GrahamF , 3 days ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
@thundermink can you provide photos to illustrate your ...
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RE: Boiling Mad: Exposing Radiatorgate
Hi @Rob, I’d be more than happy to contribute. I have ...
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RE: Solar Power Output – Let’s Compare Generation Figures
@andris a great year - very happy with our system
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