
Last seen: Sep 10, 2025
I certainly welcome any such attempt! I think it may be considered an interesting case, often it is the anomalies that lead to better understanding, s...
The heat energy used (energy in) is measured, and accurately (meter on the oil delivery tanker, external dedicated kWh meter for the heat pump). The h...
Try the Met Office WOW website (<=link). You can search for a weather observation website near you and download the data (you have to register but ...
I don't think so. Consider the facts I presented (measured use), and the assumptions I made (efficiencies), and while the latter are only estimates, t...
I raised this paradox (the 'disappearing COP') in another thread a while back and didn't really get a satisfactory answer. The best I got was somethin...
I still think the biggest obstacle is price, both installation and running costs. Even with the BUS grant, a heat pump is going to cost a lot more tha...
Thinking about it, I am not sure that would work. If you had been logged out, but didn't know you had been (as happened to me), then clicking 'Save Dr...
Yes, there is that, and there is also Crtl + A > Ctrl + C before clicking add reply, but both rely on remembering to use them. The problem is that ...
I couldn't agree more. I can think of so many examples, often from the sailing world where the ancient and modern are so very different (new classic b...
@editor - I have just lost a reply I was going to post. I think what happened is I was logged in when I started the reply (and so had access to the 'L...
That's encouraging (the beginning to come round bit). I will put some thought into how we might convincingly show that the current MO won't work. It m...
I got an unsolicited email from my energy supplier (EDF) today: "Looking to transform your home heating? It's time to say hello to heat pumps...". Ano...
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RE: Who’s Caved and Switched the Heating On Already?
This is, as I see it, the main downside to WC. It's pur...
By Old_Scientist , 18 minutes ago
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RE: Midea ASHP – how to set weather compensation
The midea has a number of pre programmed WC curves (wit...
By benson , 19 minutes ago
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RE: COP is not the only measure of efficiency
If that's the case then you are right to be sceptical, ...
By JamesPa , 2 hours ago
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Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
We’re pleased to announce that Havenwise are now joinin...
By Mars , 3 hours ago
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RE: Renewables & Heat Pumps in the News
To unpack this a little.... 1) how many of us in this...
By Lucia , 4 hours ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@ashp-bobba Well done for stepping in where most would ...
By JamesPa , 6 hours ago
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RE: Vaillant aroTherm Plus 10kW thoughts?
@realevil the fans and fan speed / coil size (height, w...
By ASHP-BOBBA , 16 hours ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
@morgan this can just be done by your sepecilist when t...
By ASHP-BOBBA , 16 hours ago
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RE: Buffers, hot water and cooling
I agree it seems like a lot of work particularly as its...
By JamesPa , 17 hours ago
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RE: Anyone still weathering it out with Agile?
@toodles I guess it all comes down to import averages. ...
By Tim441 , 20 hours ago
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RE: 300 Liter Tank - Do I have to heat it all?
The size of DHW tank affects the anti-legionella cycle....
By Transparent , 21 hours ago
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
@scalextrix Name plate capacity
By HCas , 1 day ago
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RE: Solar Thermal DHW and ASHP
I was originally contemplating a solar thermal installa...
By jamespetts , 1 day ago
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RE: Solar Power Output – Let’s Compare Generation Figures
My system installed in July 2024 has produced 6.4mWh in...
By jamespetts , 1 day ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
@judith thanks for your suggestions. Starting from col...
By GrahamF , 2 days ago
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RE: Inventor (Midea) Heat Pump short cycling advice
I switched to "fan coil mode" to be able to set water t...
By immunity , 2 days ago
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RE: DESNZ doing a survey which asks the right questions!
Without a survey their only source of data is probably ...
By JamesPa , 2 days ago
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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 , 3 days ago
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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 , 3 days ago