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JulianC
JulianC
@julianc
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Honorable Member
Joined: Mar 8, 2021
Last seen: Jan 4, 2026
Profile Activity
Topics: 6 / Replies: 330
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Reply
RE: Air source heat pump performance

I agree with a lot of the logic and good information given by Derek. But I can’t agree that H2 is the general answer. Very inefficient production proc...

5 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Air source heat pump performance

Dan i haven’t changed my Octopus DD yet. We were on £45/m for cooking, dishwasher, EVs, etc before. Plus the oil delivery once per year. I’m guessin...

5 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Air source heat pump performance

Dan T, you raise a good point about affordability. I think there is an issue of taxes applied to electric compared to gas. Gas has lower taxes. Ideall...

5 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Air source heat pump performance

Sam I am sorry the ASHP did not work out for you. I’m only 3 weeks into mine, so don’t have any of your experience. But as Phil says, gas boilers wi...

5 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Potential questions to ask installers.

Thanks Derek, always reliable information from you. So a hydro box is different from a split system. I’ve a split Daikin system with the fan, heat exc...

5 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: ASHP retrofit to 1970s semi

Hi Kuba I think it’s all about getting several quotes and approaches. 8mm pipes are small to the radiators, but do they run all the way back to the ...

5 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Air source heat pump performance

Wow Jet, that is a large kW usage. A few questions as you property is a similar size to mine. And I have a HT ASHP. What was the original MCS heat req...

5 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Potential questions to ask installers.

Phil, by small bore pipes to the radiators, in my case I mean 10mm. We have large “mains” pipes running in the loft that are 35mm or 28mm with 10mm dr...

5 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Potential questions to ask installers.

Evening Phil. Get several quotes. They will need to do a heat loss and heat demand calculation. Your dimensions and oil usage were similar to my bunga...

5 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Air source heat pump performance

DanT - we have 4kW of solar PV - we generate about 3700kWh per year - as you say much more in the summer. My system is 9 years old (see detailed desc...

5 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Say hello and introduce yourself

Welcome Phil. Top tip is to speak to several ASHP installers to get a variety of views. Unless it’s the size of Blenheim Place, a 2005 built home shou...

5 years ago
Forum
Introductions, Forum Rules & Updates
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RE: Air source heat pump performance

DanT you definitely need to get a diverter. You look like a “data man”, so perhaps the Solic is not for you, but I can certainly recommend it.

5 years ago
Forum
Air Source Heat Pumps (ASHPs)
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