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Adrian
@adrian
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Joined: Oct 15, 2024
Last seen: Dec 13, 2025
Profile Activity
Topics: 1 / Replies: 32
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RE: Setback savings - fact or fiction?

Good old physics tells us that it is impossible to not have to put extra energy in to get the temperature up without putting extra energy in. I havent...

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

@cathoderay the principle is as probably described somewhere above, that the energy usage is directly proportional to the deltaT between outside and i...

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

interestingly that’s not what I see, here is the same from my calculations on your data, there is clearly extra energy being put in:

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

@cathoderay i’m getting different results, using this method: calculate the average kWh/inside outside deltaT Kelvin (sum(kWh in)/sum(deltaT), that ...

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant water pressure gauge vs Analogue gauge

As I understand it, it depends where the gauges are relative to the pump and blockage. The gauge in the heat pump is before the pump, so where it is l...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant water pressure gauge vs Analogue gauge

I think that might be an indication of some blockage in the system. I had that difference and lower than the standard vaillant 14 l/min flow rate, unt...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Plug and play solar. Thoughts?

I’m very interested in these for my dad who lives in Germany. They have updated the regs such that you now can attach 200wp of panels, I.e. four panel...

10 months ago
Forum
Solar Photovoltaic (PV)
Reply
RE: What is the best strategy for operating a very oversized heat pump?

One thought is that the advantage of an oversized system is that the radiators are hopefully also oversized, so you can run it at a lower temperature....

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Who's your electricity provider and what's your tariff?

Looks like you can get the go (non intelligent) without an ev, just don’t ask :). I pressed the button and got the email to agree the conditions. If I...

10 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
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RE: Who's your electricity provider and what's your tariff?

I’m with octopus cozy, with my battery size it means that all by usage comes from the three cheap periods. I’m looking to switch to go in April, as t...

10 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?

@terry1812 sorry didn’t mean to offend. That’s lucky their policy did overlap with your requirement. For me there was no need for repipe (22 & 15m...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?

@terry1812 oh I dodged a bullet there! I had the BG surveyor come round and I started with saying that their policy is to replace all piping! I send ...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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