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Johnmo
@johnmo
Member
Noble Member
Joined: Jan 25, 2023
Last seen: May 25, 2025
Profile Activity
Topics: 2 / Replies: 543
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Reply
RE: Will heat pump heat hot water without increasing the temp in my home?

Think Cosy tariff is a name that is very misleading, it should be called battery tariff. Heat pump run best on a low and slow setting. Run on weather ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump monitoring - what are you using?

Or just accept sometimes you will use higher rate electric. You should still come out way cheaper than standard rate electric.

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Energy tariffs and consumption fiddling to make my heat pump more cost efficient.

Yes. The ideal is you have flow temps just warm enough to keep the house at an even temp, via a compensation curve. A set back sounds good, but to get...

9 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: Energy Tariffs and consumption fiddling

I would say it's better to just leave it running. Open all the thermostats to max settings, get your weather compensation curve fine tuned to get a n...

9 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: COP or Cost Per kWh

Couldn't agree more, but doesn't tell the whole story, so you have to use all information not just CoP. Two images over a 6.5 hr period so DHW d...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: COP or Cost Per kWh

Not a fan of the league tables as you are comparing apples with oranges. Our heating needs are very different from a house down the road, let alone ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: VDI 2035 heating water specification

Your water looks to in a similar place to mine, after I treated it. Certainly VDI mandate not to use chemicals. Think the trouble with chemicals is wh...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump monitoring - what are you using?

Finding small changes have a decent impact on run time and overall efficiency of the system as a whole. Just a matter of finding something close to th...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Powerwall 3 - is it worth the outlay?

Little confused. ECO4 - It primarily targets low-income and vulnerable households, people on benefits, but you have disposable income to justify £7-...

9 months ago
Forum
Energy Storage
Reply
RE: Heat pump monitoring - what are you using?

Got the cycles to about 15 min on and 30 to 40 mins off. But although giving a decent CoP the energy used was high, because I believe the quality of h...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Low shower pressure after ASHP retrofit

Most mixers uses a balanced flow i.e. the flow pressure from hot and cold is the same. This is how it is normally achieved via the combined valve at t...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump monitoring - what are you using?

The App gives you the CoP data, you can see instantaneously CoP, it uses a CT clamp on the 3 port valve to detect when it's seeing DHW heating and it ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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