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robl
@robl
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Honorable Member
Joined: Mar 23, 2022
Last seen: Jul 30, 2025
Profile Activity
Topics: 1 / Replies: 203
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RE: COP for DHW using a heat pump

We heat our 10yr old solar tank with a gshp. It used to just heat the top coil with up to 55C flow, getting the water tank to ‘maybe’ 43C. In the No...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: EV tariffs - too good to be true?

I think as gas and oil boilers get phased out, low install cost heat storage solutions will seem too attractive on Octopus go - so I agree, Octopus wo...

2 years ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: New member - advice sought

@jvs197 I suggest that you experiment with your present gas system, so that you can determine how well an ashp could work. It’s what I did before i...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New member - advice sought

We swapped to a HP 2 years ago, after running a regular gas boiler for many years. We have smart meters, so could correlate daily gas kWh with the out...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP Consumption

s The rule of thumb I’ve seen has been total yearly kWh/2000 gives the peak power in kW. It works for us- but would give 36000/2000=18kW. Are you ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Crossed flow and return

Yes, probably it does matter, depending on the rest of your system. If you have a heat exchanger, it's likely using it the wrong way around, which wi...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is your heat pump insured?

There are so many insurance options these days, which I believe most people would be better off without. Bike, phone, washing m/c, heating system, pe...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Stop ASHPs being stolen

Once you've cut out the compressor, will there be swarf in the cut pipes? If it's stored badly, will the sump oil get water in it which turns it to a...

2 years ago
Forum
Buy & Sell
Reply
RE: Best practice during summer?

Correct me if I'm wrong, but is heatmiser an on/off thermostat type controller? Can you describe your GSHP a bit more: Make / model /power? Is it...

2 years ago
Forum
Grounds Source Heat Pump (GSHPs)
Reply
RE: What do we need to know before installing a heat pump?

I can't think of a single reason why you would want to operate a counterflow heat exchanger the wrong way around, the inefficient parallel way, in a h...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: A beginner's journey into DIY home energy storage - no solar!

@transparent I'm "listening" eagerly to this thread too! We have old 4kWp FIT PV with an MCS form, and I now have dno approval for an additional, ...

2 years ago
Forum
Energy Storage
Reply
RE: What do we need to know before installing a heat pump?

@cathoderay Apols for badgering on this topic about other controls, but do you really have just have weather compensation only running ? As I under...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
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