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JohnR
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JohnR
@johnr
Member
Trusted Member
328 kWhs
Joined: Nov 25, 2024
Last seen: Jan 14, 2025
Profile Activity
Topics: 0 / Replies: 38
AllTopicsReplies
Reply
RE: Solar Performance

I normally see a steady increase in the sunny day peaks as January progresses. There's a link to my data below but I would note that my winter solar g...

4 days ago
Forum
Solar Photovoltaic (PV)
Reply
RE: R290 install location and future of R32

Propane is denser than airso any leak is likely to spread laterally and not vertically. However, something else to watch out for is any airbricks in...

5 days ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Can you work an ASHP too hard?

The lower you can get the flow temperature the better. If need be you can upgrade some of the emitters after getting some experience. Could you inst...

5 days ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Cost to have Gas removed

Octopus charged me nothing to remove my gas meter after my heat pump was installed and the boiler removed. The person who removed the meter said that ...

5 days ago
Forum
Your Home
Reply
RE: Yet another government reverse ferret - flakey grids and property lobbies

There should be a requirement for new build housing to be heat pump ready even if they are sold with gas combi boilers. By "heat pump ready" I mean pr...

6 days ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: Battery...Full house back up

One detail that you may want to consider is the warranty on the battery. I recall that the warranty (minimum 70% storage capacity aftre 10 years) for ...

2 weeks ago
Forum
Energy Storage
Reply
RE: ASHP and how it should run and potential kw consumption?

Vaillant's specs indicate an operating pressure between 0.5 and 2.5 bar for the 10kW Arotherm PlusInconsistently, the specs for my 7kW unit say 0.5 to...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Double heat pump for DHW?

Persuading a couple of people to have showers in the evening instead of the morning would reduce the problem. A quick face wash in the morning is quic...

2 weeks ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: ASHP and how it should run and potential kw consumption?

I've got a 7kW Arotherm Plus which is currently using 1133W with a 31C flow temp and -2C outside. This is with a 0.5 heat curve setting and target roo...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Trying to work out COP

If you are in the Algarve (as your forum name suggests) then the daily temperature range isn't very big. Heating the DHW to 50C with an outside temper...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Trying to work out COP

No. COP relates to the efficiency of energy out of the heat pump vs energy in. Flow temperature is a key factor as less work is needed to raise the wa...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New 5kW Samsung Gen6 heat pump owner with loads of questions

This is what I've assumed for my Vaillant heat pump and it's definitely the basis of their efficiency number. However, it's got me thinking. Does all ...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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