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bontwoody
bontwoody
@bontwoody
Contributor
Noble Member
Joined: Mar 5, 2022
Last seen: Oct 6, 2026
Profile Activity
Topics: 39 / Replies: 1022
AllTopicsReplies
Reply
RE: Say hello and introduce yourself

I think this is a good way to do our bit for the planet, everyone we persuade is another convert. I was planning to reach out on social media to anyon...

3 years ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Real world connection to a heat pump over modbus

This will be very useful thanks, Its on my list to connect my Samsung up so I can adjust it programatically.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Areona 17kw questions/concerns

Hi Daniel, I find Openenergymonitor very good although you would need to install a heat meter into your HP circuit. You can see the types of output yo...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Which is more efficient Solar Diverter to Immersion/Hot water cylinder or Combi Direct Hot water on demand?

@DoubleSpeed Im assuming you are talking about a gas combi boiler? When you say efficient do you mean most cost effective? The greenest option is ...

3 years ago
Forum
Solar Thermal & Power Diverters
Reply
RE: ASPH Sizing Confusion

@iancalderbank Realised that I would have to get into the control panel right after posting 🙂 I remembered that when I changed pumps, I had to alter...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASPH Sizing Confusion

@fazel "Can you set the flow rate to stay high/fixed to see what difference it makes? Even if you will see a lower dT." I think its possible, but ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASPH Sizing Confusion

There sure are a lot of variables to consider here! 🙂

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASPH Sizing Confusion

@fazel Agreed, but the highest COPs are clustered around the 9kW load so shouldnt we aim for the mode output to be in that region?

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASPH Sizing Confusion

@fazel Ah, I see, that would account for what appears to be a smaller delta T at the lower temperature. Does the increase in off cycles negate the p...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASPH Sizing Confusion

@Kev_M I was thinking about the right hand graph again last night Kev. My understanding of it is that the different plots for A12, A7, A2 and A-7 ar...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASPH Sizing Confusion

@Fazel @Derek_M Well here is some interesting behaviour last night. I lowered the flow temperature at the top end of my WC curve by 2 degrees bringi...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASPH Sizing Confusion

@derek-m Thanks, Im going to try some of these ideas now, however I noticed on Glyn Hudsons second video that his heatpump became unrelaible at abot 3...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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