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iancalderbank
@iancalderbank
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Noble Member
Joined: Oct 17, 2022
Last seen: Jan 14, 2025
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Topics: 0 / Replies: 643
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RE: Solar thermal with combi boiler

@z8lccda if you're already favouring PV for your roof space because of wanting to go electric car and batteries (a good plan - having PV optimises bot...

2 years ago
Forum
Solar Thermal & Power Diverters
Reply
RE: A Beginner's Guide to Heat Pump Monitoring Reloaded (v2)

@cathoderay I believe you need to look at it differently : for a flow rate of 1.5m/H, the system (i.e. the pump plus the head loss due to the HP itsel...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A Beginner's Guide to Heat Pump Monitoring Reloaded (v2)

@mphb thanks - do you have a link to the latest manual? also if the later pump is higher efficiency but still fixed speed its still the same conversat...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A Beginner's Guide to Heat Pump Monitoring Reloaded (v2)

@cathoderay there's some good stuff in here as far as I can tell from reading that, its a fixed speed pump for the primary side, locate inside the o...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A Beginner's Guide to Heat Pump Monitoring Reloaded (v2)

@cathoderay @derek-m so, I've changed horses with regard to the COP and performance aspects. Using homeassistant I'm now pushing everything that I g...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A Beginner's Guide to Heat Pump Monitoring Reloaded (v2)

I think we probably do: Energy goes -ve several times. This was calculated using 30second DT x 30 second flow rate. There are times when the compr...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A Beginner's Guide to Heat Pump Monitoring Reloaded (v2)

@cathoderay can we please just agree to disagree over HA? I was purely responding to @bontwoody query regarding future use of modbus and previous use...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A Beginner's Guide to Heat Pump Monitoring Reloaded (v2)

@bontwoody I put in the samsung modbus on day 1. my objective is to be able to take control of LWT, once I've got the system where I want it - the mo...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: An inspiring DIY ASHP installation

@bontwoody - replying to your question on the article - its easier to reply in the forum. 28mm plastic pipe inserts have a bore of about 21mm - so...

2 years ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Numerous issues – 11kW Daikin Altherma 3

@marzipan71 yep, also allows you to run the cylinder at a much higher temperature if you want without risk of scalding. for example if you have spare ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Numerous issues – 11kW Daikin Altherma 3

@marzipan71 you want something like this (I have exactly this one on my cylinder output). typically when called a "tempering valve". these are de...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump and a solar diverter. Is it logical?

@davesoa they do all work nicely together. example: today, my powerwall charged to 100% from grid by 0530 (intelligent octopus end time). the heat p...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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