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iancalderbank
@iancalderbank
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Noble Member
Joined: Oct 17, 2022
Last seen: Jan 14, 2025
Profile Activity
Topics: 0 / Replies: 643
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Reply
RE: Heat pumps don't work: debunking myths & misconceptions

@editor my point is really that you said you used Xkwh - but that was the whole house - you have no separation for heat. without that its meaningless ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pumps don't work: debunking myths & misconceptions

do you monitor your COP or heat energy output ? or meter the HP separately? I think you need to have that to be able to talk numbers. I know you are...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Data requested please

all that data you ask for is in the feeds that are uploaded to heatpumpmonitor.org by multiple systems. if you were to post this on openenergymonito...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installation queries for Grant Aerona

WC and flow temps - main thing is that they set WC , but also give you instructions on how to change it. likely scenario is that if they set it at all...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grundfos Secondary Pump Flow Rate

@dunlorn yeah it should be perfectly possible to treat them just as independent heat sources, decouple the master-slave, if send them both a call for ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Say hello and introduce yourself

IMO the only vendor independent system of monitoring is to put in a heat metering setup and link it to openenergymonitor. I've nothing against modbu...

2 years ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Grundfos Secondary Pump Flow Rate

@dunlorn I was just pondering a possible idea for you: you could take control of each heat pump individually via modbus, run them as 2 separate rather...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grundfos Secondary Pump Flow Rate

@dunlorn would it be feasible to individually control your two units rather than rely on samsung's master slave behaviour?

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grundfos Secondary Pump Flow Rate

@dunlorn FWIW, I was running at about 9kw also on saturday (-2C here all day), flow rate of 28l/min , that kept us at 21C inside . pretty sure that i...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grundfos Secondary Pump Flow Rate

static head isn't relevant, the water goes round in a circle, what goes up must come down. What matters is the resistance to dynamic flow. Given that...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Icy cold weather, weather compensation and consumption

mine for the 29th, max 3C day then -2 at night. 41kwh of electricity for 110kwh of heating. short-term COP is nearly 3 when it stable running in heati...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump monitoring - Open Source.

a few of us here are on that monitoring platform. I'm the "milton keynes samsung 16kw" one. direct link to mine's in my sig.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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