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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: Sep 10, 2025
Profile Activity
Topics: 17 / Replies: 2128
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RE: What do we need to know before installing a heat pump?

First, quiescent use: taking readings from the external dedicated kWh meter, which reads to one decimal place, the heat pump used 0.2kWh over the 12 h...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: What do we need to know before installing a heat pump?

I don't. It also depends on whether system means entire system (primary and secondary circuits combined) or just the primary circuit, but then that do...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: What do we need to know before installing a heat pump?

Quick remark: yes it is, but I'm still trying to get my head round what the detrimental effects of a PHE are. I've tried seeing them as a sort of obst...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: What do we need to know before installing a heat pump?

@jamespa - I wrote that before I read your rephrasing the question suggestion. It was my way of phrasing it as an anomaly/paradox/whatever you want to...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: What do we need to know before installing a heat pump?

I really should have written up my method notes better at the time, but what I think I can say is this. I based the oil calculation on the fill data f...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: What do we need to know before installing a heat pump?

No, you didn't misread, that is correct. Interestingly, the Midea kWh out is probably not dissimilar. The current lifetime energy out figure is 35,600...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: What do we need to know before installing a heat pump?

Thanks for your pertinent questions. Answers, as best I can: It is outside, but the external pipe runs are short, perhaps 6ft flow and 6ft return an...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: What do we need to know before installing a heat pump?

I agree that is what the Engineering databook shows (page 45, 9050W to confirm we're on the same page) but I am not sure what the max/norm/min rows re...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: What do we need to know before installing a heat pump?

Here's a rather ugly chart from the data logger's software showing the kitchen room temp during the overnight setback to 16 degrees on the room stat 2...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: What do we need to know before installing a heat pump?

Thank you all very much for your comments which I will reply to shortly. In the mean time, here is some data from the recent power cut, which by coinc...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: What do we need to know before installing a heat pump?

You're right, I should have labelled the axis, I hoped the title was enough, and it allowed a slightly larger plot area. Yes, it is kWh/week. I w...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: What do we need to know before installing a heat pump?

I like to imagine I get the distinction most of the time, but the use of power (kW) for heat loss and energy (kWh) for energy use does leave me easily...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
Page 112 / 179
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