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newhouse87
@newhouse87
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Joined: Mar 15, 2023
Last seen: Aug 16, 2025
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Topics: 1 / Replies: 230
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RE: Icy cold weather, weather compensation and consumption

Is the BUH used during defrost cycles, had 7kw pulling yesterday morning at 7am.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

Speaking of defrosts. Anybody know how check defrost settings on daikin altherma low temp split 2. 1 frost stat left setting from factory incorrectly ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Really weird behaviour, random heat spikes with Heatmiser!

@derek-m unfortunately must be defrosting twice an hour. Crazy to go from2.5 to 5kw per hour an hour apart.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Really weird behaviour, random heat spikes with Heatmiser!

why would mvhr cause my usage to double? See the chart when no heating running before 12pm. My usage less than0.3kw per hour, thats with mvhr running ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Really weird behaviour, random heat spikes with Heatmiser!

Same as me. heatpump running and mvhr. Derek have to disagee no way was it mvhr causing this. I have meter for heat pump. Must have been defrost. Temp...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Really weird behaviour, random heat spikes with Heatmiser!

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

Currently the warmest room the kitchen has been getting to 22/23, others 21, i have just been altering length of time heating is on for, probably 1pm-...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Do setbacks save energy without compromising comfort?

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

@cathoderay My heat pump is running for 9hours straight and i can see by compressor starts that at below9-10deg, i have zero cycling. could be just mi...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

@jamespa I take it you mean my house will be yoyoing in a sense with regard IAT so by having setback. My counter point is it doesn't affect our curren...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

Fair enough, but i really dont get how running 24hours could not be more expensive, generally up at 2kwh/hr usage when running at fixed@32 full flow. ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Do setbacks save energy without compromising comfort?

Last night was first below freezing temps. Heating went off at 9pm, kitchen was21.5 and bedroom21, both lost 1 degree overnight. I think thats reasona...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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