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Colin
@colin
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Joined: Oct 4, 2021
Last seen: Apr 22, 2026
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Topics: 0 / Replies: 56
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RE: High air source heat pump running costs – Vaillant AroTherm Plus

@webcmg We don't have showers at a regular time each day, also we have the same style showers as you. Our pump is pointing in an east-north-east direc...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: High air source heat pump running costs – Vaillant AroTherm Plus

@webcmg Glad to help. If you only charge up the cylinder once at night and you might be able to save a little more. Something doesn't seem quite right...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: High air source heat pump running costs – Vaillant AroTherm Plus

@webcmg Mine was set to 10, I think it's the threshold before it starts charging the cylinder again assuming it's within an enabled time period. I low...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: High air source heat pump running costs – Vaillant AroTherm Plus

@webcmg Yes, then it loses 0.5º C every few hours. The graph shows Thur (Anti-Legionella Day), Friday and Sat night.

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: High air source heat pump running costs – Vaillant AroTherm Plus

Hi, no problem. I've attached the monthly DHW electricity consumption and yield as well to help you compare.

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: High air source heat pump running costs – Vaillant AroTherm Plus

@webcmg We're on Octopus Go Faster so we have the DHW set to come on during part of the cheapest period when it's 5.5p per kwh so essentially we 'char...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: High air source heat pump running costs – Vaillant AroTherm Plus

@webcmg We're averaging 2kwh consumed per day with DHW set to 46°C and a 300L Vaillant tank, which lasts 2 adults & 2 small kids all day no proble...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: 12kW Vaillant aroTHERM plus in the Scottish Borders: please help cure my COP envy

@jonathans Hi Jonathan, I've also got an Arotherm Plus 12kw, Sensocomfort, in a windy, exposed part of Scotland and use Home Assistant to monitor. I'v...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: High air source heat pump running costs – Vaillant AroTherm Plus

@webcmg Do you have any motorised valves like this leading to the radiators and do those pipes feel warm or cold?

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: High air source heat pump running costs – Vaillant AroTherm Plus

@webcmg I have multiple Zigbee temp sensors to monitor temperature throughout the house, I stuck one on a radiator and also use an electricity smart m...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: High air source heat pump running costs – Vaillant AroTherm Plus

🤣Yep, I've been out of bed to fine tune ours regularly for a few months. The Mrs is happier at least now she's warmer. Adaptive Heat Curve should be...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: High air source heat pump running costs – Vaillant AroTherm Plus

@webcmg Good luck! Bear in mind it'll take a while heat up the screed etc. I've got the Room temp Mod set to inactive so it solely relies on outdoor t...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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