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webcmg

@webcmg

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Joined: Jan 5, 2022
Last seen: Aug 24, 2025

Topics: 3 / Replies: 107

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RE: High air source heat pump running costs – Vaillant AroTherm Plus

@colin @derek-m Thanks, our usage is roughly inline with your values so I'm happier now. I definitely want to investigate pv solar and batteries. ...

3 years ago

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Air Source Heat Pumps (ASHPs)

RE: High air source heat pump running costs – Vaillant AroTherm Plus

@aceshigh @colin I isolated the secondary return at the weekend and today the DHW has not had to recharge following yesterday's anti legionnela cycle....

3 years ago

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Air Source Heat Pumps (ASHPs)

RE: High air source heat pump running costs – Vaillant AroTherm Plus

@aceshigh thanks, that is helpful to know. Are there likely to be any risks associated with this? @colin I have a small form factor PC on the way to...

3 years ago

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Air Source Heat Pumps (ASHPs)

RE: High air source heat pump running costs – Vaillant AroTherm Plus

Thanks, will have a go at getting this set up. Hope it works with the installation here.

3 years ago

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Air Source Heat Pumps (ASHPs)

RE: High air source heat pump running costs – Vaillant AroTherm Plus

@colin thanks, what are you using to monitor the temp of the tank and produce the graph?

3 years ago

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Air Source Heat Pumps (ASHPs)

RE: High air source heat pump running costs – Vaillant AroTherm Plus

@colin one thing I have noticed is that we have a secondary return on the hot water circuit. It has a timer which activates a pump to circulate the wa...

3 years ago

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Air Source Heat Pumps (ASHPs)

RE: High air source heat pump running costs – Vaillant AroTherm Plus

Interesting, I'd like to get to the bottom of the efficency because we're seeing high usage for DHW and heating which is why I started this thread. I ...

3 years ago

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Air Source Heat Pumps (ASHPs)

RE: Vaillant Arotherm Plus issues - circulation, efficiency and performance

@saz any updates? We have the same HP and have similar issues with efficiency and comfort.

3 years ago

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Air Source Heat Pumps (ASHPs)

RE: High air source heat pump running costs – Vaillant AroTherm Plus

@colin Hi Colin, we've certainly reduced our Kwh usage for the hot water based on the settings. We now currently use between 3-4 Kwh per day to heat t...

3 years ago

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Air Source Heat Pumps (ASHPs)

RE: High air source heat pump running costs – Vaillant AroTherm Plus

Does that cycle use the immersion heater?

3 years ago

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Air Source Heat Pumps (ASHPs)

RE: High air source heat pump running costs – Vaillant AroTherm Plus

A couple of pictures, the first is the inside of the heat exchanger box. The polystyrene seems to insulate well and is a tight fit. The second ...

3 years ago

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