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bontwoody
bontwoody
@bontwoody
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Noble Member
Joined: Mar 5, 2022
Last seen: Sep 17, 2025
Topics: 30 / Replies: 828
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RE: Fossil Fuel Fired Heating v Heat Pump?

Some fond memories there Toodles! 🙂

1 year ago
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RE: Vaillant Arotherm Settings for New Installation

@drew-pa Ah thanks. Good to know I dont have a misconception about it. On Energy Stats Uk Mick Wall gives a rough way of setting the correct curve. ...

1 year ago
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RE: Vaillant Arotherm Settings for New Installation

@drew-pa Thanks Drew that isn’t how I understand it. To me the curve sets the “gradient” on the weather compensation chart. The desired room temp...

1 year ago
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RE: Microbore Central Heating Plumbing, will it be a barrier / pain?

The microbore pipes might not be an immediate no-no, but some investigation would be needed as to whether they would work along with the radiators. He...

1 year ago
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RE: Vaillant Arotherm Settings for New Installation

@drew-pa It is set on pure weather compensation at internal temperature of 22C. The unit runs 24hrs with a setback overnight. Theoretically that sh...

1 year ago
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RE: Vaillant Arotherm Settings for New Installation

@hcas Hi , I appreciate the problems with comparing different systems, but this installation is relatively simple with no buffer/LLH. The estimated SC...

1 year ago
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RE: Vaillant Arotherm Settings for New Installation

@hcas Ive opened all but the bedroom radiator valves, which they want to be cooler. Im running my Samsung at about 42C flow at the moment and still...

1 year ago
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RE: Vaillant Arotherm Settings for New Installation

@drew-pa Ive attached the performance estimate Drew, that is all I have. There is no UFH. Also attached are some images of the installation. Other t...

1 year ago
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RE: Vaillant Arotherm Settings for New Installation

Hi Drew. Thanks for the reply. I’ll post his installation details asap. The work is neatly done and all the radiators were changed as per the insta...

1 year ago
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RE: Vaillant Arotherm Settings for New Installation

Just to say, that we have managed to set up the unit now. 22C target indoor temperature and a heat curve of 0.6. High internal temp but the wife is a ...

1 year ago
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RE: Issues with installer's use of pipework for Vaillant Arotherm ASHP

@jwilliams89 Your calculations look good at a glance. With respect to the internal pipe strengtheners, I have tended to use the hep2o ones which are s...

1 year ago
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