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A Customer's Lessons Learnt from a Heat Pump Installation in a Large House

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(@scalextrix)
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Joined: 11 months ago
Posts: 56
 

@tim441 it's a Vaillant, I think the controls are probably not the best, but also not the worst.


   
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(@jamespa)
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Joined: 2 years ago
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Posted by: @scalextrix

@tim441 it's a Vaillant, I think the controls are probably not the best, but also not the worst.

Based on owning a Vaillant and reading the manuals of others, I would say Vaillant are amongst the best controls.

The fundamental feature they have, shared with only a few others, is that changing the set temperature, whether manually or in a time program, shifts the WC curve.  This means that if the average person does what they are likely to do the system remains efficient.   The Ideal R32 models and oddly at least some Fujitsu's work very similarly, not sure which others do but I know plenty that don't.  Others work such that you can only program setbacks  (or set forwards) by bouncing off an on/off sensor/thermostat the rest of the time, or using some home grown kludge.

On top of this feature Vaillant controls have plenty of additional functionality.

For my money this, and the simple and natural way you program DHW and space heating, set the Vaillant apart from many other systems and are a good reason to recommend them.  I wish I had a comprehensive list of heat pumps with controls that work in a similar way.

 

This post was modified 1 hour ago 3 times by JamesPa

4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.


   
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