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Is my heat pump correctly sized?

Saz · 2021-10-22T21:51:37Z

Some weeks ago I had a new Vaillant Arotherm plus installed. I have had endless issues since with leaks etc. and the immersion appears to be coming on alongside the heat pump in normal use and my bills are going to be ridiculous at this rate. I'm wondering also if my heat pump is undersized for my house, it is a 3 bedroomed 8 year old house and it is a 5kW. If it was, would this mean higher bills?

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Air Source Heat Pumps (ASHPs)

Last Post by Mars 5 years ago

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Mars

(@editor)

Illustrious Member Admin

Joined: 6 years ago

Posts: 4809

27/10/2021 9:33 pm

@helensq, welcome to the forums. The reliability of the system comes down to how well it’s designed and installed.

Heat pumps do work. But they must be sized and installed correctly. I do think they require tinkering and tweaking to get them working efficiently, but the degree of tinkering will vary from person to person.

The biggest issue facing heat pumps for the foreseeable future will be sky high electricity tariffs. This is going to make pumps very expensive to run compared to gas and oil.

Leaks are not an issue reserved for heat pumps. Our leak that we dealt with recently stemmed from a vent on our back up oil boiler.

If you specific questions, I’d be happy to address and answer those.

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