Can anyone with a ground array style Ground Source Heat Pump comment on the long term reliability of the kit please?
I'm crunching the numbers for a single phase domestic installation here (7 years of RHI payments) and wondering how often I should plan on replacing pumps etc.
Also, what is the life span of the plastics ground array pipework? It is fairly thin walled for good heat transfer I believe and there's a good bit of digging to put it in so I'm keen to know in advance!
Thanks a lot.
I'm crunching the numbers for a single phase domestic installation here (7 years of RHI payments) and wondering how often I should plan on replacing pumps etc.
Also, what is the life span of the plastics ground array pipework? It is fairly thin walled for good heat transfer I believe and there's a good bit of digging to put it in so I'm keen to know in advance!
Thanks a lot.
