Ian Stirling wrote:
PeterL wrote:
Does anyone have any views or experience, please? Good or bad.

A contrary view.
For the money you will spend on a ground source heatpump, you can
often vastly improve the thermal efficiency of the building
instead.

10K may go a long way to properly insulating a solid wall
property, for example.

Very true. BUT we assume that's already been done.


This means that in 10 years, you don't need to spend another
5-10K replacing the heatpump.


Heatpump itself not expensive. Its the rest...

In some cases, combined with storage heaters, the running costs
can be drastically cheaper than with a ground or air source
heatpump.

Another fun thing to think about is a teeny groundsource
heatpump that uses cheap-rate electricity to heat a thermal
store for a well insulated property.

You would still be surprised..how much heat that takes.

It IS now cheaper to heat with a heatpump, running cost wise, no matter
what the level: the problem is the installation and ancillary costs for
houses simply not designed for it, are very large.