On 15/09/2019 09:11, The Natural Philosopher wrote:
On 15/09/2019 08:09, Mike Halmarack wrote:


You need somethong with more thermal capacity than that, but you cant
fit it in the small flats.

Air source heatpump might be a better bet


I was going to say that. Especially if it gets hot in the summer, with
one of the "reversible" systems there's a double benefit.