Well, that fits like a glove again!!
Being stingy with heating costs but having the big showpiece pool in the garden, which fills itself with rainwater!!
Sorry for writing with a sharp tongue!!
How nice that it is, on the one hand, up to everyone themselves and, on the other hand, there is nothing at all against wanting to save energy and thus heating costs at the same time just because you own a pool.
And based on your last 3 posts that I was allowed to read, I would ask you to only post relevant comments and not fill the forum with spam if you have no idea about building. Because that is the impression I have had of you so far.
Regards, Thomas