Dehumidfiers are the answer for condensation.
We had an 12-15 year old one that we used to run in our large lounge throughout the winter.
Replaced it with a new one this year, what a difference. Shows the humidity level and set accordingly. We set ours at 50.
It worked so well that we bought another one for the hall.
Make was Netta cost around £129 each.
BTW Zissener paints are expensive but fab, well worth the money.