On Sat, 06 Jul 2019 21:20:08 +0100, Vir Campestris wrote:

Lancashire you probably can't fix - but why is the ventilation poor?

Can't you open a window?

It's on the other side of the house, so if some scally climbed through it
to rob us, we'd never know.

I supposed one of those adjustable vent thingies would help a lot, but
they're quite a big deal to install and the last time we tried to do
something similar, we got a blizzard of polystyrene pellets from the
cavity insulation. Don't want that again!