Might be worth looking at fitting decent extractors to the kitchen and bathroom. Damp humid air is harder to heat than cold dry air , causes mold to form behind wardrobes and discolours paint.
Drying wet towels and clothes on a rad in a house creates huge amounts of water vapour, the kg of water evaporates and condenses on a cold surface.
My mums 1880 bulit property is terrible for this, bedding feels slightly damp to the touch and unused rooms have thhat slight dank smell of lurking moulds.
We bought her a dehumidifier , which battles with an oil fired rad upon which clothes are dried. Windows are never opened and all clothes dried inside .