You need at the least an extractor fan, however, this will also cause cold air to be drawn in. The best option is a ventilation system. It draws air from the bathroom and kitchen and takes it through a heat exchanger to outside, meantime, the cold outside air is drawn in to replace stale air and goes through heat exchanger, therefore being warm air going in and is pumped into living and bedrooms. We had ours put in 5 years ago and never have any issues with damp or mould. Has also saved us on heating bills. Low cost to run.
Wales Home of the Year; new series
Soops kitchen, a place of reflection, refuge and at times revelry.


