Ventilation-based condensation control. For the more demanding situations use Dryvent Range. For more moderate protection use Wolf K in the kitchen, Vapour Vents in the bedrooms, and Dryvent B in the bathrooms.
Building regulation minimum purge ventilation 60l/s for kitchen and 15l/s for bathroom. Well tried and known system, minimum level for condensation control.
Whole house based ventilation through continuously venting the kitchen and bathroom. Weasel fan for venting through window frames, Dryvent K & B for wall mounting.
Ventilation with Heat Recovery Ventilators (HRV) provide continuous ventilation with heat retention with the return air. Low temperature difference between inside and outside offer low heat recovery. A good source of balanced replacement air.