The average NZ family produces over 100 litres per week of moisture in the home. If not removed it can result in condensation, mold, mildew and damage to your home.
Open doors and windows. Keep a window with security stays slightly ajar in the bedroom overnight. Use extractor fans in the bathroom and kitchen. Avoid drying washing inside. Install a home ventilation system.
Address any specific sources of moisture; leaky pipe, damp under house, structural rot, lack of extraction, unflued gas appliances. Install a home ventilation system.
The air movement ventilation systems create takes the moist, stale air that causes condensation and mold out of your home and brings dry filtered air in.
By themselves they are not an effective way to heat your home. To make your home warmer invest in insulation and install an effective heating system.
The cooler temperature at which condensation, or water droplets (dew), form when warmer air comes in contact with a colder surface such as a window or glass surface.