Mechanically ventilating with whole house fans reduces the need for air conditioning. The powerful suction created by whole house fans exchanges hot air inside your home with cooler outside air. Ceiling mounted whole house fans vent air from your living room into the attic, where it escapes through vents. Quieter, ducted whole house fans transport hot air directly outside of your home using ductwork.

 Commonly found in older homes, opening windows and doors to naturally air out and cool your home could help take the strain off of your air conditioner when properly performed. Open your windows in the morning and evening when temperatures are coolest to prevent summer heat gain inside your home, being diligent about closing them before the mercury rises.

Locally ventilating areas inside your home such as the kitchen and bathroom with exhaust fans helps control moisture that can bog down your heating and cooling system. It is typically used in conjunction with other types of ventilation, and can make natural ventilation more effective.

 Properly venting your attic and crawlspace controls heat and moisture levels in your home that affect your HVAC system’s capacity to maintain temperature and keep you comfortable. Cross ventilation between the eaves and ridge line in your attic helps control heat and humidity both in the attic and your living space, so ensure these vents are not blocked. Crawlspaces must be properly vented as well to control moisture and prevent structural rot. Visible mildew indicates a need to contact a professional contractor for help properly ventilating this area.