Whether you’re buying a new home or taking care of the one you’re in now, good Air Exchange/Ventilation is important because it helps protect your health and your home. Good ventilation is as critical to your comfort and safety as a reliable heating system, a smoke alarm, or a dry basement.
Heat Recovery Ventilators
Air exchanging Heat Recovery Ventilators (HRV’s) move stale, contaminated air from inside the house to the outdoors. At the same time, they draw fresh oxygen-laden air from outside and distribute it throughout the house. The heat contained in the outgoing air is transferred to the incoming air via the pleated core inside the HRV thereby saving energy while ventilating properly during the cold seasons. Stale, polluted air is constantly being replaced by an equal quantity of fresh clean air.
Negative Pressure in Homes
Homes with several exhaust items such as bath fans, a kitchen range hood blower, a dryer vent, fireplaces or wood burning stoves often can have inadequate incoming fresh air to make up for what is being forced out of the home. This can create a negative pressure in the home which may cause air to be pulled into the home from undesirable locations such as around electrical outlets, switches, unused chimneys, or other places resulting in energy loss or undesirable odors. It may also adversely affect atmospheric ventilated appliances (gas or oil burning with no power blower for exhaust) such as gas water heaters or hot water gas boilers and potentially cause a dangerous condition if flue gasses are drawn back into the home due to negative pressure. If you suspect this to be the case in your home, please contact ASP and we can do an evaluation and provide effective options for balancing your home’s Air Exchange/Ventilation.