In attempting to conserve energy and reduce our heating costs, we can sometimes make our homes too air tight. In fact, for a house to be healthy, it needs to “breathe”. It needs to expel moisture and other gases from inside and take in a constant supply of fresh air from outside. When a fuel-burning appliance in your home does not get enough fresh air and fails to completely burn its fuel, carbon monoxide is produced.If ventilation is damaged or blocked, or if you have a powerful kitchen fan, bathroom fan or open hearth fireplace, then carbon monoxide can be drawn back inside the house. Exhaust fans can compound the problem Be mindful that the air you exhaust from your home has to be replaced. Powerful exhaust fans in bathrooms and kitchens or open hearth wood- burning fireplaces can actually create a negative pressure inside your home, resulting in a back draft which will draw exhaust fumes from your furnace, hot water heater or other appliances back into the house. How can yo...
HVAC-R, Electrical Blog