Closing Off Air Conditioner Vents

Why closing air vents doesn t work.

Closing off air conditioner vents. Furnace s heat exchanger the part that heats the air. Before closing any vents in your home. This can increase your energy bills and even lead to premature breakdown of your ac if you close too many vents. As it turns out closing air vents in a home with a modern central heating and air conditioning system does little to save energy.

Air conditioner s evaporator coil the part that cools the air. Low airflow will cause heat exchanger to. In addition this increased pressure places strain on your air ducts. Ensure that your ducts are properly sealed and connected.

The belief is that closing a vent will simply push the air onward to other parts of the home improving energy efficiency. Yes your system may be fine if you close a register or two in your home but the results will depend on how restrictive and leaky your duct system is. Your air ducts make it worse. Low airflow causes the coil to get too cold and sometimes turn into a block of.

In a 2003 study the lawrence berkeley national laboratory discovered that register closing led to increased energy use. How closing air vents can hurt your hvac system. Closing vents disrupts this balance and creates pressure in your system which causes your air conditioner to work harder. Ask for a recommendation of which vents if any in your home make sense to close without placing stress on.

Homeowners typically close vents in an attempt to redirect air away from unused spaces. Closing air vents is a popular strategy for adjusting air flow in the home but it s not necessarily a good one. In fact it could even cause your energy costs to increase. Environmental protection agency estimates that most homeowners lose 20 percent.