Closing Air Conditioner Vents

If you close off the vents in a room you throw off the intended pressure balance that your system is designed to operate under which can lead to the effects below.

Closing air conditioner vents.

The only way something like this could work is if closing a vent signaled the blower to move less air and the air conditioner heat pump or furnace to move or produce less heat. So what s the solution. In fact instead of helping the air conditioner cool less closed registers force the same amount of air through other ducts. When the vent is set on closed the window air conditioner simply circulates and recycles the air inside the room.

It sounds counter intuitive but leaving your air vents open will use less energy than closing them. This builds pressure in the system and makes your hvac system work harder to distribute the air where you need it. This increases the pressure in the room which forces out some of the indoor air. Electronically commutated motor ecm blower this blower can adjust its speed to varying conditions.

Closing vents will also increase your monthly utility bill as your hvac struggles to keep up. Particularly if the registers are not sealed to the drywall opening. Your energy bills will be higher. Closing vents will cause different problems depending on the type of blower.

The vent on a window air conditioner is an opening in the unit where outdoor air can enter the room and where indoor air can be exhausted. Like the idea that cranking the thermostat all the way up or down heats or cools a house quicker the notion that closing some household vents increases overall hvac performance and efficiency is a. Add that to the increased leaky ductwork and your air conditioner s efficiency can decrease dramatically simply by closing a few vents. Permanent split capacitor psc blower closing vents causes this blower to slow down because it can t overcome the.

Before closing any vents in your home. Properly designed zoned duct systems do this by using variable speed ecm blowers with multi stage systems. Closing the vents doesn t do it any favors. Environmental protection agency estimates that most homeowners lose 20 percent.

The only real difference with closing vent registers vs balancing dampers is the increased potential for losing conditioned air to an unconditioned space by closing vent registers. Leave your vents open. The issues your hvac experiences due to closed vents are like problems caused by dirty air filters including inadequate airflow turning off and on frequently and premature hvac breakdown. With the vent set on open outdoor air is allowed into the room.

Ensure that your ducts are properly sealed and connected. The side effects of closing vents in unused rooms.