April 14, 2020

Many homeowners seem to believe that a good way to save money on heating and cooling costs is to close the vents in unused rooms. This is actually counterproductive. Not only can closing your vents cost you more money in the long run, but it can also damage some very costly components of your heating and cooling system.

What Actually Happens When You Close Vents

Modern homes rely on internal air pressure to supply air throughout a home. As air is pushed into a room, the same amount of air is pulled out. However, when a vent is closed, that balance is disrupted. A closed vent causes an air pressure buildup in the ducts that can affect your air quality and the operation of your HVAC equipment.

A closed vent won’t reduce the air that is being pumped through the ducts to a room. Instead, it will cause the blower to put in more effort to deal with the pressure buildup as it tries to force air through the blocked vent. Not only will this make your system use more energy, but it can also burn out your heating and cooling equipment as they try to fight against the pressure.

Closed vents can also lead to a buildup of debris in your duct system, which can affect the health of your family and the longevity of your HVAC system. Let the experts at Hi-Tech Air Heating & Cooling in Lakeside, CA, inspect and clean out your home’s heating and cooling system.

Can Closed Vents Damage an HVAC System?

The pressure buildup that closed vents cause can also negatively impact the functioning of your system’s blower, the mechanism that sends air into and pulls air from your home. A permanently split capacitor (PSC) blower can eventually slow down your home’s airflow when under too much pressure. This reduced air flow can lead to costly damages to your evaporator coil or your heat exchanger. If these sensitive parts aren’t under warranty and they break, it would be less expensive to replace the whole system than try to purchase individual parts.

Instead of listening to heating and cooling myths to save money, let the HVAC experts at Hi-Tech Air Heating & Cooling help you lower your energy bill by keeping your equipment in good shape. Our professionals offer a variety of cooling and heating system services. Give us a call today.

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