Your air conditioning system is aging and it's important to know when it's time to replace it. According to Hughes, the Department of Energy recommends replacing the heating, ventilation and air conditioning (HVAC) system after 10 years for maximum efficiency. Some newer units can last up to 15 years, so be sure to check when you installed yours and ask a professional how long it should last. Generally, central air units will last 12 to 17 years with average use and good maintenance.
The size of the unit doesn't affect the lifespan of the air conditioner, unless it's not the right size for your home. For example, if you have a small 1.5 ton air conditioner trying to cool a house and you really need a 5 ton air conditioner, the unit will break down much faster due to overuse than a properly sized (but more expensive) unit. It's important to follow building codes and installation guidelines when replacing an HVAC system. If your HVAC system is more than 10 years old, it's time to plan for major HVAC repairs or replacements.
HVAC technology has come a long way, and your home's energy efficiency is being affected simply by keeping older HVAC technology. Beyond safety considerations, HVAC professionals can purchase units directly from manufacturers and install them quickly following appropriate protocols. The only way to know for sure if your HVAC system is underperforming or overworked is through a professional energy audit or inspection by an HVAC technician. What most homeowners don't know is that even with a newer, more energy efficient HVAC system, if your home isn't properly insulated or professionally sealed, the life of the HVAC system is automatically shortened.
In addition to costly future repairs due to faulty or improperly installed equipment, your HVAC system can filter carbon monoxide or other toxic substances that can reach your home. So how do you know when it's time to replace your home's HVAC systems? And how can you get the right air conditioning system for your home without draining your bank account? Many utility companies offer HVAC rebates when you're ready to upgrade your HVAC system to an energy-efficient model. It's important to do research and consult with an expert before making any decisions about replacing your HVAC system.
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