Many homeowners with larger homes rely on two air conditioning units to maintain a comfortable indoor climate. When one unit starts to fail, a common question arises: should both units be replaced at the same time? The answer depends on several factors, including the age of the systems, energy efficiency, and long-term cost considerations.
Age & Efficiency of Your Units
If both AC units were installed at the same time, they are likely to wear out around the same period. Most air conditioners have a lifespan of 10-15 years, and as they age, their efficiency declines. If one unit has failed and the other is near the end of its lifespan, replacing both at the same time can save money and avoid the hassle of another installation in the near future. A newer unit will also be more energy-efficient, leading to lower utility bills.
Cost Savings & Installation Efficiency
While replacing both units at once requires a higher upfront cost, it can be more cost-effective in the long run. HVAC contractors often provide discounts for installing multiple systems at the same time. Additionally, installation labor costs may be lower when both units are replaced simultaneously rather than scheduling two separate projects. Coordinating the replacement of both units also minimizes disruptions to your home.
Matching Compatibility & Performance
If your AC units work together to cool your home efficiently, having mismatched systems could lead to performance issues. Newer units are designed to work with modern thermostats and variable-speed technology, while an older unit may struggle to keep up. Replacing only one unit may cause imbalances in cooling, resulting in uneven temperatures throughout your home.
Environmental & Energy Efficiency Considerations
Upgrading both AC units together ensures that you are using the latest energy-efficient technology. Modern air conditioners come with improved SEER (Seasonal Energy Efficiency Ratio) ratings, which reduce overall energy consumption. Older units typically use outdated refrigerants that are less environmentally friendly. A new system will not only be better for the environment but will also reduce energy costs over time.
When Replacing One Unit Might Be the Better Choice
If the second AC unit is relatively new and still under warranty, replacing both may not be necessary. A well-maintained air conditioner that is still operating efficiently does not need immediate replacement. Consulting an HVAC professional to assess the condition of the working unit can help determine whether it has several good years left or if it is worth upgrading alongside the failing unit.
Central AC Inspections, Tune Ups, Repair, Replacement & More in Summerlin, North LV, Henderson, Enterprise, Paradise, Spring Valley, Sunrise Manor & Greater Las Vegas, NV
Deciding whether to replace one or both AC units depends on various factors, including system age, efficiency, cost, and compatibility. If both units are aging and less efficient, replacing them together is a wise investment. However, if one unit is still in good shape, replacing only the faulty one might be the more economical choice. Consulting with LV Heating & Cooling can provide clarity on the best course of action for your home’s cooling needs. Call LV Heating & Cooling today to find out what’s right for you.
