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Signs You Need a New Air Conditioning Unit (And How to Choose the Right One)

Beat the Heat: Is It Time for a New AC? Expert Advice from Keith Powell Heating and Cooling in Knoxville, TN

As the summer heat in Knoxville, TN ramps up, your air conditioning unit becomes your best friend. However, like any long-term relationship, there comes a time when you must decide if it’s more cost-effective to repair your old unit or if it's finally time for an upgrade. At Keith Powell Heating and Cooling, we understand that making the leap to a new AC unit can be daunting. Here’s how to tell if you need a new air conditioner and tips on choosing the right one for your home.

Telltale Signs It’s Time for a Replacement

Your AC is Over a Decade Old

Air conditioning units have a lifespan of about 10-15 years. If you’ve been patching up your AC for over a decade, it might be time to start fresh with a newer, more efficient model.

Frequent Repairs

Are service calls becoming a regular part of your routine each summer? Frequent breakdowns are a clear indication that your AC unit is on its last legs. Investing in a new system could save you money and hassle in the long run.

Energy Bills are Soaring

Older units aren't as energy-efficient as newer models. If your utility bills are consistently high during the cooling season, this could be a sign that your AC system is working too hard to keep up.

Inconsistent Temperatures

If some rooms are icy cold while others stay warm, it could point to a failing AC. A new unit can offer consistent comfort throughout your home.

Strange Noises or Smells

Banging, clanking, or musty odors should never be considered normal. These signals are often indicators of underlying problems that may not be worth fixing.

Your Unit Uses R-22 Freon

R-22 Freon has been phased out due to its environmental impact. If your AC still uses this refrigerant, it's time for an upgrade to a more eco-friendly and readily available option.

Choosing the Right Air Conditioning Unit

Once you’ve decided to invest in a new air conditioner, the next step is picking the right one. At Keith Powell Heating and Cooling in Knoxville, we recommend considering the following factors:

Energy Efficiency

Look for units with a high SEER rating (Seasonal Energy Efficiency Ratio). The higher the SEER rating, the more efficient the unit will be. This translates to lower energy costs and is better for the environment.

Size Matters

An oversized or undersized unit can lead to inefficiency and discomfort. We at Keith Powell Heating and Cooling can perform a load calculation to determine the perfectly sized unit for your home.

Type of Air Conditioner

Central air conditioners are popular but consider if a ductless mini-split system might be more appropriate for your needs. They’re great for homes without existing ductwork or for room-specific cooling.

Smart Features

Modern AC units often come with smart features that allow you to control your system remotely. Some even learn your habits and adjust temperatures accordingly for maximum efficiency and comfort.

Warranty and Support

Always check the warranty offered with your new AC. A good warranty can protect you from unexpected costs. Furthermore, choose a company renowned for excellent customer support — like Keith Powell Heating and Cooling.


While it’s important not to skimp on quality, finding a unit that fits your budget is equally crucial. Keep in mind that investing in a more expensive, efficient unit now can save you money in the long term.

Installation Matters

The most efficient unit won’t perform well if it’s incorrectly installed. Trust professionals like us at Keith Powell Heating and Cooling to ensure your installation is done right the first time. Our team of certified technicians ensures that every detail is taken care of, from selecting the right size unit to the final installation and testing.

The Keith Powell Heating and Cooling Advantage

Choosing a new air conditioning unit doesn't have to be stressful. With Keith Powell Heating and Cooling, you get the benefit of our expertise and a commitment to customer satisfaction that’s as cool and refreshing as the air your new unit will circulate. Serving the Knoxville, TN area, we pride ourselves on delivering top-notch service and reliability.

Upgrading your AC unit can improve your home comfort, reduce your carbon footprint, and save you money on energy bills. When the signs are there, don't sweat it — embrace the change! Remember, a new AC isn't just a purchase; it's an investment in your home and quality of life.

Ready for a cooler home experience? Reach out to Keith Powell Heating and Cooling today, and let's discuss the ideal air conditioning options for your Knoxville home!