Should You Replace Your AC and Furnace at the Same Time?

Your furnace and air conditioner help keep your home comfortable. Unfortunately, no matter their brand and quality, they don’t run for a lifetime. Over time, your units can age, show signs of wear and tear, deteriorate in performance, and have to be eventually replaced. Should You Replace Your AC and Furnace at the Same Time?

Replacing your AC unit and your furnace at the same time might be costly, but it can be a more practical option. Matching these systems lets them work together and improve their efficiency, helping you save money and energy in the long run. 

Factors to Consider When Replacing Your AC Unit and Furnace at the Same Time

The age of your furnace

Before replacing your furnace and AC together, consider when your furnace was installed. 

Furnaces can last up to 20 years, while air conditioners run for around 15 years. It’s best to replace them at the same time if your furnace is more than 15 years old. Meanwhile, if your furnace is less than 15 years old, consider seeking furnace repair from experienced contractors. Doing this will ensure that it works properly and expands its lifespan.

The airflow produced by your furnace

The key to getting the right indoor temperature is by getting your furnace to circulate the correct amount of air. To ensure this, make sure that your furnace is properly sized for your new air conditioner. 

Asking our skilled workers can help you determine the static pressure of your system and give you the right recommendation. We specialize in HVAC maintenance and repair and furnace replacement. Furthermore, we take pride in prioritizing your satisfaction, so you are assured that you will receive quality services to address your needs.

The type of your new air conditioner

Your AC unit relies on the furnace blower to distribute air. If you use an old, single-stage air conditioner, then maybe it’s time to get an upgrade. 

Opt for variable-speed models. This kind of AC unit uses less energy, helps you save money, and increases your comfort level by running at multiple speeds.

Benefits of Replacing Your Furnace and Air Conditioner at the Same Time

It gives you potential discounts

Replacing your furnace and air conditioner together lets you spend less on labour since both components are handled during the same appointment. The installation process is also easier and more convenient, and you could qualify for a discount.

It increases your units’ efficiency

Your air conditioner and furnace work well together if they are a “perfect match.” You are guaranteed they work at their peak performance, helping you cut down your utility bills and making your home as comfortable as possible in the long run.

It reduces the need for HVAC repairs

Old units are prone to malfunctions. If you keep seeking HVAC repairs, the fees can accumulate and burn a hole in your pocket over time. Replacing both your furnace and AC unit at the same time can be a more practical and cost-effective option than calling HVAC experts frequently.


Having a compatible furnace and air conditioner ensures a perfectly matched and efficient setup. Therefore, while replacing your AC unit and furnace at the same time can be expensive, it can help save you money long-term.

Whether you need an HVAC repair and maintenance or a new Furnace, AC, Heat Pump or any other HVAC equipment, you can rely on Legacy Heating & Cooling. We offer comprehensive, efficient, and cost-effective HVAC products and services. Book an appointment today!

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