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Dec 12 2022

How to Know If I Should Replace AC and Furnace at The Same Time

Your HVAC system is responsible for heating, ventilating, and conditioning the air in your living spaces. Though different components and units are responsible for heating versus conditioning the air, there are also many parts that both the furnace and the AC share. So, it can be tricky to decide whether to replace one, or both, of the AC and furnace. In this article brought to you by Rooter Hero Plumbing & Air, we will dive into some things to consider. If you prefer to consult with an experienced technician, then call Rooter Hero today. We are proud to serve many cities in California and Arizona. Explore our website to see an updated list of the cities we serve.

Time to Replace the AC or Furnace?

The first question is whether you need an AC or furnace replacement to begin with. If your units are less than 10 years old, then a repair is the first option to consider. However, if your AC or furnace is over 10 years old and is regularly breaking down, then it might be time to replace one or the other – or both!

Generally, we recommend a furnace or air conditioning replacement if the cost of repairs exceeds half the price of a new unit. There are also other factors to consider, but we will get to those later.

Sharing Spaces

Though the air conditioner and furnace serve completely different purposes (one cools and the other heats), they share a lot of common components. These shared parts include the fan(s), air ducts, evaporator coils, thermostat, and more. Because of this overlap, there can be a lot of incentive to go ahead and replace the furnace and the air conditioner at the same time.


If you have found a great new furnace or air conditioner and want to integrate it into your HVAC system, then you must first make sure the new unit is compatible with your existing system. Even if pairing a state-of-the-art unit with a decade-old system is possible, the headache might not be worth it.

The Cost-Effective Option

If you are thinking of upgrading one of the units, then you will likely need to upgrade the shared components as well. It could be more cost-effective to go ahead and replace the other unit while the technicians are on-site. Often, the cost of labor will be less this way than for separate installments.

Avoid Further Damage

If both the air conditioner and furnace are damaged but you only replace one, the old system could damage the new unit. You could end up dealing with premature repairs or replacements.

Speak with a Professional Today

The folks at Rooter Hero Plumbing & Air can help whether you need a quick furnace repair or are ready to replace your HVAC system altogether. Call Rooter Hero today to speak with a live representative. We are proud to serve many cities in California and Arizona. Explore our website or call us to see if we serve your city.

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