Is My HVAC System Too Large?

Is My HVAC System Too Large?

If you’re like most people, when you think about the size of your heating and cooling system, you wonder if it’s too small for your home. While that’s definitely something to be concerned about, a sometimes more important factor to consider is if your HVAC system is too large for your home.

An oversized heating and cooling system can really put a strain on your energy bills, so you should take a moment to see if your system is the right size for your home.

Your Home Feels Humid All the Time

Properly-sized AC systems run slightly longer cycles that cool your home and control humidity levels. If your system is too large for your home, it will be able to cool it more quickly and run shorter cycles. While this may seem like a good thing initially — shorter cycles mean less energy-use — it is not good for humidity control.

Shorter AC cycles can’t remove enough humidity from your home, so the air in your house can feel sticky, and you end up feeling very uncomfortable.

Your Home Feels Like an Inferno

On the contrary to summer situations, during the winter, you can tell your HVAC system is too large if the rooms in your home feel like they’re actually on fire. A regularly-sized heating system distributes warm air evenly throughout your home — notice we said “warm.”

A heating system that is too large floods your home with hot air, making it feel as though you’re like in an inferno. Nothing like walking inside and having snow melt right off your clothes, right? Wrong.

You Made Energy Upgrades

Sometimes the system you have is perfectly fine — that is, until you make some energy-efficiency upgrades to your home. If you add more insulation to your home or seal up drafty areas around windows or doors, more cool or warm air will stay inside your home, rendering a large HVAC system problematic.

If that’s the case, you may want to talk to your HVAC professional about downsizing your heating and cooling system.

The best way to know if your HVAC system is the right size is by asking a professional.


For your Pittsburgh home, trust the experts at Wahl Family Heating, Cooling & Plumbing. From ductless to central systems, we offer a number of solutions to keep you and your family comfortable all year long.

For more information or to schedule a service, call us at 412.265.2662.