WE ARE OPEN 8AM - 8PM , 8 DAYS A WEEK!

4.9 google ratings

Over 6,400+ reviews

A person in a wheelchair moves up a sloped ramp alongside a staircase, illustrating accessible building design.

Call or text to schedule service!

Problems with an Oversized Furnace

If you read along with our blog, you’re probably fairly familiar with a lot of the common issues that can arise with your furnace or heating system. From odd noises to reduced efficiency, we’ve discussed it all! But have we? You can probably understand why a furnace that is too small could be a problem. But did you know your furnace can be too large too?

Looking for furnace installation, repair, or maintenance in St. Charles and West County that you can depend on? Call on the experts at Jerry Kelly Heating, Air Conditioning, Electrical and Plumbing today to get the service and skill you and your home deserves!

The specifics of furnace installation: Not too small, not too large

Possibly the single most important factor of a heating system is its size. It doesn’t matter if you use a gas furnace, electric, oil, or even a boiler, if your furnace is the wrong size, it’s not going to operate properly. But why is too large of a furnace an issue? Well:

  • Large furnaces heat too quickly. Getting the heat you want fast seems like a good thing, right? Well, it can go too quickly. If your furnace reaches its target temperature too fast, it almost definitely didn’t heat evenly, or thoroughly. This means the area near its sensors got nice and toasty, but the rest of your home got left in the cold!
  • An over-sized furnace is terrible for efficiency. For similar reasons to it heating too quickly, a large furnace has a huge negative impact on your efficiency. Since it’s not heating evenly, that cold air left around will rapidly cool the home again, basically forcing your furnace into a loop of rapidly kicking on and off (short-cycling). This costs you a lot of energy, and by extension a lot of money.
  • Furnaces that are too large will wear out quickly. If your furnace is too large, it’s also working too hard. This can reduce its lifespan by years, sometimes even cutting its performance life to half. Additionally, in that time you’re going to be seeing a much higher need for costly repair.
  • The heat of an oversized furnace can be overbearing. Depending on the layout of your home, and how your thermostat interacts with the structure, the rooms that heat super rapidly can become unbearable. Some rooms can become a dry-air sauna, while others feel almost as chilly as outside! This can do serious harm to your home and can be bad for your health as well, causing increased allergies, dry skin, and occasionally illness.
  • So how do you avoid getting a furnace that is just the right size for your home? Work alongside a trusted HVAC specialist! A trained professional can gather all of the relevant information about your home, and assist you in choosing the right heating system type, size, and energy rating to ensure perfect comfort and maximum efficiency.

    Get the right-sized furnace for your St. Charles home with Jerry Kelly Heating, Air Conditioning, Electrical and Plumbing

    Our experts carry years of experience and knowledge, making them some of the most capable and skilled teams in St. Charles! We can make certain that your furnace installation or replacement is the perfect fit, so contact us today to learn more!

Contact Us Today!

I want to receive emails with special offers, news and more.
Americans with Disabilities Act (ADA) Notice

At Jerry Kelly Heating, Air Conditioning, Electrical and Plumbing, we are committed to ensuring that individuals with disabilities enjoy full access to our websites. In recognition of this commitment, we are in the process of making modifications to increase the accessibility and usability of this website, using the relevant portions of the Web Content Accessibility Guidelines 2.0 (WCAG 2.0) as our standard. Please be aware that our efforts are ongoing. If at any time you have difficulty using this website or with a particular web page or function on this site, please contact us by phone at (636) 630-1725; or email us at ([email protected]) and place “Web Content Accessibility (ADA)” in the subject heading and we will make all reasonable efforts to assist you.

Schedule Now

I want to receive emails with special offers, news and more.