Skip navigation

Serving the South Jersey Area

24 Hour Emergency Services


Serving the South Jersey Area


Elliott-McElwee, Inc. Blog

Booming and Other Noises You Don’t Want Your Furnace To Make

If your furnace isn’t working right, you are going to pick up on it at some point. Maybe it will be the overly high energy bills that you notice first or perhaps the lack of warmth will be the first warning sign. Or maybe you’ll hear the problem before there is any other indicator of trouble.

Noises are one of the key ways that we figure out if something is going wrong around us. Picking up on odd noises from your furnace heater can help you get the service you need before things get worse for this system.

So what noises don’t you want to hear? One of the most obvious is a booming explosive noise. We’ll discuss this concerning sound and more below.

5 Sounds You Don’t Want Your Furnace to Make

Let’s take a look at some sounds that you don’t want your furnace to make and why.


Booming is the sound of a lot of gas collected inside of your furnace combusting at once. As you can imagine, this is very hard for your system to deal with and can increase the risk of bigger repair needs and safety hazards down the line.

Booming is usually an indicator that the burners in your furnace are clogged with dirt, causing problems with the ignition process. Make sure to have a technician check and clean out your burners to address this.


Hissing is going to be a problematic noise to hear from a furnace. What you were likely hearing is gas escaping from your furnace system through a crack in the heat exchanger. You don’t need us to tell you how serious a problem this is.

If you hear this noise and smell gas, make sure to turn your furnace off. After that, open the windows and get anyone in the house outside before calling local emergency personnel to check the house and make sure you aren’t at risk. Once everyone is safe, schedule an appointment with a professional to check your system and get it fixed ASAP.


Screeching is going to be an indicator that there is metal scraping against or hitting metal inside of your furnace system. This could be due to loose fan blades or a none lubricated motor belt. screeching is both an unpleasant sound here and an indicator that you absolutely need to schedule a visit from a professional to repair the source of the sound. 

When Your Furnace Doesn’t Sound Right, Come To Us

If and when your furnace starts to sound a little off make sure to get help from a professional technician. Only a professional has the necessary expertise, tools, and training to accurately diagnose and address whatever is plaguing your furnace heater.

The expert technicians on the team at Elliott-McElwee, Inc. are available to provide the services you need to keep your furnace running effectively and safely through the coming months. We’ve proudly served homes throughout the area since 1980.

Contact the pros at Elliott-McElwee, Inc. today to schedule your furnace services in Egg Harbor Township. Your comfort is our business.

Comments are closed.