Furnace Quiz- Are You Safe From A Furnace Failure?

Furnaces can be large, complex machines. And like any machine, they need regular maintenance to stay running smoothly and continue providing warmth in the wintertime. Furnaces can also be sensitive and finicky pieces of equipment. They’re filled with hot air and burning flames, after all! If you don’t take the time to care for your furnace properly, it could suddenly stop working or have a serious malfunction. That’s why it’s important to understand how to keep your furnace healthy and risk-free this winter. This blog post will help you identify potential risks with your home’s current furnace setup. If any of these concerns sound familiar, it may be time to get a professional evaluation before things get worse.

Check Your Furnace’s Venting

The biggest risks to your furnace are fires and explosions. The first step to keeping your furnace safe is making sure that it’s vented properly. There are two main types of furnace venting systems: There may be other types, but these are the most common. If your home was built after 1990, it’s most likely that it has a standard, single-stage system. Single-stage systems are designed for efficiency. They’re also designed to be safe. Single-stage systems work by bringing cold air into the furnace and then blowing hot air out into the house. The cold air keeps the house from getting too warm, so you don’t have to use excess energy. The only real risk of a single-stage system is that the cold air coming into the furnace could freeze the furnace’s air filter. If the filter gets too cold, it could crack or tear. If that happens, you’ll need to replace the filter right away.

Check Your Furnace’s Filters

The second thing you should check is your furnace’s filters. The furnace’s filter is there to catch any dirt, dust, and other particulates that could build up inside the furnace. Without a filter, this buildup would restrict airflow and cause the furnace to overheat and break down quicker. Depending on the model of furnace you have, you may have a reusable filter or a disposable one. If you have a reusable filter, you should clean it regularly. If you have a disposable filter, you’ll have to replace it about once a month. Cleaning or replacing your furnace’s filters can greatly lower your risk of a furnace failure.

Check The Flame Sensor

The next thing you should check is your flame sensor. The flame sensor is a sensor that is meant to keep the furnace from starting if there is no flame burning. If the furnace has a sensor in it that’s not working, it could start without a flame. If that happens, the furnace’s motor may burn out. You may also smell an abnormal burning smell. If you smell a burning smell, the first thing you should do is shut off the furnace. Then, carefully unplug the furnace and look for a flame sensor. If you find one, replace it immediately.

Check The Combustion Chamber

The next thing you should check is the combustion chamber. The combustion chamber is where the air and fuel are combined to create a flame. If there are any problems with the combustion chamber, it could cause the furnace to sputter or misfire. You may hear or smell the furnace clicking, sputtering, or coughing. If you hear or smell anything strange coming from your furnace, the first thing you should do is shut off the furnace. Then, unplug it and look inside the combustion chamber. If you see any problems, such as dirt or rust, you’ll need to clean the chamber and the air vents. Allowing problems in the combustion chamber to go untreated can cause the furnace to break down completely.

Check The Ducting And Vents

The next thing you should check is the ducting and vents. The ducting is the tube that carries the hot air from the furnace to the rest of the house. If the ducting has any holes in it, the hot air will escape. It could also make the house too warm and cause the furnace to overheat and break down. If you notice any holes in the ducting, you’ll need to replace it immediately. The vents are the part of the ducting that lets the hot air escape into the house. Some vents are automatic, and some are manually controlled. The vents are there to regulate the flow of air. If something is causing the vents to become clogged, it could cause the furnace to overheat.

Fix Any Problems You Find

The last thing you should do when checking your furnace is to fix any problems you find. If you notice any issues with your furnace, make sure to fix them right away. If you notice rust or dirt in the combustion chamber, clean it. If you notice holes in the ducting, replace them. If you notice a problem with the flame sensor or the flame sensor isn’t working properly, replace it. If you notice a problem with the filter, you have two options. You can clean it and allow it to continue functioning, or you can replace it. If you have a reusable filter, you can clean it regularly to keep it in good working order. If you have a disposable filter, you can replace it about once a month.


A furnace can be a fantastic thing to have in your home during the winter months, but only if it is working properly. While it is a good idea to have your furnace inspected every year, it is also a good idea to keep an eye on it yourself. If you notice anything that seems out of the ordinary, call a professional immediately. It is better to be safe than sorry, especially when it comes to your home’s furnace.