It is very important to know the telltale signs that a furnace needs to be replaced before it costs you money or becomes unsafe. Also, to ensure that your home has a comfortable and healthy environment that is suitable to live in, you will need to make sure that your furnace is working properly. You should not wait until a crisis occurs before you start thinking of replacing the furnace.
One thing that will help you to know whether a furnace needs to be replaced is its age. The life expectancy of most furnaces is between 16 and 20 years, so if yours is close to this age you might want to start making plans to replace it. Shopping for a replacement furnace earlier will allow you time to make the best decision on which new furnace to buy. But if you have been observing good maintenance of the furnace, it might be able to serve you for even more than 20 years. Just check its pilot light and see if it is working properly.
When you start noticing a rise in gas and electricity bills, it might be a sign that your furnace needs to be replaced. When the furnace gets older, it loses its efficiency especially if proper maintenance was not being observed to it. When the furnace gets less efficient, it will have to run longer in order to provide the same amount of heat. Instead of using more money to pay the electricity and Gas Company, you could use that money to buy a new furnace.
You will also have to consider replacing your furnace if it becomes hard to gets parts if you need to do a replacement to it. At the end of the lifespan, most furnaces will experience breakdowns, so if you cannot be able to get spare parts you might have to spend cold times in your home. Instead of putting up with the inconveniences of the long wait, money and searching you will have to endure while looking for spare parts, you might just need to replace the furnace.
You may also notice that some rooms have become quite colder while others are too hot. Or you might always be trying to adjust your thermostat in order to keep your home more comfortable. This is an indicator that your furnace does not have the capability to distribute the air properly in your home in order to keep you comfortable. It might also be a call for you to replace the furnace.
For a furnace to be functioning properly, it should have a blue flame. If you notice that your furnace has a yellow or flickering flame, it is a sign that your furnace is emitting poisonous carbon dioxide which poses great danger to your health. You could also notice streaks of soot around the furnace, and upward draft in the chimney and excess moisture accumulating on windows, walls and other cold surfaces in your house which result from the furnace emitting carbon dioxide.
Last but not least, you will notice your furnace making strange noises if it is not working properly. You may hear the furnace popping, banging and rattling. Or you may hear squealing noises coming from the furnace, or the blower running excessively. These are signs that the furnace needs to be replaced.