If you have a furnace at home and you are unsure if you need to replace it or not, then you should keep your eyes open for some possible warning signs that your furnace is dying. You want to ensure that it’s safe and it is cost-efficient for your home. Check them out now.


  • Think about the age of your furnace and compare it to the average life expectancy of furnaces of that kind. Usually, the average life expectancy is between 16 and 20 years, so you can make a decision based on that.
  • Monitor your furnace, to see if the gas and electric prices have risen lately, because the older your furnace, the more likely they are to lose their efficiency, particular if there hasn’t been proper maintenance performed over the years.
  • If you have had to do any furnace repairs within the past couple years, then you may realize that you have replace a part, but then you’ll have to replace another part, and another part, and another part, etc. The best idea would be to replace your entire furnace instead of having to make costly repairs to it constantly.
  • If you realize that your thermostat isn’t making the different rooms at a comfortable temperature, then you might need to replace it. You might be feeling too hot or too cold or you might always have to adjust your thermostat so that you’re comfortable, and those are signs that it may be time to replace your thermostat.
  • Check your burner flame to see if it’s yellow and not blue. If it is yellow or if you see a flickering flame, then that may mean that the furnace is creating carbon monoxide.
  • Listen to your furnace to determine if it is making any strange sounds such as popping, banging, squealing, etc. If you are hearing these things, then you may need to replace your furnace.
  • Pay attention to the complaints your family has been making. If you hear them complaining of things such as disorientation, headaches, nausea, burning in the nose/eyes and flu-like symptoms, then you might need call a gas service technician or replace your furnace immediately.
  • Ask yourself if the air in your home feels stuffy, dusty or dry, because that may show that your furnace isn’t moisturizing and cleaning it well. Another sigh that your furnace may need to be replaced.


If you are looking for an experienced and affordable heating and cooling contractor in Ottawa to handle all of your Ottawa HVAC needs, then give us a call to get professional help with your central air conditioner, furnace or fireplace for a complete home comfort experience. We have decades of experience in home heating and cooling and Capital City Heating & Cooling provides all HVAC services including heating & air conditioning installation, repair, service & maintenance in Ottawa and surrounding areas.