When is it Time to Replace My Furnace?

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Your furnace can last a good long time, as long as you take proper care of it. You can’t make it last forever, though. Sooner or later, you’re going to need to install a new system. If you don’t recognize that your furnace is nearing the end of its life, it may break down on you unexpectedly. Keep an eye out for the following signs that you need a new furnace.

Efficiency Drops

The older a furnace gets, the more wear and tear it accumulates. Eventually, the system gets so worn out that it starts to suffer a decline in efficiency. As the efficiency of the system drops, it is forced to stay on for longer and longer periods of time in order to compensate. This will cause a spike in heating bills, which is often the first indication that the furnace needs to be replaced. Call a professional if it seems like your furnace is costing more to operate than it should.

Rising Repair Needs

Eventually, the accumulated wear and tear on the furnace will cause parts of it to start breaking down. A furnace normally doesn’t need repairs very often, once a year at most. An older furnace will need repairs far more often. If you need to repair the furnace every couple of months, it’s time to replace it.


Age is a good indicator of the health of your furnace. Once a furnace gets older than 20 years, the chances of it developing serious issues increases dramatically. Even if your furnace is in relatively good condition, you may save more money in the long run by replacing it if it’s older than 20 years. Consult with a professional about whether or not to replace your furnace.

Call Bell Plumbing and Heating for comprehensive furnace replacement services. We cover all of Denver, CO.

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