If you have not had a tune-up or inspection performed on your furnace in a while, or if you have had your unit for more than 10 years, you might be surprised to hear your HVAC Technician tell you that you have a cracked heat exchanger.
A cracked heat exchanger is a dangerous situation that requires you to stop using your heating system until it is replaced. A crack in your system heat exchanger exponentially increases the chances of a carbon monoxide leak into your home’s air supply. The American Gas Association has strict safety rules regarding systems with cracked heat exchangers. It is an industry standard that all cracked heat exchangers be replaced.
As a homeowner, you may be inclined to brush aside the seriousness of this issue. After all, your furnace may have been running fine before we arrived and may continue to do so after we leave, however, the reality is that your furnace may be presenting a very real and present danger to your home and family. It needs to be addressed promptly.
What Is A Heat Exchanger?
A heater exchanger is a piece of equipment designed for the efficient transfer or exchange of heat between two fluids without the fluids having to mix or come in direct contact with each other. Fundamentally, a heat exchanger transfers the heat without transferring the fluid that carries the heat.
Take for example a forced air furnace. A forced air furnace has two different streams of air – 1) The return air from your home and 2) the hot exhaust from the furnace. These two air streams are separated by tubing or sheet metal generally fashioned in a zig zag or snake like manner to allow for maximum amount of air to flow over it therefore allowing the most heat to be exchanged between the two streams. Your car’s radiator is also an example of a heat exchanger.
What Causes Heat Exchangers To Crack?
As you learned earlier, the purpose of the heat exchanger is to exchange heat. As it cycles through this process the metal tubing heats up and cools down repeatedly. This alone is enough stress to cause cracks over time. Additional factors affecting the chances of cracking are too little air flow through your system and overly high gas pressure. Either of these can be attributed to a furnace that is too big for your home with inadequate duct work.
If you have not had your Denver, CO HVAC system inspected in a while, give us a call. We will come out and give your system and good and through check up. If we find any issues with your heat exchanger we will promptly assist you in remedy the situation. We are locally owned and operated and have consistently received an A+ rating with the Denver Better Business Bureau. We are well reviewed by your friends and family.
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