All About Heating And Cooling Journal Today

Why Does Carbon Monoxide Leak From Your Heating Unit?

Apr 7

furnace repairIt is estimated that more than 50,000 people in the US are confined in hospitals because of accidental carbon monoxide poisoning. What’s worse is that approximately 430 people die due to this toxic, tasteless, and odorless gas.


But what is carbon monoxide? How does it exist? What will you do to protect your family from this harmful gas? You will know them all in this guide.


Carbon Monoxide - What Is It Really?


Carbon monoxide is a byproduct of combustion in fumes produced by portable generators, vehicles, gas rangers, kerosene heaters, lanterns, stoves, and furnaces.


But why does carbon monoxide leak from a heating unit? It’s because of a cracked heat exchanger. A heat exchanger is responsible for heating air to make your home warm and cozy during long colder months.


Unfortunately, it is prone to wear and tear like any other HVAC part, although it is made of sturdy materials.


What Are The Signs That Your Heat Exchanger May Be Cracked?


It is quite tricky to tell whether your furnace’s heat exchanger has cracks by looking at it, especially when you are a beginner. But worry no more!


Below are some signs that could indicate a problem with your heat exchanger:


A Yellow Flame

Normally, a furnace flame is blue. But it is not uncommon for your heating system to produce a yellow flame, which can mean that your heat exchanger has cracked or your burner has a buildup of dirt.


If the yellow flame also flickers, there could be more damages to your heating appliance that should be addressed immediately. So, to avoid any guessing game, it would be perfect to contact the pros for immediate furnace repair in Sandy, OR.



Another common sign that your heat exchanger needs a furnace repair in Sandy, OR is when black soot is coming from your vents. Aside from being an eyesore, this soot can put your health in great danger. When inhaled, soot particles can cause breathing difficulties and other severe asthma attacks.


But why does a furnace get soot? The culprit is the extra carbon inside your heating equipment caused by incomplete combustion - this is the inability of the unit to burn its gas.


There are multiple reasons the fuel in your furnace does not burn. A faulty burner is one that should be fixed immediately to avoid any unexpected problems in the future.



Have you started to notice rust on the external component of your furnace these past few days? Then, don’t leave it unfixed for days as that could indicate a problem with your heating system’s internal parts, like a cracked heat exchanger.


While removing the corrosion on your own could be cost-effective, remember that a problem like a damaged heat exchanger is technical and should be handled by a licensed professional in furnace repair in Sandy, OR for a safer and better result.


Unusually High Utility Bills

One sure sign your furnace is running inefficiently is if there has been a significant uptick in your monthly utility costs compared to previous months. A cracked heat exchanger can hinder the efficiency of your HVAC system and drive up your bills.


This is especially true in newer homes where the heat exchanger may be further away from living spaces due to updated building codes and standards.


Uncomfortable or Uneven Temperatures

As heat exchangers age, they lose their ability to transfer heat efficiently, making it harder for homeowners to maintain consistent warmth throughout their residential or commercial space. As a result, people who live in faulty units tend to complain about cold spots or rooms that are too hot.


By keeping an eye on how well your system delivers heat over time, you can tell if there is a problem with the furnace even before utility bills start spiking.


Keep Carbon Monoxide At Bay With Control Techs NW


If your heating appliance has been unusual for quite some time now and you started to notice soot from the unit itself, please do not hesitate to contact Control Techs NW at 503-983-8913 for furnace repair in Sandy, OR. They have a team of licensed technicians and complete sets of equipment to fix your heat exchanger and other HVAC components like no other.