A cracked heat exchanger allows air from the furnace blower to interfere with the flame causing it to flutter or even roll out.
Cracked oil furnace heat exchanger.
Even though your furnace may look and seem fine dangerous gases could leak into your home and seriously affect even kill your family members.
The heat exchanger on a furnace is the section that keeps the combustion chamber and the breathing air separate 3.
If a heat exchanger becomes cracked then your heating system will not perform as it should.
Remove it from the furnace and examine it in the light.
If your gas furnace is about that age the chances are high that the heat exchanger can crack.
There are certain signs to look for to determine if the heat exchanger has been.
Broken and leaking heat exchangers are responsible for about 1 500 deaths per year in the united states and many more people are poisoned by exposure to toxic gasses that go unfiltered by defective heat exchangers.
The combustible gas will become hotter as it accumulates in the exchanger.
Diagnosis of a heat exchanger crack typically starts with a no heat service call.
When a heat exchanger becomes damaged and the combustion fumes and gases mix with the clean air.
Consequently air temperature becomes hotter.
This trips a safety switch and shuts down the furnace.
Combustion gasses and carbin monoxide can be.
A cracked heat exchanger in a gas furnace is a serious safety issue.
A damaged heat exchanger in a gas furnace is potentially dangerous to a home s occupants and should not be ignored.
Potential dangers of a cracked heat exchanger.
Operating a furnace with a cracked heat exchanger can be very dangerous.
Look for signs that the metal has been overheated or symptoms of long term metal fatigue.
Examine the crack itself.
Step 1 check the furnace heat exchanger.
Here is a video of a crack in a heat exchanger we found during a oil furnace cleaning and tune up in yardley pa.
Furnaces are equipped with a safety feature called a flame rollout limit switch.
A heat exchanger is made of thin metal and as it heats up from the combustion of the furnace it transfers the heat to the air being distributed through the house by the blower 3.
Signs your furnace has a cracked heat exchanger.
So you need to get a replacement ready to avoid inconveniences if it breaks.
Proper diagnosis of a failed or cracked heat exchanger.