The american gas association has even put this in writing they say any visible crack or hole is reason. This one takes apart the ruudrheem heat exchanger to inspect the. We give free second opinions on cracked heat exchangers. Danger of a furnace with a cracked heat exchanger servicemax. The your heat exchanger is cracked so your furnace must be. A heat exchanger crack in a residential furnace large enough to cause trouble usually upsets a steady flame or causes the burner flames to roll out the front of the. This video is about the your heat exchanger is cracked so your furnace must be replaced scam. The heat exchanger on a furnace is the section that keeps the combustion chamber and the breathing air separate.
Corrosion because of reaction between the combustion gas and the metal often because of improper venting can also weaken the metal to the point where cracks form. They observe that their furnace is running just fine and. A cracked heat exchanger allows air from the furnace blower to interfere with the flame causing it to flutter or even roll out. Homeowners who heat their homes with propane gas, natural gas, or fuel oil are vulnerable to potential health problems. According to exclusive buyer realty, flames that flicker or lean more as the house fan comes on a couple of minutes after ignition, are possible signs of a cracked heat exchanger. A cracked heat exchanger allows air from the furnace blower to interfere with the flame. The discharge air coming out of the furnace and moving through the duct work will be somewhere between 40 and 90 degrees hotter than the return air. Furnace heatexchanger crack signs your furnace has one. Dangerous cracked heat exchangers in furnaces fossil fuels and cracked heat exchangers. The combustible gas will become hotter as it accumulates in the exchanger.
Ive heard that penetrating oil, such as wd40, will get through the cracks. If you find that your furnace heat exchanger has trouble getting enough heat and power, then you may find that it has developed a crack or hole. This trips a safety switch and shuts down the furnace. Anyone who has an oil or gas boiler, oil or gas furnace, gas logs. The cause of cracked heat exchangers avoid this common scam. In a home heating system, the exchanger heats the air that makes its way throughout the ventilation system.
Through this crack, combustion fumes can escape from the exchanger, and can build up in the room. Corrosion andor cracks on other furnace components. A cracked heat exchanger can cause harm to your family and house. Beware of an unethical technician who finds a crack with a camera on a furnace that seems to be running just fine. Because the metal of the heat exchanger expands and then contracts as it heats and cools, the stress may eventually cause a crack to form on the exchanger. Many homeowners utilize propane, fuel oil, or natural gas to power their. Often when cracks are present in a heat exchanger, soot from the combustion process will seep through and discolor the metal. If you or other family members experience continual recurring headaches or flu like symptoms, this could indicate a cracked heat exchanger. If you see evidence of soot, which is actually a black carbon buildup, on the inside of the furnace, its a sign your furnace isnt burning cleanly. If you or other family members experience continual recurring headaches or flulike symptoms, this could indicate a cracked heat exchanger. This video is about the your heat exchanger is cracked so your furnace must be replaced. This will be detected with a combustion gasses tester. If a heat exchanger becomes cracked, then your heating system will not perform as it should. Some people choose to live in denial of the seriousness of a cracked heat exchanger.
Incomplete combustion usually causes an increase in soot. Many companies use infrared light to detect cracks, but a flashlight is sufficient for more noticeable cracks. Signs and symptoms of a cracked gas furnace heat exchanger. A burner with a moving yellow flame can mean that the burner is dirty or that the heat exchanger is cracked. If a heatexchanger is cracked, air forced into the combustionchamber will cause the oxygen reading in the furnace s exhaust to rise to abnormal levels. The cause can be improperly adjusted burners or a cracked heat exchanger.
782 270 237 1350 1340 1196 434 1283 631 400 1030 1268 1380 628 905 1278 200 626 927 1101 234 646 1218 465 919 1096 1170 334 673 1522 1235 414 488 996 1357 249 1173 100 220 307