The appearance of a black carbon buildup on the furnace interior is caused by a unit that does not burn cleanly.
Rheem furnace cracked heat exchanger.
Rheem tells my furnace guy no heat exchangers are available therefore they will provide me with a several hundred dollar discount on a new furnace.
In fact replacing a furnace heat exchanger can take up to 8 hours and can cost anywhere from 2 000 to 3 500.
All pros listed are independent dealer owned.
Cracked heat exchanger oxygen reading rises while furnace is heating up at time 1 09 burners are on and blower is running.
Every cracked heat exchanger needs to be replaced either by replacing the heat exchanger itself or by replacing the entire furnace.
If it s older than 10 to 12 years old you may want to go with replacing the entire furnace.
All pros listed are independent dealer owned.
If the furnace is generally in good condition and operates at a good efficiency but has suffered a cracked heat exchanger one might consider a heat exchanger replacement when the cost of the total job is about half the cost of a new furnace and of course also if the furnace heat exchanger remains covered by the manufacturer s warranty.
Soot can collect when combustion is incomplete.
Rheem manufacturing ranks as the global leader in the manufacture of high quality sustainable and innovative water heaters tankless water heaters air conditioners furnaces pool heaters and hvac systems for residential and commercial applications and is a full member of ahri the air conditioning heating refrigeration institute.
This can be caused by burners that are improperly adjusted or a cracked heat exchanger.
Yeah we know that s crazy expensive.
If the oxygen reading rises to abnormal levels once the lower turns on this is because the blower is pushing air into the combustion chamber through the crack in the heat exchanger.
Furnaces typically last 15 to 20 years.
Jose de la portilla technical training manager at hvac learning solutions discusses a simple and easy way to test a furnace heat exchanger that may be crac.
The furnace is a rged 10erajs.
When faced with that decision something to consider is the age of your unit.
Rheem furnace has a lifetime warranty on their heat exchanger to the original owner.