Jake Kring. 02-20-25. I arrived for a 43 year old furnace not heating. I spoke with the homeowner and she explained that the system will run but cycled off for a long period of time. I inspected the system and found the heat exchanger to have fractures in the furnace heat exchanger. I explained that the model number on this system is halfway missing but if we could even find a heat exchanger for this furnace it would be a long wait time and the cost of replacing the furnace vs repairing the furnace would be about the same cost and we would have a long wait time if we could find a heat exchanger. We discussed the warranty on the new furnace replacement and a full system replacement and we decided to only go with the furnace replacement at this time. She wants to keep her 41 year old condenser and did not want to take advantage of the full system replacement with a free furnace. I showed her the difference in the cost and how much she would be saving at this time and we only decided to r