agsnchunt
Old Mossy Horns
The compressors are made by three companies mainly. It doesnt matter what kind you get. Alot more important is how it is installed. I have seen systems from every company last 25 years and I have seen DOA's from every company.
It may surprise you that with everyone promoting high SEER units I installed a single stage 13 SEER package unit and a 13 SEER split unit on my house in 2011 from Goodman. They have a 10 year parts warranty and when the warranty is out if my fan quits I can go to the parts house in town and bit a new one for around 100-150. The new "efficient"units have variable speed fans and two stage compressors. After your warranty is out and you have to replace one you just lost every dime you saved with its efficiency. I also find the lower SEER units last longer. I can replace both of these units again and still pay less than one of the 20 SEER super duper models.
The heat exchanger is what your 20 year warranty is on Conman. The rest of the units parts are ten year like everybody else usually. I have never had a question asked to me about any replacement part on a Goodman Firefly. If its registered they send a new part.
Good luck guys! They definitely are not made like they used to be.
Definitely replace both ends if it is an R22 unit.
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I have a 12yo, single Goodman heat pump w/ gas heat, running 2 zones and it's been pretty good. Heat exchanger rusted out under warranty and was replaced for free. One of my buddies has a theory that it's better to undersize and make it run more often.