7 year old house. We plan to live in it for 5+ years
Rheem AC Unit - working fine. 10 SEER Rheem Furnace - working fine. Kind of loud. Rheem Coil(warranty is expired I think, its past 5 years) - Leaking, rusted more than 50% up the coil, moisture on the floor from coil. 10- SEER
Last year we had an HVAC company come out and refill our outdoor unit with refrigerant. This year come blazing summer, same thing happened, system wouldn't keep the temperature and tech came out again and searched for leak ($450), repaired 1 (of many probably) leak. System worked for about a month. It's August, even more hot and our system couldn't keep the temp again. Tech came out and said that it would be best to replace evaporator coil. Estimate was for $1300-$1400. I also got another quote from a company #2 , same price. 3rd quote was for $600-$800 for replacement.
I also had the first company give me a price for installing a new 14- seer outdoor unit (AC or HP) and new 14-seer evaporator coil. $4400 for AC+Coil, $5100 for HP+Coil. Company #2 gave similar quote for replacement.
I'm thinking it would be better to upgrade the system now, in case the 10-SEER unit outside has problems in the future and we would have to replace everything again and be down $600-$1400. Also, from what reading I've done, these 10-SEER rheem coils seem to leak, but could that be because of installers and not equipment?
Company #1 sells Trane. Company #2 sells York. Company #3 sells Rheem
So replace evaporator coil or install more efficient unit? Should I get a HP or AC unit? Should I replace furnace/air handler if I replace AC Unit and Coil?