I've received bids on a new HVAC system for an 1814 sq. ft. single-story home in Southern California.
I don't plan to use the A/C much, so a 10 seer would make sense. However, I'm concerned about longevity and availability of refrigerant, parts, etc. in the future, and how much more expensive they may be. Although I'm getting a 10-year warranty, I want the system to last well beyond that (I'm hoping for 30 years). Would it be wise to get a 10 seer at this time?
The only contractor who did a manual J calc recommends the Lennox G60 variable speed because the furnace will be in a closet next door to a bedroom, and I want something quiet. Is it worth it or is it hype? We listened to a CD comparing furnaces and the variable speed was louder on one speed. I've read reports of the shut-down motor being louder as well. Any truth to that?
Thank you in advance -- sorry for so many questions!