I had a new HVAC system installed 4 years ago. I went with Lenox, even though it cost more the SEER rating was higher and the warranty was really good compared to other brands. I keep my a/c at 76* and my bill averages $155.00 per month. In the winter it drops a bit. I should tell you that I have a heat pump with a secondary a/c if needed, which I have never even turned on yet. I’m the only one living in my house. I am renting a condo in Hawaii to be with my son for a year beginning November 15. My son found me a 2000 ft. beachfront condo for $2800 month and fully furnished with everything I will need to go to housekeeping. I pay utilities, insurance and maintenance fee.
I don’t know if I should hire a house sitter for a year or leave it sit. I’m not crazy about having a stranger knocking about inside my home for a year. The cops said they will keep an eye on it for me, but I am uncertain.