Savings between 14.5 and 16 SEER ratings
Is there any rule of thumb or calculation for determining the payback of different SEER ratings on AC units?
I am deciding between a 14.5 SEER and a 16 SEER central air unit. After tax credit it is a price difference of $300 ($600-$300 tax credit).
I live in So. Cal. and my average electricity cost comes out to be about $0.19/ kwh. I only use the AC about 10 days per month during the 4 summer months.
So is it worth $300 to get the higher efficiency unit?