61% less usage
I just received my first full month with the new heat pump, attic unit, etc. I really squirmed at the price, but decided this should be last time I ever have to do this - so do it correctly.
The first month of usage and the electric usage was down 61% less than month before. The temperature outside was slightly higher this bill than the last one. On the particial bill it was down 27% usage in one week.
I read everything and made far to big of a deal in selecting what I did - but I'll take 61% less usage anyday. This means it will pay for itself in 5 years. Guess the advertising was correct - it said between 50 - 65% less, it was correct.