The house is everything we wanted and more. It was easily worth the time, frustration, and yes the neverending supply of "yellow invoices"….After three years there are still no drafts in the house, fire place heats the house nicely. My bills are less than 1/3 of the neighbors. We got a check from Ameren for 4,400.00 dollars for selling them my nonpolluting energy to offset their coal plants. Got a copy of that check framed. When only daughter is at the house, we average $54.00 for everything (water, heat, non-ending TV in her room etc). Solar hot water works great. Thanks for your time and patience.