Radiant Barrier
Insulation is everything to saving energy. Put it under a new roof. Line the inside of your walls. Lay it over the joists in the attic. It radiates the heat back in during the winter, and away from the house during the summer.
This comes in a 125 foot by 4 foot roll, 500 square feet for $200

Brac Water reuse system
Why flush clean drinkable water into the sewer. This is a gray water recycling system that flushs your toilet and waters your yard with wash water. This system is $2000. Plus flexible plumbing connections and plumber costs.

|
|