I have attached three specific files showing how to heat and cool your home or business. #1, Passive Solar-How to do create and TODAY"S COST. #2. Complete process to create your OWN passive heating and PASSIVE COOLING. #3. Cool & Heating 25 years ago. LOOK at the pictures on Anachronisms page of the five projects I created and built these projects to maintain interior temperature of 70 degree year round. MY OPERATING COSTS ARE LESS THEN $2 PER DAY TO HEAT BUILDINGS WITH 225,330 CUBIC FEET OF SPACE, THE SAME AS "14" 1800 SQ. FOOT HOMES!! The cost for 1 house would be $00.14 a day to either heat or cool you home !!! My original cost in burlington was a total of $80 for the complete Passive Solar HEATING SYSTEM AND HAS NOT REQUIRED ANY REPAIRS IN 25 YEARS. Check the 3 associated files showing how to create into any home or business with the typical gable roof system. Sincerely Anachronism. EVERYBODY CAN HEAT OR COOL THEIR HOMEOR BUSINESS FOR PENNY'S A DAY.