SOLAR HEAT HOW WELL DOES IT WORK?

      Passive solar easily produces heat when snowing during the day, if sunlight is present and or snowing outside.  My first "Totally Passive System" in Burlington, Wash. in 1984 produced heat of 67 degree's at 2:30 in the afternoon.  I went out to look at the condition's and it was snowing and three inches of snow had accumulated on the roof!  I have passively heated and cooled 5 projects in washington state.  Projects located from Bellingham, Wa. to Vancouver, Wa.  In my Vancouver project, we have passively "Heated and Cooled" since 1989.  You need an attic and the ability too draw, either the heat or cooling from this space depending on how complicated you desire or need.
     Building my fifth project in Vancouver, I created an automatic "Cooling and Heating" system inside a building of 144' x 74' and two-stories high.  THE average "Natural Gas" cost to supplement my system to heat entire building was $2.00 per day.  Is this "cheap" enough for YOU.  Anachronism