Definitions for "Passive solar home"
A passive solar home uses energy efficient architect to take advantage of solar energy.
a solar collector by it very design
a solar collector by standard heating system unless you are willing to don sweaters
A house that stays warm or cold passively, using natural heat flows from sunlight, wind and the earth, without "active" devices like air conditioners or heaters.
an exceptional home, differing from standard construction in the thermal integrity of its shell and its well-considered design