Passive Solar Heating
Although
passive solar heating is best incorporated into a building during the
initial design, the concepts of passive solar heating can also be used
when remodeling or adding to your home or small business. And while
passive systems are simpler than active systems, they may be impractical
for a variety of reasons (e.g., adding or building a sunspace may not be
possible due to shading).
Window design (glazing choice in particular) is a critical factor for determining the effectiveness of passive solar heating in a home. In heating climates, large south-facing windows are used, as these have the most exposure to the sun in all seasons.