passive solar heating systems. Passive solar heating refers to the use of a building's architectural design with well-oriented windows and walls to capture energy as heat.
Active solar heating requires certain specially-designed solar collection units as well as storage components to raise captured energy density level. There is a wide selection of renewable fuels as well as technologies of the "solar thermal" kind currently available for homeowners to choose from, although each has advantages and disadvantages. Although there is an almost infinite number of configurations, the more economic ones are:
- Passive solar heating
- Active solar air heating
- Solar water heating
- Solar pool heating
Active solar space heating
- Heating with renewable fuels
Space cooling systems
- Earth Energy with Geo-exchange