- Solariums are also used for heating in cold climates.
- They consist essentially of a sunspace or a greenhouse constructed on the south side of the building with a thick wall linking the two.
- Sun rays heat up the air which, by convection and conduction through the mass wall reaches the inside.
- The sunspace can be used as a sit-out during day as it allows solar radiation but keeps out the surrounding cool air. At night, it acts as a buffer space.
Source: Handbook on Energy Conscious Buildings