You can use solar energy for space heating of homes and businesses. Devices like Flat plate collectors convert solar radiation into heat (thermal energy).
The Flat plate collectors consist of a blackened metal plate with a top transparent sheet of glass cover and a thermal insulation layer underneath it that is heated by the sunlight.


The metal collector absorbs heat from the sun and transfers it to the water or air as a carrier fluid that flows through the plate to the insulated water tank that stores hot or warm water.
This heating water system can also supply your home with hot or warm water flowing through the ceilings or floors tubes.
When the building needs heat, the hot water or air can be transferred by conventional equipment like fans, air outlets, and ducts from these collectors or devices to the building interior spaces.