The main two components are the thermodynamic unit and a solar panel radiator.
a refrigerant gas passes through the solar panel radiator at a temperature of -15 allowing the collection of energy from the sun, rain & wind.
As the fluid is running at a negative temperature it collects the heat from the air by convection.
The fluid is then compressed in the solar box, creating heat.
This heat is transferred to water via a high performance heat exchanger.
Finally, the fluid goes through an expansion valve, evaporates, passes into the aluminium solar panel and the process starts again.
Yes, the larger units can. They can heat whole houses including hot water and even heat swimming pools.These systems require more radiators