Flat Plate Collector (FPC) having different categories :
i. Pressurized system
ii. Non-pressurized system
iii. Heat exchanger -pressurized (Optional)
iv. Forced circulation system
Solar flat plate collector is a device that converts the radiant solar energy from the sun into heat. it collects, or captures solar energy and uses that energy to heat water in the home for bathing, washing and heating, and can even be used to heat outdoor swimming pools and hot tubs. for most residential and small commercial hot water applications, the solar flat plate collector tends to be more cost effective due to their simple design, low cost, and relatively easier installation compared to other forms of hot water heating systems. also, solar flat plate collectors are more than capable of delivering the necessary quantity of hot water at the required temperature.