Racold – FPC flat plate solar collector is suitable for residential or commercial solar water heating projects. A flat-plate solar collector is one of three main types of solarcollectors, which are key components of active solar heating systems. A flat-plate collector consists basically of an insulated metal box with a glass or plastic cover (the glazing) and a dark-colored absorber plate. Solar radiation is absorbed by the absorber plate and transferred to a fluid that circulates through the collector