the high pressure compact solar water heater is a new type of solar water heater which adopts adcanced heat pipe and all glass vacuum tube technology.highly eficient vacuum tube absorbe heat from sunligh and heat pipe transfers heat to the condenser end of itself. condersor indirectly contacts with water through a copper cap and it boils water by releasing heat gained rom vacuum tube. the available size of the tank ranges from 150 L to 250L .