Heat exchanger coil assembly within a tank and fluid in the coil communicating with a solar panel for heating fluid in the tank

摘要

A heat exchange coil assembly fitted through an opening in a tank 7 heats a fluid in the tank 7 by passing a fluid that is heated by solar radiation through coils 1, 2 of the assembly. The coil may have a smaller diameter coil 1 and a larger diameter coil 2 larger than the hole so that it may be fitted in the tank 7 by screwing into the tank 7. The coil assembly 1 may have an immersion heater or additional heat exchange coil 4 and a thermostat 5. The coils may be made from any suitable material, diameter or material thickness and any suitable number of coils to define any suitable length may be used. The coil assembly may be used in existing or new tanks and may be removable to permit serving and maintenance.