Composite natural energy water heater

The utility model discloses a composite natural energy water heater, and belongs to the technical field of water heaters. The technical problem to be solved is to provide a composite natural energy water heater which can heat stored water no matter whether the sun exists or not, and is safe, energy-saving, environment-friendly and high in heating efficiency. The adopted technical scheme is as follows: the utility model discloses a composite natural energy water heater. The solar water heater comprises a support, a heat collecting pipe, a cold exhaust plate, a shell, a water storage bin and anair energy assembly. The shell is arranged at the top end of the support. The shell is divided into a water storage area and an extension area through a partition plate. The water storage bin is arranged in the water storage area of the shell. A plurality of heat collecting pipes and a cold row plate are fixedly installed between the shell and the support. The upper end of each heat collecting pipe is communicated with th