Gas-Fired Water Heater with Separable Heat Exchanger Or Detachably Connected External Water Heater

摘要

A water heater, particularly but not exclusively for domestic use, is herein described and having removably secured thereto an external modulating gas power burner to heat the water in a separate tank portion. The two are easily separable from one another for service, repair or interchange. The hot water or a mixture thereof from the burner is circulated in a heat exchanger to transfer the heat to the tank water circulated from the water tank through the heat exchanger.

主权项

1. A water heater comprised of a water tank for the containment of heated water and an external modular water heater detachably connected to said tank to heat water therein, said tank having a water inlet and a hot water outlet in a top portion of said tank, a water supply connecting means and a heated water return connecting means in a top portion of said water tank, said water supply connecting means having a water supply conduit extending to a predetermined location in said water tank, said heated water return connecting means having a hot water return conduit, said modular water heater having a gas-fired burner for heating a fluid circulated in a heat exchanger for heat transfer communication with cooler water circulating between said water supply connecting means and said heated water return connecting means.