초록 ▼

A compact tankless water heater of modular configuration to accommodate a range of potential demands is disclosed. A heat transfer chamber is divided into subchambers, each of which may may mount more than one heating element. Notched passageways at the top of each dividing wall allow water passage

A compact tankless water heater of modular configuration to accommodate a range of potential demands is disclosed. A heat transfer chamber is divided into subchambers, each of which may may mount more than one heating element. Notched passageways at the top of each dividing wall allow water passage between chambers, and a plurality of temperature sensors act in concert with a flow sensor and microprocessor control of the heating elements to maintain a constant set point output water temperature.

대표청구항 ▼

1. A tankless water heater comprising a main enclosed housing divided into a plurality of heating chambers separated by rib walls, each rib wall having a notched opening at a top side and at a bottom side to permit water flow between adjacent chambers;said housing further including an exit chamber h

1. A tankless water heater comprising a main enclosed housing divided into a plurality of heating chambers separated by rib walls, each rib wall having a notched opening at a top side and at a bottom side to permit water flow between adjacent chambers;said housing further including an exit chamber having a top side and a bottom side adjacent one of the heating chambers and separated therefrom by a rib wall having a notched opening at the top side; an inlet aperture in a bottom surface of the housing, placed directly below one of the rib walls so that incoming water is distributed simultaneously into adjacent heating chambers; at least one heating element placed in the heating chamber and connected by a circuit to a variable energy source; means for measuring incoming water temperature and outgoing water temperature; means for measuring water flow through the device; and control means for activating the heating elements in response to the measured incoming and outgoing water temperature and flow rate to maintain a predetermined water temperature.