Water heater for preformed spas and baptismal pools

Details Water heater for preformed spas and baptismal pools Water heater for preformed spas and baptismal pools

1988-02-17

1989-08-08

Bartis, Anthony

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

4493, 68 16, 219297, 219308, H05B 102, F24H 110, F04B 2100, E04H 320

Patent

active

048555690

ABSTRACT:
An electric water heater for preformed spas and baptismal pools includes an elongated horizontally disposed tubular heat exchanger having a water inlet in a first end wall and a water outlet adjacent the opposite second end wall and defining a water flow path provided with an electric heating element extending longitudinally therethrough from the first end wall for heating the water. A pump having an inlet communicating with the flow path through the second end wall has a first outlet directing some of the water from the flow path to the heat exchanger outlet in a direction away from the heat exchanger to provide a venturi action causing additional water to flow directly out the heat exchanger outlet without passing through the pump and a second outlet which directs a small counterflow of water into the heat exchanger towards the first end wall to break up and keep in circulation scale and sediment. The second pump outlet is arranged to drain water from the pump when the heat exchanger is drained through the inlet in the first end wall.

REFERENCES:
patent: 2377027 (1945-05-01), Morgan et al.
patent: 2419273 (1947-04-01), Marquette
patent: 2914935 (1959-12-01), Samsel
patent: 4594500 (1986-06-01), Wright

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