Aquarium heater and cooler

Details Aquarium heater and cooler Aquarium heater and cooler

A - Human Necessities

01

K

A01K 63/06 (2006.01) F25B 21/04 (2006.01)

Patent

CA 2101379

ABSTRACT OF THE DISCLOSURE A combination aquarium heater and cooler apparatus is provided which utilizes a feedback circuit to automatically maintain the fluid in an ecosystem at an operator set desired temperature. The feedback system scheme takes advantage of a thermo-electric heat pump component in combination with a high gain amplifier in order to achieve the desired result of maintaining the ecosystem at a temperature which is nearly constant regardless of other undesirable spurious heat inputs or losses to the ecosystem. -12-

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