Heating systems – Automatic control – Water
Patent
1988-09-23
1990-07-31
Bennet, Henry A.
Heating systems
Automatic control
Water
236 46R, F22B 3500
Patent
active
049444530
ABSTRACT:
A heating system for buildings, comprising a boiler (12), a liquid circulation pump (28) and an electrical control panel (22), incorporates an electronic economizer device (26) arranged to make the circulation pump (28) operate intermittently according to cycles predetermined by the operator through timers (26a, 26b, 26c).
REFERENCES:
patent: 4410135 (1983-10-01), Skyinskus
patent: 4787555 (1988-11-01), Newell, III et al.
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