An apparatus for power load-shedding is disclosed which has an auxiliary thermostat disposed in the conditioned space for controlling the CN-OFF cycling function of a space conditioning apparatus during a load-shedding interval. The auxiliary thermostat includes an external communication signal receiver...http://www.google.ca/patents/US4389577?utm_source=gb-gplus-sharePatent US4389577 - Apparatus for power load-shedding with auxiliary commandable thermostat
