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  2. The Best Portable Heaters Will Warm Any Room of the House - AOL

    www.aol.com/lifestyle/warm-room-house-best...

    Amazon Basics 500-Watt Ceramic Small Space Personal Mini Heater, best portable heater Amazon Basics 500-Watt Ceramic Small Space Personal Mini Heater Price: $18.29

  3. HVAC control system - Wikipedia

    en.wikipedia.org/wiki/HVAC_control_system

    The program features include time schedules, set points, controllers, logic, timers, trend logs, and alarms. The unit controllers typically have analog and digital inputs that allow measurement of the variable (temperature, humidity, or pressure) and analog and digital outputs for control of the transport medium (hot/cold water and/or steam).

  4. Time switch - Wikipedia

    en.wikipedia.org/wiki/Time_switch

    A time switch (also called a timer switch, or simply timer) is a device that operates an electric switch controlled by a timer. Intermatic introduced its first time switch in 1945, which was used for "electric signs, store window lighting, apartment hall lights, stokers, and oil and gas burners." A consumer version was added in 1952.

  5. Shop the best deals at Walmart this weekend in their secret ...

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    Beautiful 6-Quart Programmable Slow Cooker. $50 $69 Save $19. See at Walmart. ... Turn up the temperature with this bestselling portable space heater. Thanks to its compact size, you can keep it ...

  6. Oil heater - Wikipedia

    en.wikipedia.org/wiki/Oil_heater

    An oil heater, also known as an oil-filled heater, oil-filled radiator, or column heater, is a common form of convection heater used in domestic heating. Although filled with oil , it is electrically heated and does not involve burning any oil fuel ; the oil is used as a heat reservoir (buffer).

  7. Programmable thermostat - Wikipedia

    en.wikipedia.org/wiki/Programmable_thermostat

    Honeywell electronic thermostat in a store. Heating and cooling losses from a building (or any other container) become greater as the difference in temperature increases. A programmable thermostat allows reduction of these losses by allowing the temperature difference to be reduced at times when the reduced amount of heating or cooling would not be objectionable.

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