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  2. 10 Signs Your Heater Isn’t Working as Well as It Could (and ...

    www.aol.com/10-signs-heater-isn-t-200000044.html

    A blockage could prevent the heater's air from entering the home, causing temperature inconsistencies. ... Turn it to the off setting and wait about 5 to 10 minutes for any excess gas to dissipate ...

  3. Pilot light - Wikipedia

    en.wikipedia.org/wiki/Pilot_light

    In natural gas furnaces, water heaters, and room heating systems, a safety cut-off switch is normally included so that the gas supply to the pilot and heating system is shut off by an electrically operated valve if the pilot light goes out. This cut-off switch usually detects the pilot light in one of several ways: A flame rectification device. [2]

  4. Do I need to worry about space heaters? Here’s what experts ...

    www.aol.com/lifestyle/worry-space-heaters...

    If your space heater is five or more years old, it's a good idea to check to make sure it has modern safety features like automatic shut-off if the device is tipped over or overheats, Lambert says ...

  5. Crankcase heater - Wikipedia

    en.wikipedia.org/wiki/Crankcase_heater

    Some air conditioning equipment manufacturers install crankcase heaters either in the compressor (insertion type), or mount them externally around the base of the compressor (bellyband type). The two wires of the heater are wired directly to the input side of the contact from the main power supply, and power is always supplied to the heater.

  6. Murexide - Wikipedia

    en.wikipedia.org/wiki/Murexide

    Murexide (NH 4 C 8 H 4 N 5 O 6, or C 8 H 5 N 5 O 6 ·NH 3), also called ammonium purpurate or MX, is the ammonium salt of purpuric acid.It is a purple solid that is soluble in water. The compound was once used as an indicator reagent. [1]

  7. Electric heating - Wikipedia

    en.wikipedia.org/wiki/Electric_heating

    A fan heater, also called a forced convection heater, is a kind of convection heater that includes an electric fan to speed up the airflow. They operate with considerable noise caused by the fan. They have a moderate risk of ignition hazard if they make unintended contact with furnishings.

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  9. Fault indicator - Wikipedia

    en.wikipedia.org/wiki/Fault_indicator

    In electric power distribution networks, a fault indicator is a device which provides visual or remote indication of a fault on the electric power system. Also called a faulted circuit indicator (FCI), [1] the device is used in electric power distribution networks as a means of automatically detecting and identifying faults to reduce outage time.

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