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

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   Turn it to the off setting and wait about 5 to 10 minutes for any excess gas to dissipate, then turn the switch to pilot to trigger the flow of gas. Hold the reset button or use a long match to ...

3. How to safely restart your wall heater — and get help if needed

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   Lighter Side. Medicare. new

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. Thermal cutoff - Wikipedia

   en.wikipedia.org/wiki/Thermal_cutoff

   Another type of thermal switch is a PTC (Positive Temperature Coefficient) thermistor; these thermistors have a "cutting off" temperature at which the resistance suddenly rises rapidly, limiting the current through the circuit. When used in conjunction with a thermistor relay, the PTC will switch off an electrical system at a desired temperature.

6. 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]

7. Residual-current device - Wikipedia

   en.wikipedia.org/wiki/Residual-current_device

   A residual-current device (RCD), residual-current circuit breaker (RCCB) or ground fault circuit interrupter (GFCI) [a] is an electrical safety device, more specifically a form of Earth-leakage circuit breaker, that interrupts an electrical circuit when the current passing through line and neutral conductors of a circuit is not equal (the term residual relating to the imbalance), therefore ...

8. Flameless ration heater - Wikipedia

   en.wikipedia.org/wiki/Flameless_ration_heater

   In 1980, Natick learned that the U.S. Navy had developed a magnesium-iron alloy powder for buoyancy devices and heated diving vests. This was more cost efficient, so the University of Cincinnati was contracted to develop it into a prototype MRE heater, which was called the Dismounted Ration Heating Device (DRHD). The inventors later ...

9. Own a pool in Southern California? New air-quality rule ...

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   The South Coast Air Quality Management District's governing board voted 9-1 to effectively phase out certain kinds of natural-gas-fired water-heating equipment in homes and businesses across its ...