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2. Gas heater - Wikipedia

   en.wikipedia.org/wiki/Gas_heater

   Upright non-flued liquefied petroleum gas heater, 1970s A wall mounted gas heater that runs on either propane or natural gas. A gas heater is a space heater used to heat a room or outdoor area by burning natural gas, liquefied petroleum gas, propane, or butane. Indoor household gas heaters can be broadly categorized in one of two ways: flued or ...

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:

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

   www.aol.com/news/safely-restart-wall-heater-help...

   Some people may be turning on their heater for the first time this season. Here's how to make sure it's working properly, and how to seek help if it's not. How to safely restart your wall heater ...

5. Flame supervision device - Wikipedia

   en.wikipedia.org/wiki/Flame_supervision_device

   Regular testing of FSD is a part of routine maintenance for gas appliances. [3] Other safety devices may be fitted in addition to an FSD. One type of these are the Vitiation Sensing Devices, [4] that detect an adequate supply of oxygen for efficient combustion, thus avoiding the production of poisonous carbon monoxide. As well as detecting a ...

6. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   Sealed systems offer an alternative to open-vent systems, in which steam can escape from the system, and gets replaced from the building's water supply via a feed and central storage system. Heating systems in the United Kingdom and in other parts of Europe commonly combine the needs of space heating with domestic hot-water heating.

7. Flame detector - Wikipedia

   en.wikipedia.org/wiki/Flame_detector

   A flame detector is a sensor designed to detect and respond to the presence of a flame or fire, allowing flame detection.Responses to a detected flame depend on the installation, but can include sounding an alarm, deactivating a fuel line (such as a propane or a natural gas line), and activating a fire suppression system.

8. Forced-air gas - Wikipedia

   en.wikipedia.org/wiki/Forced-air_gas

   Each room has an outlet from the duct system, often mounted in the floor or low on the wall – some rooms will also have an opening into the cold air return duct. Depending on the age of the system, forced-air gas furnaces use either a pilot light or a solid-state ignition system (spark or hot surface ignition) to light the natural gas burner. [3]

9. Flashover - Wikipedia

   en.wikipedia.org/wiki/Flashover

   A lean flashover (sometimes called rollover) is the ignition of the gas layer under the ceiling, leading to total involvement of the compartment.The air–fuel ratio is at the bottom region of the flammability range (i.e. lean).