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2. Forced-air gas - Wikipedia

   en.wikipedia.org/wiki/Forced-air_gas

   The natural gas is fed to buildings from a main gas line. The duct work supplying the hot air (and sometimes cool air if an AC unit is tied into the system) may be insulated. A thermostat starts and stops the furnace to regulate temperature. Large homes or commercial buildings may have multiple thermostats and heating zones, controlled by ...

3. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   This limit controller may shut the furnace off if the blower fails or if something is blocking the air flow. The heated air is then sent back through the home through supply ducts. In larger commercial applications, central heating is provided through an air handler which incorporates similar components as a furnace but on a larger scale.

4. Prepare for the coldest Arctic blast: How to keep your pipes ...

   www.aol.com/prepare-coldest-artic-blast-keep...

   A winter storm emerging from the Rockies is forecast to bring rain, snow and ice to a large part of the U.S., the National Weather Service said Friday, bringing below freezing temperatures with it ...

5. Furnace (central heating) - Wikipedia

   en.wikipedia.org/wiki/Furnace_(central_heating)

   A condensing gas furnace includes a sealed combustion area, combustion draft inducer and a secondary heat exchanger. The primary gain in efficiency for a condensing gas furnace, as compared to a mid-efficiency forced-air or forced-draft furnace, is the capture of latent heat from the exhaust gases in the secondary heat exchanger.

6. Weird winter weather: Cold and snow to the East, but rain and ...

   www.aol.com/weird-winter-weather-cold-snow...

   From the Great Lakes to the East Coast, a "seasonably strong and cold, high-pressure system" will bring below-average temperatures, with parts of the East forecast for "the coldest temperatures ...

7. Government Shutdown Looms: What It Means for Weather Forecasts

   www.aol.com/news/government-shutdown-looms-means...

   “The weather never stops, and neither do meteorologists,” explains Briana Waxman, “Working around the clock, even without a paycheck, to continue collecting essential data, communicating ...