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2. Is your heater making you sick? How to avoid cold-like ...

   www.aol.com/lifestyle/heater-making-sick-avoid...

   Turning on the heat for the first time this season can bring on cold-like symptoms. ... there is dust that has accumulated on the heat exchanger over the summer that is burned off the first time ...

3. Furnace (central heating) - Wikipedia

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

   A single-stage furnace has only one stage of operation, it is either on or off. This means that it is relatively noisy, always running at the highest speed, and always pumping out the hottest air at the highest velocity. One of the benefits to a single-stage furnace is typically the cost for installation.

4. 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.

5. Forced-air - Wikipedia

   en.wikipedia.org/wiki/Forced-air

   A simple electric heating element warms the air.; When the thermostat calls for heat, blower and element come on at the same time. When thermostat is "satisfied", blower and element shut off.

6. Crankcase heater - Wikipedia

   en.wikipedia.org/wiki/Crankcase_heater

   A crankcase heater is an electrical component in a compressor in an air-conditioning system, heat pump system, or chiller system. The crankcase heater is normally on all the time, even when the unit is not running, though temperature sensors and set points may turn it off when not needed.

7. AOL Mail

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

8. Freeze stat - Wikipedia

   en.wikipedia.org/wiki/Freeze_stat

   Air coil freeze stat. A freeze stat is a temperature sensing device for HVAC that monitors a heat exchanger to prevent its coils from freezing.Freeze stats can be used on both refrigerant-to-air, and refrigerant-to-liquid type heat exchangers and serve different purposes with similar goals for each.

9. White House defends funding freeze amid chaotic rollout

   www.aol.com/trumps-federal-funding-freeze...

   The memo set off a flurry of confusion and panic Tuesday among nonprofit organizations, which said they were unable to access federal government systems used to withdraw previously awarded federal ...