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2. HVAC control system - Wikipedia

   en.wikipedia.org/wiki/HVAC_control_system

   HVAC (Heating, Ventilation and Air Conditioning) equipment needs a control system to regulate the operation of a heating and/or air conditioning system. [1] Usually a sensing device is used to compare the actual state (e.g. temperature) with a target state. Then the control system draws a conclusion what action has to be taken (e.g. start the ...

3. Self-regulating heater - Wikipedia

   en.wikipedia.org/wiki/Self-regulating_heater

   A positive-temperature-coefficient heating element (PTC heating element), or self-regulating heater, is an electrical resistance heater whose resistance increases significantly with temperature. The name self-regulating heater comes from the tendency of such heating elements to maintain a constant temperature when supplied by a given voltage.

4. Samsung Galaxy A3 (2015) - Wikipedia

   en.wikipedia.org/wiki/Samsung_Galaxy_A3_(2015)

   It was introduced in October 2014, along with the larger and related Samsung Galaxy A5. Samsung Galaxy A3 (2016) is a successor to Samsung Galaxy A3. Both Samsung Galaxy A3 models SM-A300F and SM-A300FU currently run Android 6.0.1 Marshmallow , however all other models can only be upgraded to Android 5.1 Lollipop .

5. What should you set your heat to in the winter? Avoid ... - AOL

   www.aol.com/set-heat-winter-avoid-thermostat...

   Heating and cooling: Check out USA TODAY Homefront for more HVAC tips for your home. Space heaters can help, but use with caution. Many homeowners may be tempted to rely on fireplaces, space ...

6. 15 Most Common Puppy Health Issues and How to Spot Them - AOL

   www.aol.com/15-most-common-puppy-health...

   External Parasites. The second most common problem in most places is fleas. If there are just a few, they can be taken off with a flea comb a few times a day.

7. Fortnite players 'tricked' into unwanted purchases are ...

   www.aol.com/fortnite-players-tricked-unwanted...

   U.S. consumers who were “tricked” into purchases they didn't want from Fortnite maker Epic Games are now starting to receive refund checks, the Federal Trade Commission said this week. Back in ...

8. Induction heater - Wikipedia

   en.wikipedia.org/wiki/Induction_heater

   Induction heating is a non contact method of heating a conductive body by utilising a strong magnetic field.Supply (mains) frequency 50 Hz or 60 Hz induction heaters incorporate a coil directly fed from the electricity supply, typically for lower power industrial applications where lower surface temperatures are required.

9. What is swatting? What to know after threats made to Donald ...

   www.aol.com/swatting-know-threats-made-donald...

   What is swatting? The FBI describes “swatting” as a prank designed to draw an emergency law enforcement response to a hoax victim, often creating a situation where a Special Weapons and ...