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2. Radiant heating and cooling - Wikipedia

   en.wikipedia.org/wiki/Radiant_heating_and_cooling

   Radiant heating and cooling is a category of HVAC technologies that exchange heat by both convection and radiation with the environments they are designed to heat or cool. There are many subcategories of radiant heating and cooling, including: "radiant ceiling panels", [ 1 ] "embedded surface systems", [ 1 ] "thermally active building systems ...

3. Split-phase electric power - Wikipedia

   en.wikipedia.org/wiki/Split-phase_electric_power

   120 V circuits are the most common, and used to power NEMA 1 and NEMA 5 outlets, and most residential and light commercial direct-wired lighting circuits. 240 V circuits are used for high-demand applications, such as air conditioners, space heaters, electric stoves, electric clothes dryers, water heaters, and electric vehicle charge points.

4. 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.

5. Electric heating - Wikipedia

   en.wikipedia.org/wiki/Electric_heating

   Circulation heaters or "direct electric heat exchangers" (DEHE) use heating elements inserted into a "shell side" medium directly to provide the heating effect. All of the heat generated by the electric circulation heater is transferred into the medium, thus an electric heater is 100 percent efficient. Direct electric heat exchangers or ...

6. Vitamin D may not prevent fractures or falls in older adults ...

   www.aol.com/vitamin-d-may-not-prevent-102300100.html

   Vitamin D supplements, with or without calcium, are important for overall health. However, vitamin D supplements have no effect on preventing falls or fractures in older adults, according to the U ...

7. Dry January: What is it and how beneficial can giving up ...

   www.aol.com/dry-january-beneficial-giving...

   The Dry January campaign was started in 2013 by Alcohol Change U.K., a charity focused on reducing alcohol harm. What are the health benefits of Dry January? While research on how quitting alcohol ...