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2. Fan heater - Wikipedia

   en.wikipedia.org/wiki/Fan_heater

   A fan heater, also called a blow heater, is a heater that works by using a fan to pass air over a heat source (e.g. a heating element). [1] This heats up the air, which then leaves the heater, warming up the surrounding room. They can heat an enclosed space such as a room faster than a heater without a fan, [2] but like any fan, create a degree ...

3. Hand warmer - Wikipedia

   en.wikipedia.org/wiki/Hand_warmer

   This type of hand warmer can be recharged by immersing the hand-warmer in very hot water until the contents are uniform and then allowing it to cool. The release of heat is triggered by flexing a small metal disk in the hand warmer, which generates nucleation centers that initiate crystallisation. Heat is required to dissolve the salt in its ...

4. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   Heaters exist for various types of fuel, including solid fuels, liquids, and gases. Another type of heat source is electricity, normally heating ribbons composed of high resistance wire (see Nichrome). This principle is also used for baseboard heaters and portable heaters. Electrical heaters are often used as backup or supplemental heat for ...

5. 15 products to help you stay cool in the extreme heat: 'A ...

   www.aol.com/lifestyle/products-to-help-you-stay...

   The Green Pet Shop Cooling Pet Pad (Large) $60 at Amazon. JISULIFE Portable Neck Fan. $26 at Walmart. See 10 more. In fact, experts have a phrase for surviving extreme heat: "Wetter is better ...

6. 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 ...

7. Ceramic heater - Wikipedia

   en.wikipedia.org/wiki/Ceramic_heater

   A ceramic heater as a consumer product is a space heater that generates heat using a heating element of ceramic with a positive temperature coefficient (PTC). [1][2][failed verification] Ceramic heaters are usually portable and typically used for heating a room or small office, and are of similar utility to metal-element fan heaters.