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2. Immersion heater - Wikipedia

   en.wikipedia.org/?title=Immersion_heater&redirect=no

   To a section: This is a redirect from a topic that does not have its own page to a section of a page on the subject. For redirects to embedded anchors on a page, use {{ R to anchor }} instead . When appropriate, protection levels are automatically sensed, described and categorized.

3. Thermal protective aid - Wikipedia

   en.wikipedia.org/wiki/Thermal_Protective_Aid

   A thermal protective aid shall be made of a waterproof material having a thermal conductance of not more than 7,800 W/(m 2 K) and shall be so constructed that, when used to enclose a person, it shall reduce both the convective and evaporative heat loss from the wearer's body. The thermal protective aid shall:

4. Dry suit - Wikipedia

   en.wikipedia.org/wiki/Dry_suit

   The dry suit is a form of exposure suit, a garment worn to protect the user from adverse environmental conditions.The two most common purposes are to insulate the wearer against excessive heat loss, and to isolate the wearer from direct contact with a liquid environment during immersion or repeated multi-directional contact with bulk liquids or spray.

5. Aquarium heater - Wikipedia

   en.wikipedia.org/wiki/Aquarium_heater

   An aquarium heater is a device used in the fishkeeping hobby to warm the temperature of water in aquariums. [1] Most tropical freshwater and marine aquariums are maintained at temperatures that range from 22 to 30 °C (72 to 86 °F). [1] [2] [3] The types include glass immersion heaters and undergravel heating. There are also heating mats that ...

6. Electric heating - Wikipedia

   en.wikipedia.org/wiki/Electric_heating

   Small domestic immersion heater, 500 W. An immersion heater has an electrical resistance heating element encased in a tube, placed in the water (or other fluid) to be heated. The heating element might be inserted directly into the liquid, or installed inside a metal pipe to protect against corrosion and facilitate maintenance.

7. Water heating - Wikipedia

   en.wikipedia.org/wiki/Water_heating

   Such water heaters are often fitted with an auxiliary electrical immersion heater for use if the boiler is out of action for a time. Heat from the space-heating boiler is transferred to the water heater vessel/container by means of a heat exchanger, and the boiler operates at a higher temperature than the potable hot water supply.