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2. Aquarium heater - Wikipedia

   en.wikipedia.org/wiki/Aquarium_heater

   A typical glass-tube immersion style 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 ...

3. Undertank heater - Wikipedia

   en.wikipedia.org/wiki/Undertank_heater

   The hot zone is just above the heater; the opposite zone, the cold zone, is where the live food and the water bowl would be placed. A substrate between the pad and the tank is necessary, as is a thermostat or rheostat to prevent it from overheating and burning the animals. Malfunction in an under tank heater could result in higher temperatures ...

4. List of freshwater aquarium fish species - Wikipedia

   en.wikipedia.org/wiki/List_of_freshwater...

   Tank size Temperature range pH range Water Hardness Ceylonese combtail: Belontia signata: 18 cm (7.1 in) Siamese fighting fish (sometimes Betta, esp. US) Betta splendens: 7.5 cm (3.0 in) Betta is the name of the genus that includes more than 60 species other than the Siamese fighting fish. 5 gal [62] 72–82 °F (22–28 °C) [62] 6.5-7.5 [62 ...

5. Water heating - Wikipedia

   en.wikipedia.org/wiki/Water_heating

   An 80 US gal (300 L; 67 imp gal) electric storage tank water heater was able to have a minimum energy factor of 86% under the pre-2015 standard, while under the 2015 standard, the minimum energy factor for an 80-gallon electric storage tank water heater is now 197%, which is only possible with heat pump technology. This rating measures ...

6. Storage water heater - Wikipedia

   en.wikipedia.org/wiki/Storage_water_heater

   Solar heat is clean and renewable. This is the most modern system. Increasingly, solar powered water heaters are being used. Their solar thermal collectors are installed outside dwellings, typically on the roof or walls or nearby, and the potable hot water storage tank is typically a pre-existing or new conventional water heater, or a water heater specifically designed for solar thermal.

7. AOL Mail

   mail.aol.com

   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. Thermal power station - Wikipedia

   en.wikipedia.org/wiki/Thermal_power_station

   A Rankine cycle with a two-stage steam turbine and a single feed water heater. The energy efficiency of a conventional thermal power station is defined as saleable energy produced as a percent of the heating value of the fuel consumed. A simple cycle gas turbine achieves energy conversion efficiencies from 20 to 35%. [5]

9. Atmospheric water generator - Wikipedia

   en.wikipedia.org/wiki/Atmospheric_water_generator

   State-of-the-art AWG for home use. An atmospheric water generator (AWG), is a device that extracts water from humid ambient air, producing potable water. Water vapor in the air can be extracted either by condensation - cooling the air below its dew point, exposing the air to desiccants, using membranes that only pass water vapor, collecting fog, [1] or pressurizing the air.