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2. Infrared heater - Wikipedia

   en.wikipedia.org/wiki/Infrared_heater

   A household infrared electric heater. An infrared heater or heat lamp is a heating appliance containing a high-temperature emitter that transfers energy to a cooler object through electromagnetic radiation. Depending on the temperature of the emitter, the wavelength of the peak of the infrared radiation ranges from 750 nm to 1 mm. No contact or ...

3. Electric heating - Wikipedia

   en.wikipedia.org/wiki/Electric_heating

   An electric heater is an electrical device that converts an electric current into heat. [1] The heating element inside every electric heater is an electrical resistor , and works on the principle of Joule heating : an electric current passing through a resistor will convert that electrical energy into heat energy.

4. Tankless water heating - Wikipedia

   en.wikipedia.org/wiki/Tankless_water_heating

   Electric point-of-use (POU) tankless water heater, wall-mounted under a sink (Germany) Tankless water heaters can be further divided into two categories according to their heating capability: "full on/full off" versus "modulated". Full on/full off units do not have a variable power output level; the unit is either fully on or completely off ...

5. Water-tube boiler - Wikipedia

   en.wikipedia.org/wiki/Water-tube_boiler

   The older fire-tube boiler design, in which the water surrounds the heat source and gases from combustion pass through tubes within the water space, is typically a much weaker structure and is rarely used for pressures above 2.4 MPa (350 psi). A significant advantage of the watertube boiler is that there is less chance of a catastrophic failure ...

6. List of pipeline accidents in the United States in the 1970s

   en.wikipedia.org/wiki/List_of_pipeline_accidents...

   Natural gas & Natural Gas Liquids flowed out of an open 12-inch pipeline, and were ignited by an open flame heater. 5 of the crew were killed, and 2 seriously burned. [112] January 10 – A gas leak at the Pathfinder Hotel, in Fremont, Nebraska, exploded, killing 20 people, and, injuring 39 others. A 6 foot by 6 foot section of sidewalk was ...

7. Solar thermal energy - Wikipedia

   en.wikipedia.org/wiki/Solar_thermal_energy

   Roof-mounted close-coupled thermosiphon solar water heater. The first three units of Solnova in the foreground, with the two towers of the PS10 and PS20 solar power stations in the background. Solar thermal energy ( STE ) is a form of energy and a technology for harnessing solar energy to generate thermal energy for use in industry , and in the ...