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2. Solar thermal energy - Wikipedia

   en.wikipedia.org/wiki/Solar_thermal_energy

   The sun’s free energy can also be used to heat water to fulfil domestic hot water demands, such as the hot water that comes out of taps. Solar thermal water heating systems can provide approximately 50% of a property’s annual hot water demand (depending on the size of the property, its location etc) which in turn can help homeowners make ...

3. Solar thermal collector - Wikipedia

   en.wikipedia.org/wiki/Solar_thermal_collector

   Solar water heating systems are most likely to be cost effective for facilities with water heating systems that are expensive to operate, or with operations such as laundries or kitchens that require large quantities of hot water. Unglazed liquid collectors are commonly used to heat water for swimming pools but can also be applied to large ...

4. Solar water heating - Wikipedia

   en.wikipedia.org/wiki/Solar_water_heating

   When a solar water heating and hot-water central heating system are used together, solar heat will either be concentrated in a pre-heating tank that feeds into the tank heated by the central heating, or the solar heat exchanger will replace the lower heating element and the upper element will remain to provide for supplemental heat. However ...

5. 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.

6. Heated shot - Wikipedia

   en.wikipedia.org/wiki/Heated_shot

   A hot furnace could heat a 24 pounder shot in around 25 minutes, with larger shot taking a few minutes longer. If the furnace was cold, heating shot could take up an hour and a quarter after lighting the fire. [1] The Heated-shot furnace at Fort-la-Latte, showing its proximity to the ramparts where the fort's guns were placed

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