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2. Thermic fluid heater - Wikipedia

   en.wikipedia.org/wiki/Thermic_fluid_heater

   It uses a heating medium, typically a thermic fluid or heat transfer oil, which circulates through a closed-loop system. The thermic fluid absorbs heat generated by the combustion of fuel and then transfers this heat to the required processes or equipment via heat exchangers. Combustion: [5] The fuel is burned in the combustion chamber ...

3. Heat pump - Wikipedia

   en.wikipedia.org/wiki/Heat_pump

   In general, heat pumps work most efficiently (that is, the heat output produced for a given energy input) when the difference between the heat source and the heat sink is small. When using a heat pump for space or water heating, therefore, the heat pump will be most efficient in mild conditions, and decline in efficiency on very cold days.

4. Heat-transfer fluid - Wikipedia

   en.wikipedia.org/wiki/Heat-transfer_fluid

   Regarding the selection of a low-cost or cost-effective thermal oil, it is important to consider not only the acquisition or purchase cost, but also the operating and replacement costs. [5] An oil that is initially more expensive may prove to be more cost-effective in the long run if it offers higher thermal stability, thereby reducing the ...

5. Heating system - Wikipedia

   en.wikipedia.org/wiki/Heating_system

   Heat pumps: They can be used for heating and cooling, transferring heat using refrigerant and electricity, making them more efficient than other heating systems. [7] Heat pumps are most often used in places where the temperature stays around 40 degrees. When operating below 40° (F) heating pumps lose some of their efficiency.

6. Oil heater - Wikipedia

   en.wikipedia.org/wiki/Oil_heater

   Oil heaters consist of metal columns with cavities inside, where heat-transfer oil flows freely around the heater. A heating element at the base of the heater heats the diathermic oil, which flows around the cavities of the heater by convection. The oil has a relatively high specific heat capacity and a high boiling point.

7. Ground source heat pump - Wikipedia

   en.wikipedia.org/wiki/Ground_source_heat_pump

   A heat pump in combination with heat and cold storage. A ground source heat pump (also geothermal heat pump) is a heating/cooling system for buildings that use a type of heat pump to transfer heat to or from the ground, taking advantage of the relative constancy of temperatures of the earth through the seasons.