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2. Hydronics - Wikipedia

   en.wikipedia.org/wiki/Hydronics

   These systems depend on the proper operation of thermostatic air-venting valves located on radiators throughout the heated area. When the system is not in use, these valves are open to the atmosphere, and radiators and pipes contain air. When a heating cycle begins, the boiler produces steam, which expands and displaces the air in the system.

3. Underfloor heating - Wikipedia

   en.wikipedia.org/wiki/Underfloor_heating

   Other applications for which either electric or hydronic systems are suited include snow/ice melting for walks, driveways and landing pads, turf conditioning of football and soccer fields and frost prevention in freezers and skating rinks. A range of underfloor heating systems and designs are available to suit different types of flooring. [22]

4. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   Electric heating or resistance heating converts electricity directly to heat. Electric heat is often more expensive than heat produced by combustion appliances like natural gas, propane, and oil. Electric resistance heat can be provided by baseboard heaters, space heaters, radiant heaters, furnaces, wall heaters, or thermal storage systems.

5. Is It Cheaper To Run Space Heaters Or Central Heat? - AOL

   www.aol.com/cheaper-run-space-heaters-central...

   Heating costs for central units also vary depending on variables such as the size and age of the house (older homes tend to be less insulated) and the type of heat. The home’s condition also ...

6. Ground source heat pump - Wikipedia

   en.wikipedia.org/wiki/Ground_source_heat_pump

   A heat pump is the central unit for the building's heating and cooling. It usually comes in two main variants: Liquid-to-water heat pumps (also called water-to-water) are hydronic systems that carry heating or cooling through the building through pipes to conventional radiators, underfloor heating, baseboard radiators and hot water tanks. These ...

7. Radiant heating and cooling - Wikipedia

   en.wikipedia.org/wiki/Radiant_heating_and_cooling

   Underfloor heating systems—electric or hydronic; Wall heating systems; Radiant ceiling panels; Underfloor and wall heating systems often are called low-temperature systems. Since their heating surface is much larger than other systems, a much lower temperature is required to achieve the same level of heat transfer. This provides an improved ...