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  2. Underfloor heating - Wikipedia

    en.wikipedia.org/wiki/Underfloor_heating

    There is a likelihood that underfloor heating may add to offgassing and sick building syndrome in an environment, particularly when the carpet is used as flooring. [citation needed] Electric underfloor heating systems cause low frequency magnetic fields (in the 50–60 Hz range), old 1-wire systems much more so than modern 2-wire systems.

  3. Underfloor air distribution - Wikipedia

    en.wikipedia.org/wiki/Underfloor_air_distribution

    UFAD can bring several potential advantages over traditional overhead systems, including reduced life-cycle building costs; improved thermal comfort, occupant satisfaction, and productivity; improved ventilation efficiency, indoor air quality, and health; reduced energy use and static pressures; and reduced floor-to-floor height in new ...

  4. Air source heat pump - Wikipedia

    en.wikipedia.org/wiki/Air_source_heat_pump

    [3] [19] If running costs are important choosing the right size is important because an ASHP which is too large will be more expensive to run. [ 20 ] It can be more complicated to retrofit conventional heating systems that use radiators/ radiant panels , hot water baseboard heaters, or even smaller diameter ducting, with ASHP-sourced heat.

  5. Hydronic balancing - Wikipedia

    en.wikipedia.org/wiki/Hydronic_balancing

    Avoiding overflows means the pump is not doing unnecessary work which saves energy, reduces operating cost and can reduce the size of the pump required (saving on the initial pump investment). Balancing also saves energy and operating costs by reducing the amount of time between starting a plant and reaching the required indoor climate.

  6. Heat recovery ventilation - Wikipedia

    en.wikipedia.org/wiki/Heat_recovery_ventilation

    Between 2009 and 2013, some 15,000 brand new social homes were built in the UK with NIBE EAHPs used as primary heating. Owners and housing association tenants reported crippling electric bills. [31] [32] High running costs are usual with exhaust air heat pumps and should be expected, due to the very small heat recovery with these units ...

  7. Heat pump and refrigeration cycle - Wikipedia

    en.wikipedia.org/wiki/Heat_pump_and...

    Thermodynamic heat pump cycles or refrigeration cycles are the conceptual and mathematical models for heat pump, air conditioning and refrigeration systems. [1] A heat pump is a mechanical system that transmits heat from one location (the "source") at a certain temperature to another location (the "sink" or "heat sink") at a higher temperature. [2]

  8. Race season is here: Here are the costs (literally and ... - AOL

    www.aol.com/finance/race-season-costs-literally...

    “It costs too much,” running and mindset coach Ronnie Staton told Fortune. Staton supports and trains ultramarathon runners (who run anything farther than a 26.2-mile marathon distance ...

  9. Central heating - Wikipedia

    en.wikipedia.org/wiki/Central_heating

    Institutional heating systems (office buildings or schools, for example) can use low-grade, inexpensive bunker fuel to run their heating plants, but capital cost is high compared to more easily managed liquid fuels. Natural gas is a widespread heating fuel in North America and northern Europe. Gas burners are automatically controlled and ...

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