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  2. Ground source heat pump - Wikipedia

    en.wikipedia.org/wiki/Ground_source_heat_pump

    Ground source heat pumps are recognized as one of the most efficient heating and cooling systems on the market. They are often the second-most cost-effective solution in extreme climates (after co-generation), despite reductions in thermal efficiency due to ground temperature. (The ground source is warmer in climates that need strong air ...

  3. Winter Heating: How To Choose the Best System for Your ... - AOL

    www.aol.com/winter-heating-choose-best-system...

    With the federal government still offering incentives for energy efficient home improvements, including home heating systems, it might make sense to upgrade your home heating system as winter takes...

  4. Heat pump - Wikipedia

    en.wikipedia.org/wiki/Heat_pump

    In most settings, heat pumps will reduce CO 2 emissions compared to heating systems powered by fossil fuels. [62] In regions accounting for 70% of world energy consumption, the emissions savings of heat pumps compared with a high-efficiency gas boiler are on average above 45% and reach 80% in countries with cleaner electricity mixes. [4]

  5. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    Air conditioning can be achieved using a mechanical 'air conditioner' or by other methods, including passive cooling and ventilative cooling. [2] [3] Air conditioning is a member of a family of systems and techniques that provide heating, ventilation, and air conditioning (HVAC). [4]

  6. Energy Efficient HVAC Systems Will Surpass $33 Billion in ...

    www.aol.com/2013/06/11/energy-efficient-hvac...

    Energy Efficient HVAC Systems Will Surpass $33 Billion in Annual Revenue by 2020, Forecasts Navigant Research BOULDER, Colo.--(BUSINESS WIRE)-- Energy consumption by heating, ventilation, and air ...

  7. Seasonal energy efficiency ratio - Wikipedia

    en.wikipedia.org/wiki/Seasonal_energy_efficiency...

    In the United States, the efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER) which is defined by the Air Conditioning, Heating, and Refrigeration Institute, a trade association, in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [1]

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