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2. Heat pump - Wikipedia

   en.wikipedia.org/wiki/Heat_pump

   e. A heat pump is a device that consumes work (or electricity) to transfer heat from a cold heat sink to a hot heat sink. Specifically, the heat pump transfers thermal energy using a refrigeration cycle, cooling the cool space and warming the warm space. [1] In cold weather, a heat pump can move heat from the cool outdoors to warm a house (e.g ...

3. Seasonal energy efficiency ratio - Wikipedia

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

   The energy efficiency ratio (EER) of a particular cooling device is the ratio of output cooling energy (in BTUs) to input electrical energy (in watt-hours) at a given operating point. EER is generally calculated using a 95 °F (35 °C) outside temperature and an inside (actually return-air) temperature of 80 °F (27 °C) and 50% relative humidity.

4. Ground source heat pump - Wikipedia

   en.wikipedia.org/wiki/Ground_source_heat_pump

   In Finland, a geothermal heat pump was the most common heating system choice for new detached houses between 2006 and 2011 with market share exceeding 40%. Arrangement Internal arrangement Liquid-to-water heat pump. A heat pump is the central unit for the building's heating and cooling. It usually comes in two main variants:

5. Solar-assisted heat pump - Wikipedia

   en.wikipedia.org/wiki/Solar-assisted_heat_pump

   A solar-assisted heat pump ( SAHP) is a machine that combines a heat pump and thermal solar panels and/or PV solar panels in a single integrated system. [1] Typically these two technologies are used separately (or only placing them in parallel) to produce hot water. [2] In this system the solar thermal panel performs the function of the low ...

6. 15 products to help you stay cool in the extreme heat: 'A ...

   www.aol.com/lifestyle/products-to-help-you-stay...

   The Green Pet Shop Cooling Pet Pad (Large) $60 at Amazon. JISULIFE Portable Neck Fan. $26 at Walmart. See 10 more. In fact, experts have a phrase for surviving extreme heat: "Wetter is better ...

7. Air source heat pump - Wikipedia

   en.wikipedia.org/wiki/Air_source_heat_pump

   The heat pump's performance is limited by the Carnot cycle and will approach 1.0 as the outdoor-to-indoor temperature difference increases, which for most air source heat pumps happens as outdoor temperatures approach −18 °C (0 °F). [citation needed] Heat pump construction that enables carbon dioxide as a refrigerant may have a COP of ...