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2. 7 Walmart Items Homeowners Should Stock Up on Before ... - AOL

   www.aol.com/finance/7-walmart-items-homeowners...

   Walmart shoppers receive plenty of bang for their buck when they order these 50-pound bags online for $36.25. That comes out to spending about 73 cents per pound. ©Walmart

3. Are heat pumps the key to accelerating the energy transition?

   www.aol.com/news/heat-pumps-key-accelerating...

   Heat pumps operate similarly to refrigeration systems such as air conditioners (ACs), with the only difference of producing hot instead of chilled water and/or air, and offering both heating and ...

4. Heat pump - Wikipedia

   en.wikipedia.org/wiki/Heat_pump

   An air source heat pump (ASHP) is a heat pump that can absorb heat from air outside a building and release it inside; it uses the same vapor-compression refrigeration process and much the same equipment as an air conditioner, but in the opposite direction. ASHPs are the most common type of heat pump and, usually being smaller, tend to be used ...

5. Looking for a Respite From The Heat? Walmart Has Air ... - AOL

   www.aol.com/lifestyle/looking-respite-heat...

   Walmart is taking up to 46% off portable air conditioners as temperatures start rising ahead of summer. Looking for a Respite From The Heat? Walmart Has Air Conditioners on Sale.

6. Coefficient of performance - Wikipedia

   en.wikipedia.org/wiki/Coefficient_of_performance

   The coefficient of performance or COP (sometimes CP or CoP) of a heat pump, refrigerator or air conditioning system is a ratio of useful heating or cooling provided to work (energy) required. [ 1 ] [ 2 ] Higher COPs equate to higher efficiency, lower energy (power) consumption and thus lower operating costs.

7. Heating seasonal performance factor - Wikipedia

   en.wikipedia.org/wiki/Heating_seasonal...

   Heating seasonal performance factor (HSPF) is a term used in the heating and cooling industry. HSPF is specifically used to measure the efficiency of air source heat pumps. HSPF is defined as the ratio of heat output (measured in BTUs) over the heating season to electricity used (measured in watt-hours). [1] [2] It therefore has units of BTU ...