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2. Heat pump - Wikipedia

   en.wikipedia.org/wiki/Heat_pump

   Specifically, the heat pump transfers thermal energy using a heat pump and refrigeration cycle, cooling the cool space and warming the warm space. [1] In winter a heat pump can move heat from the cool outdoors to warm a house; the pump may also be designed to move heat from the house to the warmer outdoors in summer.

3. Air conditioning - Wikipedia

   en.wikipedia.org/wiki/Air_conditioning

   [2] [3] Air conditioning is a member of a family of systems and techniques that provide heating, ventilation, and air conditioning (HVAC). [4] Heat pumps are similar in many ways to air conditioners, but use a reversing valve to allow them both to heat and to cool an enclosed space. [5]

4. Coefficient of performance - Wikipedia

   en.wikipedia.org/wiki/Coefficient_of_performance

   The COP usually exceeds 1, especially in heat pumps, because instead of just converting work to heat (which, if 100% efficient, would be a COP of 1), it pumps additional heat from a heat source to where the heat is required. Most air conditioners have a COP of 3.5 to 5. [3]

5. 25 of the best Walmart sales of the week: Apple gadgets ... - AOL

   www.aol.com/lifestyle/the-best-walmart-sales-of...

   The set includes 9.5-inch and 11-inch frying pans, a 2-quart saucepan with lid, a 4.2-quart casserole with lid and a 5-quart sauté pan with lid. This fan summed it up best: "These are the best ...

6. Allison Holker book takes unflinching look at husband Stephen ...

   www.aol.com/allison-holker-book-takes...

   Two years after the death of Stephen “tWitch” Boss, his wife Allison Holker gives a barefaced look at her grief in new book, “This Far."

7. LG - Wikipedia

   en.wikipedia.org/wiki/LG

   LG Corporation (or LG Group), [b] formerly known as Lucky-Goldstar, [c] is a South Korean multinational conglomerate founded by Koo In-hwoi in 1947 and managed by ...