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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

   This is partly because ice forms on the outdoor unit's heat exchanger coil, which blocks air flow over the coil. To compensate for this, the heat pump system must temporarily switch back into the regular air conditioning mode to switch the outdoor evaporator coil back to the condenser coil, to heat up and defrost. Therefore, some heat pump ...

4. Ground source heat pump - Wikipedia

   en.wikipedia.org/wiki/Ground_source_heat_pump

   [50] [47] [49] The payback period for larger commercial systems in the US is 1–5 years, even when compared to natural gas. [47] Additionally, because geothermal heat pumps usually have no outdoor compressors or cooling towers, the risk of vandalism is reduced or eliminated, potentially extending a system's lifespan. [51]

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

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

   Just updated with the week's hottest deals, including an Apple Watch, a space heater best-selling slippers for $5.

6. 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 ...

7. 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."