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2. Air mattress - Wikipedia

   en.wikipedia.org/wiki/Air_mattress

   An air mattress, also known as an airbed or a blow-up bed, [2] is an inflatable mattress made of polyvinyl chloride (PVC) or textile-reinforced urethane plastic or rubber. The deflated mattress can be compacted and carried or stored in a small form. They are inflated by blowing into a valve, either with a manual or an electric pump. Some are ...

3. Aeorobed for Kids: $50 including shipping at Amazon! - AOL

   www.aol.com/news/2008-10-07-aeorobed-for-kids-50...

   Amazon.com is offering this Aerobed for Kids for $50 including shipping -- 50% off the list price. From the website: Sleep surface: 50 by 25 inches; 4-inch high surround safety cushion Inflatable ...

4. These are the best dog bed deals our editors are loving this ...

   www.aol.com/best-dog-bed-deals-editors-085753114...

   Bedsure Orthopedic Dog Bed | 43% off at Amazon. Was $59.99 Now $33.99 . The best orthopedic dog beds are designed to give your pup maximum comfort and support while they sleep. This bed does just ...

5. Crankcase heater - Wikipedia

   en.wikipedia.org/wiki/Crankcase_heater

   A crankcase heater is an electrical component in a compressor in an air-conditioning system, heat pump system, or chiller system. The crankcase heater is normally on all the time, even when the unit is not running, though temperature sensors and set points may turn it off when not needed.

6. 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.

7. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   An air source heat pump can be used to air condition the building during hot weather, and to warm the building using heat extracted from outdoor air in cold weather. Air-source heat pumps are generally uneconomic for outdoor temperatures much below freezing. In colder climates, geothermal heat pumps can be used to extract heat from the ground ...