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2. Is It Cheaper To Run Space Heaters Or Central Heat? - AOL

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3. Heat Your Home Cheaper and More Efficiently: 6+ Monetary ...

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4. Storage heater - Wikipedia

   en.wikipedia.org/wiki/Storage_heater

   A domestic storage heater which uses cheap night time electricity to heat ceramic bricks which then release their heat during the day. A storage heater or heat bank (Australia) is an electrical heater which stores thermal energy during the evening, or at night when electricity is available at lower cost, and releases the heat during the day as required.

5. 7 Ways To Keep Your Home Heating Bill Low During Inflation - AOL

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   The Department of Energy projected steep spikes for home heating... Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ...

6. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   Electric heating can either be purely resistance-type heating or make use of a heat pump system to take advantage of low-grade heat in the air or ground. A district heating system uses centrally located boilers or water heaters and circulates heat energy to individual customers by circulating hot water or steam.

7. Coefficient of performance - Wikipedia

   en.wikipedia.org/wiki/Coefficient_of_performance

   < is the heat given off to the hot reservoir; it is lost by the system and therefore negative [6] (see heat). Note that the COP of a heat pump depends on its direction. The heat rejected to the hot sink is greater than the heat absorbed from the cold source, so the heating COP is greater by one than the cooling COP.