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  2. Water softening - Wikipedia

    en.wikipedia.org/wiki/Water_softening

    The waste waters eluted from the ion-exchange column containing the unwanted calcium and magnesium salts are typically discharged to the sewage system. [3] Recharge typically takes the following steps: [11] Backwash: Water is directed through the resin in the direction opposite to that of normal flow, and the output is sent to a drain for disposal.

  3. Tankless water heating - Wikipedia

    en.wikipedia.org/wiki/Tankless_water_heating

    A hybrid water heater is a water heating system that integrates technology traits from both the tank-type water heaters and the tankless water heaters. [5] It maintains water pressure and consistent supply of hot water across multiple hot water applications, and like its tankless cousins, it is efficient and can supply a continuous flow of hot ...

  4. Space heater - Wikipedia

    en.wikipedia.org/wiki/Space_heater

    In the United States, Underwriters Laboratories' UL 1278 [11] (for portable electric space heaters) and UL 1042 [12] standards (for portable and fixed baseboard electric heaters) certify heater safety. Although the General Services Administration had Specification W-H-193 [13] for

  5. Space Heater Safety Tips (So Your House Doesn't Go Up ... - AOL

    www.aol.com/finance/space-heater-safety-tips...

    Here are some safety tips to keep in mind when using a space heater in your house. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...

  6. Hot water storage tank - Wikipedia

    en.wikipedia.org/wiki/Hot_water_storage_tank

    A hot water storage tank (also called a hot water tank, thermal storage tank, hot water thermal storage unit, heat storage tank, hot water cylinder, and geyser) is a water tank used for storing hot water for space heating or domestic use. Water is a convenient heat storage medium because it has a high specific heat capacity. This means ...

  7. Do I need to worry about space heaters? Here’s what experts ...

    www.aol.com/lifestyle/worry-space-heaters...

    Space heaters can and do cause fires, making it important to be mindful about how you use them. However, experts say it's possible to use electric space heaters safely.