When.com Web Search

  1. Ads

    related to: spa heater sizing calculator

Search results

  1. Results From The WOW.Com Content Network
  2. Hot tub - Wikipedia

    en.wikipedia.org/wiki/Hot_tub

    The hot tub pump and hot tub heater represent most of the power consumption in a hot tub and vary in use of power depending on their size. [ 4 ] Energy efficiency of portable hot tubs has been studied by the Pacific Gas and Electric Company (PGEC) , [ 5 ] leading to industry responses [ 6 ] and interest from both the California Energy ...

  3. Heating seasonal performance factor - Wikipedia

    en.wikipedia.org/wiki/Heating_seasonal...

    Heating seasonal performance factor (HSPF) is a term used in the heating and cooling industry. HSPF is specifically used to measure the efficiency of air source heat pumps. HSPF is defined as the ratio of heat output (measured in BTUs) over the heating season to electricity used (measured in watt-hours). [1] [2] It therefore has units of BTU ...

  4. Storage water heater - Wikipedia

    en.wikipedia.org/wiki/Storage_water_heater

    Solar heat is clean and renewable. This is the most modern system. Increasingly, solar powered water heaters are being used. Their solar thermal collectors are installed outside dwellings, typically on the roof or walls or nearby, and the potable hot water storage tank is typically a pre-existing or new conventional water heater, or a water heater specifically designed for solar thermal.

  5. Swimming pool sanitation - Wikipedia

    en.wikipedia.org/wiki/Swimming_pool_sanitation

    Features that are part of the water circulation system can extend treatment capacity needs for sizing calculations and can include: artificial streams and waterfalls, in-pool fountains, integrated hot tubs and spas, water slides and sluices, artificial "pebble beaches", submerged seating as bench-ledges or as "stools" at in-pool bars, plunge ...

  6. Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

  7. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!