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  2. Energy factor - Wikipedia

    en.wikipedia.org/wiki/Energy_factor

    The energy factor metric only applies to residential water heaters, which are currently defined by fuel, type, and input capacity. [5] Generally, the EF number represents the thermal efficiency of the water heater as a percentage, since it is an average of the ratio of the theoretical heat required to raise the temperature of water drawn to the amount of energy actually consumed by the water ...

  3. Category:Family tree templates - Wikipedia

    en.wikipedia.org/wiki/Category:Family_tree_templates

    Template:Abraham family tree. Template:Adam to Noah family tree. Template:Adams family tree. Template:Addison family tree. Template:Ahmad Shah Durrani family tree. Template:Family tree of Ahmed Raza Khan Barelvi. Template:Allégret-Signoret-Montand-Castaldi family tree. Template:Anushtiginid dynasty family tree.

  4. Water heating - Wikipedia

    en.wikipedia.org/wiki/Water_heating

    All new gas storage tank water heaters with capacities smaller than 55 US gal (210 L; 46 imp gal) sold in the United States in 2015 or later shall have an energy factor of at least 60% (for 50-US-gallon units, higher for smaller units), increased from the pre-2015 minimum standard of 58% energy factor for 50-US-gallon gas units.

  5. US plans water heater standards, says they will save ... - AOL

    www.aol.com/news/us-plans-water-heater-standards...

    The U.S. Department of Energy on Friday proposed energy efficiency standards on water heaters it said would save consumers $11.4 billion on energy and water bills annually. The standards on ...

  6. Help:Family trees - Wikipedia

    en.wikipedia.org/wiki/Help:Family_trees

    Help:Family trees. H:FT. This page aims to assist Wikipedians working with biographical articles containing family trees . The most common way is to display a family tree on Wikipedia is as an ahnentafel by Template: Ahnentafel. However, there are other options. This page originated in examples taken from a discussion on the Village pump in ...

  7. List of family trees - Wikipedia

    en.wikipedia.org/wiki/List_of_family_trees

    Family tree of the British royal family. House of Tudor Patrimonial/Welsh Lineage. House of Bebbanburgh ealdorman and high-reeve of Bebbanburgh (now Bamburgh) Howard family, Dukes of Norfolk (picture) and Dukes of Norfolk (clickable) de Clare, descendants of Richard I, Duke of Normandy's, Earls of Pembroke, Glamorgan, Hertford and Gloucester, etc.

  8. Family tree of Roman emperors - Wikipedia

    en.wikipedia.org/wiki/Family_tree_of_Roman_emperors

    The emperors from the founding of the Dominate in 284, in the West until 476 and in the East until 518, can be organised into one large dynasty plus various unrelated emperors. During most of this periods, though not always, there where two senior emperors ruling in separate courts. This division became permanent after the death of Theodosius I ...

  9. Template:Tree chart/start - Wikipedia

    en.wikipedia.org/wiki/Template:Tree_chart/start

    This template is meant to be used in conjunction with {} and {{Tree chart/end}} to create various types of charts (such as family trees). See {}'s documentation for help on how to actually make charts. Parameters. summary (optional but recommended) Meant to contain a text description describing the chart as a whole. This summary is for ...