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  2. Passive solar building design - Wikipedia

    en.wikipedia.org/wiki/Passive_solar_building_design

    In a sun-tempered building, the south-facing window area should be limited to about 5 to 7% of the total floor area, less in a sunny climate, to prevent overheating. Additional south-facing glazing can be included only if more thermal mass is added. Energy savings are modest with this system, and sun tempering is very low cost. [20]

  3. Insulated glazing - Wikipedia

    en.wikipedia.org/wiki/Insulated_glazing

    Low emissivity glass (low E glass) is a commercially available option for IGU construction. Low E glass is made by applying a Low E coating to a pane of glass. These are generally metallic coatings, usually applied onto the second or third glass surfaces of the unit, that have the effect of reflecting infrared light, and blocking or attenuating ...

  4. Window insulation - Wikipedia

    en.wikipedia.org/wiki/Window_insulation

    Energy-efficient houses in cold climates often feature triple-glazed windows with a U-value between 0.19 and 0.26. In moderate and hot climates, quality double-glazed windows with a U-value of about 0.30 are generally a more cost-competitive and effective choice. [6]

  5. Quadruple glazing - Wikipedia

    en.wikipedia.org/wiki/Quadruple_glazing

    With six-pane glazing, a U g value as low as 0.24 W/(m 2 K) [R-value 24] was reported. [1] This brings several advantages, such as: Energy efficient buildings without modulated sun shading The desired overall window thermal transmittance value of lower than about 0.4 W/(m 2 K) is possible without having to depend on modulated external shading.

  6. Home energy upgrades from public utilities - Wikipedia

    en.wikipedia.org/wiki/Home_energy_upgrades_from...

    Florida Public Utilities (FPU) has sent energy experts to customers' homes to evaluate energy use, as described on the utility's website in 2019. [44] During a free visit, an Energy Expert reviews a home's energy use and evaluates the energy efficiency of walls, windows, insulation, appliances, lighting and other features.

  7. 5 Items From the 1970s That Are Worth a Lot of Money - AOL

    www.aol.com/5-items-1970s-worth-lot-170007423.html

    While the Apple II, which was released in 1977, cost about $1,300 at the time of its launch, now it could fetch you over an estimated $6,600. If it’s in decent condition with its monitor ...

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