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2. Deep energy retrofit - Wikipedia

   en.wikipedia.org/wiki/Deep_energy_retrofit

   A Deep Energy Retrofit (abbreviated as DER) is an energy conservation project in an existing building that leads to an overall improvement in building performance.While there is no exact definition for a deep energy retrofit, it can be characterized as a whole-building analysis and construction process that aims to reduce on-site energy use by 50% or more using existing technologies, materials ...

3. Renewable heat - Wikipedia

   en.wikipedia.org/wiki/Renewable_heat

   The 4,000-square-foot (370 m 2) home cost $125 per square foot (or 370 m 2 at $1,351/m 2), similar to the cost of a traditional new home. Active solar heating uses pumps to move air or a liquid from the solar collector into the building or storage area.

4. Radiant heating and cooling - Wikipedia

   en.wikipedia.org/wiki/Radiant_heating_and_cooling

   Today, modern radiant systems typically use water as a thermal medium for efficient heat transfer and are widely adopted in residential, commercial, and industrial buildings. While valued for its potential to enhance energy efficiency, quiet operation, and thermal comfort , [ 7 ] their performance varies with design and application, leading to ...

5. Passive daytime radiative cooling - Wikipedia

   en.wikipedia.org/wiki/Passive_daytime_radiative...

   [7] [8] [91] A multilayer PDRC surface covering 10% of a building's roof can replace 35% of air conditioning used during the hottest hours of daytime. [7] In suburban single-family residential areas, PDRCs can lower energy costs by 26% to 46% in the United States [90] and lower temperatures on average by 5.1ᵒC. With the addition of "cold ...

6. News, Politics, Sports, Mail & Latest Headlines - AOL.com

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

7. American Radiator Company - Wikipedia

   en.wikipedia.org/wiki/American_Radiator_Company

   The American Radiator Company was established in 1892 by the merger ... and the construction of new factories was initiated in Italy (1910, opened 1911) and Austria ...

8. AOL Mail

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   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!

9. Geothermal heating - Wikipedia

   en.wikipedia.org/wiki/Geothermal_heating

   According to the US Environmental Protection Agency, geo-exchange systems save homeowners 30–70 percent in heating costs, and 20–50 percent in cooling costs, compared to conventional systems. [29] Geo-exchange systems also save money because they require much less maintenance. In addition to being highly reliable they are built to last for ...