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  1. Passive Design

    https://greenhome.osu.edu/passive-design

    construction periods, though some of these principles can be applied in retrofit projects.   Image source ...

  2. Heating, Ventilation, and Air Conditioning (HVAC)

    https://greenhome.osu.edu/energy-efficiency/heating-ventilation-and-air-conditioning

    HVAC system includes the following components Furnace or alternative heating source provides heating ... ratings, the heating sources and cooling sources available in your area, and the advantages and ... energy sources to keep your home comfortable during the cold times of the year. Heating systems include ...

  3. Home

    https://greenhome.osu.edu/home

    energy sources such as wind, geothermal, and solar. These technologies typically require a larger capital ...

  4. Renewable Energy

    https://greenhome.osu.edu/renewables

      Renewable energy comes from sources that cannot be depleted or from those that are replaced ... power sector, and about 17% of U.S. electricity generation was from renewable energy sources. 1 The ... following picture illustrates the five common renewable energy sources.   Renewable energy sources can be ...

  5. Water Heating

    https://greenhome.osu.edu/energy-efficiency/water-heating

    heaters,  energy sources for water heating,   sizing your hot water tank, cost of different water heaters, ... fuel sources are limited to the 0-1 range. The higher the EF, the greater the efficiency of the water ... systems use hot water storage with electricity or natural gas as a fuel source. For these systems you will ...

  6. Reduced Air Infiltration

    https://greenhome.osu.edu/reduced-air-infiltration

    around windows, doors, and openings for wiring, plumbing, and ducts. Image source: www.yourhome.gov.au ... description of how an $1,175 investment in improving the energy efficiency of a home is saving a home owner in ...

  7. Building Location and Orientation

    https://greenhome.osu.edu/building-location-and-orientation

    the sun can save between 10-40% on home heating.1     Image source:  www.nachi.org    Typical Design ...                                                                                                                                                                                                                                                                                                                                Install windows on your south- facing wall.  These windows will serve as a heat source in ...

  8. Lighting

    https://greenhome.osu.edu/energy-efficiency/lighting

    as newer energy-efficient lighting sources. These newer sources include halogen incandescent, compact ...

  9. Passive Solar Heating

    https://greenhome.osu.edu/renewables/solar/passive-solar-heating

    Description, Types and Costs of Technology, Application, Design Considerations, Operation and Maitenance, and ...

  10. Passive Solar Heating

    https://greenhome.osu.edu/passive-solar

    Introduction, Description, Types and Costs of Technology, Application, Design Considerations, Operation and ...

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