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  1. Windows & Skylights

    https://greenhome.osu.edu/windows-skylights-and-roofs

    U-factor Rate at which a window or skylight conducts heat. It is generally expressed in units of Btu/hr-ft ... per minute per square foot of frame area (cfm/ft 2). A product with a low air leakage rating will be ... solar gains. SHGC ranges between 0 and 1, with a higher rating admitting more radiative energy. ...

  2. Farm Management

    https://fulton.osu.edu/program-areas/agriculture-and-natural-resources/farm-management

    of the most frequently asked question is, "What cash rental rate is fair?"  The question is ... would like it to be one rate that fits all, the reality is that every situation is different.  It truly ... Rents and Land Values Ohio Farm Custom Rates Other States Iowa Cash Rental Survey Crop Yields by County ...

  3. Appliances

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

    an Electronic Products Environmental Assessment Tool (EPEAT) rating. Energy Star is the most widely ... Electronics Council, is a three tiered rating system which certifies computers as gold, silver, and bronze ... microwaves doesn’t vary as much as other appliances; thus they do not receive Energy Star ratings. The only ...

  4. Reduced Air Infiltration

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

    a home's ACH, a home's air flow rate is measured in cubic feet per minute, per square foot of a home ... small openings in your house, and the air infiltration rate is measured in your home in units of cubic ... Building America's performance criteria, your home should have an air leakage rate of less than 0.25 ...

  5. Energy Audit

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

    air pressure difference between the inside and outside to determine the air infiltration rate of the ... home. If the test shows large air infiltration rates, the professional will then will use a smoke pen to ...

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

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

    efficiency ratings, types of heating fuels, and types of cooling systems HVAC System Components A typical ... new heating and cooling equipment, you must first understand the energy efficiency ratings, the ... type of system. Energy Efficiency Ratings Systems There are several efficiency ratings available to ...

  7. Natural Ventilation

    https://greenhome.osu.edu/natural-ventilation

    typologies and controls different types of windows will result in different ventilation rates. External ...

  8. Roofs

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

    a roof cool. A composite rating system known as the solar reflectance index (SRI) considers both ...

  9. SMV emblem

    https://agsafety.osu.edu/smv-emblem

    recognition rates of different shapes and colors mounted on simulated SMVs. After testing various designs, ...

  10. Water Heating

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

    R-Value indicates a lower heat loss from the hot water tank. First-hour rating (FHR) This is the amount of ... may demand in the morning hours, and the first-hour rating must exceed your family demand. Recovery ... rating, which can also be referenced as the coefficient of performance (COP). 26 Fuel Oil A low viscosity ...

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