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  2. How much does a home addition cost? 2024 estimates - AOL

    www.aol.com/finance/much-does-home-addition-cost...

    For example, a bedroom could cost anywhere between $80 and $160 per square foot, while a bathroom could cost anywhere from $70 to $250 per square foot, according to Angi. The project’s ...

  3. How much does a home addition cost? - AOL

    www.aol.com/much-does-home-addition-cost...

    Most home additions cost $80 – $200 per square foot, on average. The larger the project, the higher the cost in most cases. For example, an average 20 x 20 square foot room would cost ...

  4. Determining Ideal BTUs Per Square Foot for AC Units settings

    www.aol.com/determining-ideal-btus-per-square...

    For premium support please call: 800-290-4726 more ways to reach us

  5. Seasonal energy efficiency ratio - Wikipedia

    en.wikipedia.org/wiki/Seasonal_energy_efficiency...

    Air-conditioner sizes are often given as "tons" of cooling, where 1 ton of cooling equals 12,000 BTU/h (3.5 kW). 1 ton of cooling equals the amount of power that needs to be applied continuously over a 24-hour period to melt 1 ton of ice. The annual cost of electric energy consumed by an air conditioner may be calculated as follows:

  6. British thermal unit - Wikipedia

    en.wikipedia.org/wiki/British_thermal_unit

    It is the rate of heat transfer needed to freeze 1 short ton (907 kg) of water into ice in 24 hours. In the United States and Canada, the R-value that describes the performance of thermal insulation is typically quoted in square foot degree Fahrenheit hours per British thermal unit (ft 2 ⋅°F⋅h/Btu). For one square foot of the insulation ...

  7. Ton of refrigeration - Wikipedia

    en.wikipedia.org/wiki/Ton_of_refrigeration

    It was originally defined as the rate of heat transfer that results in the freezing or melting of 1 short ton (2,000 lb; 907 kg) of pure ice at 0 °C (32 °F) in 24 hours. [1] [2] The modern definition is exactly 12,000 Btu IT /h (3.516853 kW). Air-conditioning and refrigeration equipment capacity in the U.S. is often specified in "tons" (of ...

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