Units - Building Systems Flashcards

1
Q

ACH

A

Air Changes per Hour

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2
Q

BTU

A

British Thermal Unit

The quantity of heat required to raise the temperature of 1 lb. of water 1oF

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3
Q

Qconvection/conduction

units

A

BTU / hr

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4
Q

R-value

units

A

hr ft2 oF / BTU

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5
Q

U-value

units

A

BTU / hr ft2 oF

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