Suppose the insulating qualities of the wall of a house come mainly from a 4.0-in. layer...

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Suppose the insulating qualities of the wall of a house come mainly from a 4.0-in. layer...

Suppose the insulating qualities of the wall of a house come mainly from a 4.0-in. layer of brick and an R-19 layer of insulation.What is the total rate of heat loss through such a wall, if its total area is 245 ft2 and the temperature difference across it is 26 F?

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Answer 1

Answer #1

$\frac{Q}{t}=A\frac{(T_1-T_2)}{R_1+R_2}=\frac{245(26)}{1+19}=318.5$

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Answer 2

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