Figure $3\mathrm{.}15$

Floor plan for Problem $3\mathrm{.}19.$

$3\mathrm{.}19$ Find the design heat loss from a room of following specifications and is similar in design to that of one shown in Figure $3\mathrm{.}15.$

Wall: $5$ m by $9$ m with ceiling height of $8$ m and is made of $4$ inch face brick and $8$ inch cinder block with $\backslash (1/2\backslash )$ inch gypsum wallboard.

Windows $(5)$: $\backslash (1\mathrm{.}5\backslash$mathrm$\{$~mW$\}\backslash$times $1\backslash$mathrm$\{$mH$\}\backslash )$ double glass $(3/8$ inch air space E$-$film$)$ double hung with vinyl frame.

Door: $\backslash (0\mathrm{.}7\backslash$mathrm$\{$~mW$\}\backslash$times $6\backslash$mathrm$\{$mH$\}\backslash )$ Swinging residential $1$ inch solid wood door with no vestibule used by $10$ persons every hour.

Design condition: $303$ K

Outdoors condition: $250$ K