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� . • • . • <br /> Area Btuh % of load <br /> Wail 2903 12.3 <br /> Floor 4518 19.1 <br /> Ceiling 4500 19 <br /> Windows 5160 21.8 <br /> infiltration 4419 18.7 <br /> System EfFiciency Loss 2150 9.1 <br /> Total: 23650 <br /> Heating Loads <br /> 23,650 BTU/hr <br /> r System Efficiency Loss <br /> Windows � / <br /> �Wall <br /> Floor� �Infiltration <br /> L Ceiling <br />