How to calculate btu per square foot<br>Measure your square footage. Measure the square footage of each room you plan to heat or cool and add them together. If you're installing a furnace or central air conditioning system, this typically includes every room.
square footage has been calculated by ford
( z1 calculate :ARG0 ( z2 company :name ( z3 name :op "Ford" ) ) :ARG1 ( z4 area-quantity :quant 1 :unit ( z5 square-foot ) ) )