This program provides detailed heating & cooling load analysis with comprehensive breakdowns of specified conditions and computerized results of heat gains and losses. It automatically calculates room round duct sizes along with room supply and newly added room return grille sizes including C.F.M.s per grill, and multiple returns for both room, and central returns. You can also automatically calculate seasonal cooling operating costs based on any S.E.E.R., system size, hours of operation or utility rate you enter. The program also highlights and compares seasonal heating operating costs between natural gas, electric strip heat, L.P. gas, fuel oil and heat pumps, all at the same time allowing for different efficiencies, costs & fuel energy content on each type.