I am working on an older home . I am installing two furnaces with coil and condensers . This home has about 1600 sq ft in total . 800 sq ft per floor that needs to be heated . Rooms and hallways have 10 ft ceilings . Need a second opinion on size of furnace
Years ago bigger was better to save your customer money and your self call back on over sized furnaces and too small duct which some times the return are bigger problems I would use two smaller furnace possible the heat load of each floor is no more then 30000 btu if you do it correctly but.
the best thing to concider is what size is the duck work. To see how much air or cfm it can move in order to consider what the most load you can put in it. IT should be at least danielshvacphiladelphia.com
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