What information does one need to know whether or not their A/C and/or furnace is undersized?
My house is 2500sq. ft. I have 10 4x10 registers, 2 2x10 registers, and 1 6x10 register. I have 2 5" pipes connected behind a 30x6 grill and one 20x10 return.
Currently I have a 15 year old 75,000 BTU furnace and a 2 ton A/C unit.
I can get you more info if someone needs it but my question is is this enough?