In addition to direct energy costs, choosing Energy Efficient windows can affect:
┬╖ The size of heating/cooling system. With an improved building envelope you may be able to use a smaller heating and cooling system. This will save money when building or when replacing the old furnace.
┬╖ The location of the heating registers. These can be placed along the inside walls rather than the outside, saving ducting, drapery problems, and basement headroom. This can save money when building.
