Ask your HVAC dealer for help choosing a system that meets the heating and cooling demands of your home or building. Don’t expect to replace an old heating and cooling system with a new one of the same size. Systems often were oversized in older homes and buildings.
Better technology shows that oversized systems don’t work as well. They are inefficient, wasting money and energy. Undersized systems work too hard to heat and cool rooms. Either way, poorly sized HVAC units will have more problems and a shorter service life.