The affect on your climate control bill is minimal, based on the fact that the EZ Breathe draws air from the very lowest part of the home. This air is always the coldest air in the home to begin with, and due to its damp nature it is also the hardest to heat. Once in operation the EZ Breathe moves the colder air out, and since dry air is easier to heat than damp air, your heating system does not work as hard to maintain the desired temperature.