how much money can I save by changing out my 10seer central AC unit to a 13 seer unit.?
Answers:
though its hard to figure, cause of different "Home Managment" situations. e.g. visiting relatives, house training new pet, or a childs new friend who never completly shuts the door when vistiting. But you should enjoy 10-15% annual savings, if you keep the filter clean or replaced and condensor coil clean and air movement free of obstructions. If financially possible, it would be less exspensive to replace all the components at the same time. average life of a system is around 19 years.
Other answers:
maybe 10% of the annual utility cost
maybe 10% of the annual utility cost