Of course, the high cost of replacing the air conditioner is the major hindrance. High-efficiency systems with SEER ratings above 16 generally cost at least $3,500, but the full project could cost much more. To maximize efficiency, air conditioners should probably be replaced at the same time as the furnace. The heating and cooling systems typically share a blower motor, and an old, inefficient motor will reduce the efficiency of the new air conditioner.
As noted above, many homes have oversized air conditioners. If you have added insulation or otherwise made your home more energy efficient, you may be able to upgrade to a smaller replacement air conditioner. Click here to estimate the necessary size of your air conditioner.
When you are gathering estimates for replacement HVAC systems, reputable contractors should spend a significant amount of time in your home evaluating the size of your home, and your windows and insulation. They will also inspect the duct system, and measure air leaks to size up your needs.
Replacing an air conditioner can be a daunting expense, but it can improve comfort and significantly lower energy bills, making the cost worthwhile.