When it comes to sizing your new heating or air conditioning system, it’s important to remember that bigger isn’t always better. An oversized system might sound like a good investment, but it can have a big negative impact on your energy bills.
Your contractor should do a thorough analysis of your home and existing systems before making a recommendation and giving an estimate. Beware of dealers who make quick judgments based only on the square footage of your home.
Make sure your dealer follows industry guidelines, such as those certified by the American Society of Heating, Refrigerating & Air Conditioning Engineers, the Air Conditioning & Refrigeration Institute and the Gas Appliance Manufacturers Association.
The U.S. Department of Energy’s sizing checklist includes:
- The local climate
- Size, shape, and orientation of your house
- Insulation levels
- Window area, location, and type
- Air infiltration rates
- The number and ages of occupants
- Occupant comfort preferences
- The types and efficiencies of lights and major home appliances (which give off heat).
Finding a qualified dealer
If you live in Alliant Energy’s utility service area [Iowa, Minnesota, Illinois and Wisconsin], you can find qualified heating and air conditioning contractors in your area by using our online Dealer Locator.
These professionals participate in Alliant Energy's Efficiency Solutions Participating Dealer program, which ensures energy expertise, quality workmanship and excellent customer service.
They'll help you choose the right equipment for your needs, and they'll make energy efficiency a top priority.
If you’re not an Alliant Energy customer, visit the Air Conditioning & Refrigeration Institute or Gas Appliance Manufacturers Association sites to locate certified contractors near you. |
