Energy Savings Calculator

1. Surface area to be upgraded sq. feet.
2. Heating Degree Days (Heating Degree Day Lookup Map)
3. Cooling Degree Days ( Cooling Degree Day Lookup Map)
4. Enter R Values (Help on looking up R values)
   1. Current R Value US R Value
   2. New Total R Value US R Value
5. Pick your fuel type below
   1. Natural Gas
   2. Fuel Oil
   3. Propane
   4. Electricity
6. Enter fuel cost
7. Furnace Efficiency Very High (90%) High (80%) Medium (67.5%) Low (60%)

Notes:

If you are starting with an uninsulated wall, ceiling or floor, it is important to make a good estimate of the current R value.   See this helpful R value help page.
This calculator is providing an estimate and should be considered a guide for potential savings as opposed to a guarantee of savings.

Greenhouse gas emissions are high for electricity because the electricity is assumed to be generated in a coal fired power plant.  Coal plants are only about 30% efficient, and coal is a very high Carbon fuel.  About 50% of the power generated in the US is from coal fired power plants -- these coal plants account for about 80% of all US electric power generation CO2 emissions.

Additional Resources:

The Department of Energy insulation calculator can help you determine the amount of insulation you need for your home.

It is available on-line at : http://www.ornl.gov/~roofs/Zip/ZipHome.html.