Eastern Illini Electric Cooperative

Building Envelope Efficiency Rating

This interactive chart allows you to estimate your home's Building Envelope Efficiency Rating.

Fill in the yellow fields on the next page.
The resulting data is automatically updated.
Print the results by clicking the "print" button.
Please do not use the "$" symbol when entering dollar amounts.
Click the "submit" button to send your data for follow-up.

This sample chart is derived by dividing BTU's by heating degree days divided by home square footage.This sample is only an estimate. Call 800-824-5102 for more information.

Building Envelope Efficiency Rating

Fill in the yellow fields on the next page.

The resulting data is automatically updated.

Print the results by clicking the "print" button.

Please do not use the "$" symbol when entering dollar amounts.

Click the "submit" button to send your data for follow-up.