Building Envelope Efficiency Rating
Your Name (Optional)
Your Email (Optional)
What is your primary heating fuel?
Propane
Natural Gas
Electricity
Fuel Oil
What is your furnace efficiency?
60%
70%
80%
90%
Unknown
If unknown, does your furnace have:
unknown
a plastic flue
an electronic ignitor
a continuous pilot light
Estimated Annual Heating Cost
$
Cost of Electricity
$
Propane Cost (per gallon)
$
Natural Gas Cost (per therm)
$
Fuel Oil Cost (per gallon)
$
Home Square Footage (Conditioned)
Nearest City
Champaign
Kankakee
Danville
Tuscola
Bloomington
Resulting Data
Estimated BTU's required
Estimated System Efficiency
Heating Degree Days
Your Building Envelope Efficiency Rating
Excellent = Under 5
Good = Between 5 and 10
Poor = Between 10 and 15
Very Bad = Between 15 and 20
Awful = Over 20
To improve your home's Building Envelope Efficiency Rating, consider a
Home Energy Rating or a blower-door
test.
