New added feature: Basement walls & floors are now included
A load calculation program based on Manual J, designed to be quick and easy to use.
It calculates the amount of heating and cooling BTU's needed for the whole house. Getting started:
Select a State or Province; afterwards you will then be given a choice of cities, airports or other major locations.
After the location is chosen enter in the the structure values, insulation etc..
On the bottom left of the screen there will be an button to click that will explain more details.
Only data for the US and Canada is listed so for other countries choose "X-Unlisted".
You can change the default values to fit your climate.
Internet Explorer users:
In version 8 or lower, some of the dropdown items may be cut off.
All comments, suggestions and criticisms are welcome.
Use this online load calculation program at your own risk.
This program has not been accredited by any organization and though
much time and effort has been spent to make it accurate there is no
guarantee to its accuracy.