How to Perform a Heat-Loss Calculation — Part 2

Subtitle:

Simple ways to calculate transmission losses and exfiltration losses

Images:

[![][1]][2]

To continue [last week's discussion of heat-loss calculation methods][3], let's consider a simple rectangular building, 20 feet by 30 feet, with 8-foot ceilings. Let's assume it has an 8-foot-high basement with uninsulated concrete walls; the below-grade portion of the basement is 7 feet high, with 1 foot above grade.

To keep things simple, we'll assume that the house has a flat roof, and that each side of the house has two windows (each 3 ft. by 4 ft.) and one door (3 ft. by 7 ft.). The house doesn't have a chimney.

[1]: http://www.greenbuildingadvisor.com/sites/default/files/imagecache/blog-river/Heat loss illustration.jpg (Heat flow)
[2]: http://www.greenbuildingadvisor.com/blogs/dept/musings/how-perform-heat-loss-calculation-part-2
[3]: http://www.greenbuildingadvisor.com/blogs/dept/musings/how-perform-heat-loss-calculation-part-1

URL: http://www.greenbuildingadvisor.com/blogs/dept/musings/how-perform-heat-loss-calculation-part-2