Residential Energy Efficiency Project (R.E.E.P.)

a project of the Faculty of Environmental Studies, at the University of Waterloo, and the Elora Centre for Environmental Excellence. The overall vision for R.E.E.P. is citizen action for a healthier, more sustainable community. R.E.E.P. uses the EnerGuide for Houses home energy-use modelling system to provide a comprehensive report of heat loss in your home, and advice for energy improvement. In other words, we'll give you the facts to make informed home energy upgrade decisions.

http://www.fes.uwaterloo.ca/Research/REEP/