Results of the walnut creek house doctor project.

Presents the results of an experiment designed to measure the additional energy savings achieved by adding two person days of house doctoring to a standard energy audit. Compares a house doctor and audit treatment to an audit alone and to a passive control group. Treatments were applied to randomly selected groups of 10 houses each in Walnut Creek California. The difference in energy savings between the treatments, based on monthly utility bills, were not statistically significant due to wide variation in savings and the loss of several houses from each group. Predicted energy savings based in part on measured air leakage area reductions, indicate that the retrofit package completed during house doctoring has a cost of conserved energy of four dollars/GJ.