Harrje D.T.
Bibliographic info:
Princeton University, Center for Environmental Studies report no. 29 #DATE 01:06:1976 in English

Describes plan to retrofit 25 townhouses at Twin Rivers evaluating retrofits by instrumenting each house to record energy consumption, temperature, window and door opening and furnace operation. Aim of the first round of retrofits was a payback period of no more than three years. Describes fourretrofits A,B,C and D. A,C and D improved attic and cellar insulation and insulated the heating system. B aimed to limitthe amount of air infiltration from cracks around doors and windows by weatherstripping. Early results showed gas savings of the order of 25% and electrical savings of 10%