CONCLUSIONS C & D Energy Detectives conclude: 1. The Davis House temperature data for a representative February day fell outside of ASHRAE standards of thermal comfort for > 80% of waking hours, but the house is nevertheless perceived to be comfortable with the consumption of an average of 80 kWh of heating + lighting energy per day. 2. The house has a solar resource in March of approx. 60,000 Btu/day, as estimated by location-specific sun angle and intensity, external shading, solar transmittance of the southern glazing, and the south-facing glazing area. 3. One ton of bricks did, as predicted, store sufficient solar energy to diminish thermal variation in the house by approximately 50%, estimated either by internal variation as a percentage of external variation, or, alternatively, by absolute internal temperature range. This result indicates that thermal mass adjacent to the southern glazing has good potential to utilize the incoming solar radiation both to reduce the need for heat in the winter and to diminish overheating in the summer. Mr. Davis, in turn, concludes: “I guess we should put those bricks back.” (email dated March 18, 3:05pm) Home Depot says: “No! You can’t have them back! We just finished restocking!!”