Trunk and branch systems are the most common type of hot water delivery. (LBNL)

Lawrence Berkeley National Lab (LBNL) is conducting a study to explore the efficiency of hot water distribution systems in California residences.

Have you had the experience of waiting for shower water to get hot? You wait until the shower reaches a comfortable temperature as the water goes down the drain. Both water and energy could be saved! Information about hot water and natural gas use in homes will enable the development of effective conservation strategies for both energy and water.  

To be eligible to take part in this study, you must be at least 18 years of age, live in a Bay Area or Sacramento Area home that you own with a single residential water heater, speak English in your home, and have internet access over which the monitoring system can transmit data. If you are interested in participating, go to https://sites.google.com/a/lbl.gov/hotwater/home and submit the web form by 6/30/2013. Participants who complete the study will be provided a total of $100.