Jim Lutz and Steven Lanzisera, in the Environmental Energy Technologies Division at Lawrence Berkeley National Laboratory (LBNL), are conducting this study to explore the efficiency of hot water distribution systems in California residences. You’ve likely had the experience of waiting for shower water to get hot? Until the shower reaches a comfortable temperature, the water goes down the drain (usually). Both water and energy could be saved! Information about hot water use in homes will enable the development of effective conservation strategies, for both energy and water.
This project will monitor water use in 25 households in the Greater Sacramento Area and the Bay Area, and gas use in a subset of these residences. We will install water flow and temperature sensors at each indoor water use and at the water heater, and some homes will have a non-invasive, whole house gas meter installed. These sensors will not interfere with residents’ use of water or gas. Whenever water is flowing, data will be wirelessly transmitted to a field client for upload to the database at LBNL. The monitoring will continue for approximately six months. From the collected data, we will be able to calculate the efficiency of the hot water plumbing system in actual use.
Potential Benefits of Research
This project will benefit the public in a number of ways, as research results can be used for:
To be eligible to take part in this study, you must be at
least 18 years of age, live in a home that you own in a study area 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, submit the web form by 06.30.2013: https://www.surveymonkey.com/s/LBNLHotWaterStudy. Participants will receive $50 after monitoring system installation and an additional $50 after monitoring is
completed and equipment has been removed. Please note that LBNL employees are not eligible to receive incentive.
As with all plumbing work, it is important for homeowner to monitor the plumbing work especially in the first week to make sure there are no leaks or other issues. Feel free to contact the research team at contacts below with any questions or concerns.
For major issues: call rapid response line at 510-486-7705. (Rapid response telephone number is on wireless modules and field client.)
General contact email list: firstname.lastname@example.org.
If there is a problem with a meter, email email@example.com.
If you want to quit the study, email firstname.lastname@example.org, so that we can arrange with you to come and remove the study equipment.
If you have any question regarding your treatment or rights as a participant in this research project, please contact the Human Subjects Committee at email@example.com or (510) 486-5399.