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Efficient Hot Water Distribution

Building Science-to-Sales Translator

Efficient Hot Water Distribution = On-Demand Hot Water

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Technical Description

Some showers and fixtures run cold for a long time before the hot water finally arrives. And this adds up. For example, every 60 seconds of shower run-time amounts to about three gallons of wasted water down the drain. Homes can be designed with plumbing layouts that deliver hot water much more efficiently. DOE’s Zero Energy Ready Home program requires that no more than 0.6 gallons of hot water be discharged from the fixture farthest from the water heater before hot water reaches the tap.

Alternate Terms

Water and Energy-Saving Hot Water Distribution
On-Demand Hot Water Technology

On-Demand Hot Water
Sales Message

On-demand hot water systems distribute water more efficiently with the added convenience of not waiting for hot water. What this means to you is the great feeling that comes from not wasting thousands of gallons of water needlessly each year along with money saved on water bills. Wouldn’t you agree water is too important to waste?

Disclaimer

This content is a work created with funding provided by the United States Department of Energy under Contract no DE-AC05-076RL01830 for the operation of Pacific Northwest National Laboratory. The information and guidance provided by Pacific Northwest National Laboratory (PNNL) in the content are intended solely for educational purposes only and do not constitute formal training or certification. It is provided with the explicit understanding that neither the United States Government nor the United States Department of Energy, nor the Contractor, nor any or their employees, nor any jurisdiction or organization that has cooperated in the development of these materials, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness or any information, apparatus, product, software, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof, or Battelle Memorial Institute. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Viewers assumes full responsibility for all actions that they may take from information provided in this content including ensuring the safety, code compliance, and proper functionality of any products they choose to install. Installation and use of such products should be performed in accordance with local regulations and manufacturer instructions.