John Koeller

The Real High-Efficiency Toilets Have Arrived

Author: John Koeller

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June 07, 2007

Why discuss toilets in an energy publication? The interesting secret about toilets—and all of the other fixtures and appliances that use water—is that they are responsible for a good part of ... [continue reading]

Danger in the Shower: 2008 Forum Looks at Hot Water

Author: John Koeller

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January 02, 2009

On average, water heating accounts for 15% of residential energy consumption. In the past few years, there has been an explosion of interest in meeting domestic hot water needs more efficiently. New hot-water-generating technologies, structured plumbing ... [continue reading]

Does Replacing Toilet Fixtures Save Water?

Author: John Koeller

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January 03, 2012

Koeller and Company studied the water savings achieved with toilet fixture replacements in an urban apartment complex. [continue reading]