Resolving the Circulation Dilemma in Multifamily Buildings
Demand-controlled pumping for hot water distribution holds high value in multifamily buildings.
Q. John Koeller notes how the plumbing industry has taken advantage of the lack of any prohibition against multiple head and body spray luxury shower installations resulting in many very high flow installations (“... [continue reading]
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]
Yes, there are cute water heaters. ECO-CUTE is a Japanese trademark and nickname for heat pump water heaters that use CO2 as a refrigerant. (Cute is the pronunciation of “hot water supply” in ... [continue reading]
Steve Greenberg is a facilities energy management engineer at Lawrence Berkeley National Laboratory and a technical editor at Home Energy. Q: I have been having a discussion with a fellow worker concerning our house heating ... [continue reading]
I work for Neighborhood and Community Services in Kansas City, Missouri, in the Minor Home Repair and Weatherization program. I have worked in weatherization since 1986, and performed energy audits prior to that in Fairbanks, Alaska. ... [continue reading]
Drain water heat recovery (DWHR) devices are little-known but effective means to save hot water energy and homeowner dollars. [continue reading]
I tested a dual system for domestic hot water and space heating in a home where a furnace and ductwork were previously used for space heating. [continue reading]
The Net-Zero Energy Coalition convened the second Net-Zero North American Leadership Summit from March 3–5 as part of NESEA’...
In the hierarchy of dreaded activities, reviewing the monthly electricity bill ranks alongside stepping on the bathroom scale. As with ...