Demand Controlled and Energy Saving Pumps
Two authors discuss how these water pumps save money by working only as hard as they need to
America is a thirsty nation. Between 1950 and 2005, the U.S. population doubled, while our demand on water supplies more than tripled. Although water is relatively inexpensive, the cost to repair our nation’s aging ... [continue reading]
Q . Is it feasible to retrofit cast-iron single-pipe steam radiators to work on hot water from a new combined heating/domestic hot water (DHW) system? And if so, would it ever make sense ... [continue reading]
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]
Marge Anderson is the Executive Vice President of Seventhwave, a non-profit that advances environmental and economic sustainability. Her passions include ...
Much like the race to build a better mousetrap, it often seems like there’s an endless stream of ...