Resolving the Circulation Dilemma in Multifamily Buildings
Demand-controlled pumping for hot water distribution holds high value in multifamily buildings.
Install high-efficiency showerheads and faucets in the average U.S. house, and the water meter will report about 6,000 gallons of water saved in one year. Not bad. But the savings continue. If the house has an electric water heater, the electric meter will show about 600 kilowatt-hours savings; if it's a gas heater, the savings will be 30 therms. [continue reading]
The Sacramento Municipal Utility District (SMUD) serves roughly 60,000 residential customers with electric water heaters, each consuming up to 5,500 kWh annually. [continue reading]
With an average initial price tag of $2,500, solar water heaters--which are usually designed for households of four or more--have long been expensive. [continue reading]
Domestic hot water heating accounts for 15-27% of the total energy use in a typical Minneapolis apartment building, not counting energy used for lighting and electric appliances. [continue reading]
According to E Source in Boulder, Colo., optimal setpoint for residential water heaters is 111deg.F. [continue reading]
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