Spotlight Article:
Resolving the Circulation Dilemma in Multifamily Buildings
Demand-controlled pumping for hot water distribution holds high value in multifamily buildings.
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Tankless Water Heaters
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Q: It seems like I waste a lot of water while waiting for the hot water to get to my faucet. I have heard that tankless water heaters can ... [continue reading]
Building a Boiler Side-Arm
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A boiler is generally more fuel efficient than a standard gas water heater, especially when the boiler is fully loaded. [continue reading]
Money Down the Drain: Controlling Hot Water Recirculation Costs
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Energy use for domestic hot water (DHW) is the second largest component of a multifamily building's energy budget; it is surpassed only by heating in cold and mixed climates. [continue reading]
Fuel Use in Multifamily Buildings
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Multifamily buildings with more than five units make up about 17% of all U.S. housing, yet scant information exists on the fuel use of these building in specific locations (see "Multifamily Statistics"). [continue reading]
Ground Source Heat Pumps Dig In
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Ground source heat pumps (sometimes called geothermal heat pumps, Geo-Exchange Systems, or GHPs) most often exchange heat with the ground by means of a ground heat exchanger. [continue reading]
Calculating Water Heater Energy Use
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Have you ever wanted to calculate how much energy a water heater would use annually in a given household? To make this task easier, Lawrence Berkeley National Laboratory (LBNL) has developed a straightforward equation that produces results close to those of simulation programs--without their baffling complexity. [continue reading]
Making Solar Hot Water Affordable
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In 1995, a group of agencies in Florida teamed up to bring low-cost solar systems to low-income households so they could save money on their utility bills. [continue reading]
Hot Water Improvements Top Warm Climate Weatherization Measures
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Reducing hot water costs is the most cost-effective way to save money for low-income housing in warm climates. This is one conclusion that can be drawn from a new study on the cost-effectiveness of energy-saving measures for low-income housing in warm climates. [continue reading]
Macie Melendez
Adventures in Blower Door Testing
When Steve Mann (of Home Energy Services) asks you to come along for the first blower door testing in a ...
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