Resolving the Circulation Dilemma in Multifamily Buildings

Demand-controlled pumping for hot water distribution holds high value in multifamily buildings.

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Air-to-Water Heat Pumps for the Home

Author: Steven Bodzin

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July 01, 1997

Over a third of America's domestic hot water is heated by electric resistance elements. For many residences, electric resistance is a more expensive method of water-heating than fossil fuels or solar, but there are buildings where these latter alternatives aren't feasible. [continue reading]

Dampers, Reclaimers, and Pumps--Oh My!

Author: Doug Johnson and Edward Wyatt

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July 01, 1997

Next to space conditioning, water heating is the largest energy user in most homes. However, opportunities for savings aren't always obvious. [continue reading]

Take It Outside: Water Heaters Get Fired Up

Author: Ted Rieger

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November 01, 1996

In much of the United States, converting electric water heaters to gas can reduce household energy costs. However, many properties-particularly multifamily homes-have space limitations or venting problems that make such a retrofit impossible. [continue reading]

Try These On for Size: New Guidelines for Multifamily Water Heating

Author: Fredric S. Goldner

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July 01, 1996

Energy professionals have long been frustrated by the lack of reliable data for sizing domestic hot water (DHW) equipment in multifamily buildings. [continue reading]

Water Heaters and Energy Conservation- Choices, Choices!

Author: Larry and Suzanne Weingarten

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May 01, 1996

The most useful answers can be given if the questions tie into the broader context of getting the most from the whole water-heating system. [continue reading]

Remodeling Bathrooms Let the Energy Savings Flow

Author: David Johnston

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November 01, 1995

People remodel more than 5 million bathrooms every year in the United States. Sometimes this just means replacing lighting and plumbing fixtures. More extensive remodels involve building an addition or gutting and redesigning an existing bathroom. [continue reading]

Oh, How I Wish You Could Have Seen ISH!

Author: Dan Holohan

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November 01, 1995

If you've ever pulled into a gas station in Europe, you know these folks are serious about energy conservation. [continue reading]

The Best Boiler and Water Heating Retrofits

Author: Mary Sue Lobenstein and Martha J. Hewett

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September 01, 1995

When the Minneapolis Energy Office (now the Center for Energy and Environment) first addressed the issue of improving energy efficiency in multifamily buildings in 1981, the task was a little daunting. [continue reading]