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A Case Study in Converting from Two-Pipe Steam to Hydronic Heating

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Unvented Gas Space Heaters: Drainless Sinks?

Author: Michael G. Apte

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September 01, 1996

The other day I went to the building supply store looking for materials for my kitchen remodel. [continue reading]

Radiator Valves Prevent Apartment Overheating

Author: Ted Rieger

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May 01, 1996

Energy auditors cringe when they see open windows cooling off overheated apartments on cold days. By preventing apartment overheating, thermostatic radiator valves (TRVs) can cost-effectively reduce space heating energy use, according to a recent study in New York City. [continue reading]

Choosing a Heating System That Saves Energy

Author: A.C.S. Hayden

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March 01, 1996

When something must be done about an old or inefficient heating system, the challenge can be daunting. The decision will affect comfort, energy costs, and the air quality and safety of a home for years to come. [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]

The Key to Persistence

Author: Sandra Nolden

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September 01, 1995

In a study funded by the U.S. Department of Energy and the Department of Housing and Urban Development, we looked at the savings persistence from equipment retrofits that Citizens Conservation Corporation (CCC) installed in low-income apartment buildings over the past decade. [continue reading]

Condensing Furnaces: Lessons from a Utility

Author: Jonathan Beers

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November 01, 1994

For the last several years, about 90% of the new natural gas furnaces installed in Wisconsin have been condensing furnaces. [continue reading]

Fireplaces: Studies in Contrasts

Author: A.C.S. Hayden

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September 01, 1994

Conventional fireplaces are incompatible with new, tighter housing, or with weatherized homes because of their large air requirements and the incomplete combustion products they produce. [continue reading]