Part 1: Evaluation of Mini-Split Heat Pumps as Supplemental and Full System Retrofits in a Hot-Humid Climate

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Part 1: Evaluation of Mini-Split Heat Pumps as Supplemental and Full System Retrofits in a Hot-Humid Climate

More stringent energy efficiency standards and the demand for higher efficiency are increasing the popularity of technologies such as mini-split heat pumps (MSHPs). The market for ductless heat pumps is growing 10–30% annually. The U....

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The Best Boiler and Water Heating Retrofits

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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]

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The Key to Persistence

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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]

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Condensing Furnaces: Lessons from a Utility

archive CONTENT
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]

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Fireplaces: Studies in Contrasts

archive CONTENT
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]

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Ground-Source Heat Pumps Gaining Ground

Author: Ted Rieger
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July 01, 1994

Ground-source heat pumps (GSHPs), also called geothermal heat pumps or ground-coupled heat pumps, are gaining popularity as efficient space-conditioning systems. [continue reading]

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Looking for a Few Good Contractors

Author: Jim Clark
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July 01, 1994

When it comes to heating and cooling systems, consumers are concerned with comfort, as well as price, according to an independent study. Contracting Business magazine wanted to determine what consumers want from their heating and cooling systems. [continue reading]

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Some Like It Hot

Author: Alan Meier
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March 01, 1994

Almost everybody knows when they are cold, but it is difficult to predict an individual's thermal comfort for a particular set of conditions. [continue reading]

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Downsizing Steam Systems

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November 01, 1993

Most steam heating systems in use today are oversized, and downsizing those systems can deliver attractive savings. [continue reading]

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Jim Gunshinan for Leo Ranier, LBNL

More "Buzz" from ACEEE Summer Study—The Invisible Energy Mortgages in New Homes

You probably never considered the power consumption of those Ground-Fault Circuit Interrupter outlets (fondly known as GFCIs) in bathrooms, kitchens, ...

Two National Brands Join Forces Demonstrating Unity in Home Energy-Efficiency Rating Systems

Lindsay Bachman

Two National Brands Join Forces Demonstrating Unity in Home Energy-Efficiency Rating Systems

The Residential Energy Services Network (RESNET) and Pearl Certification are now collaborating to ensure that the Home Energy Rating System (...

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