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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Integrated Heating and Ventilation: Double Duty for Ducts

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May 01, 1993

Building codes in Washington state and Bonneville Power Administration's specifications for new residential construction require mechanical ventilation systems. [continue reading]

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East Meets West: Gas-Fired Heat Pumps

Author: Nance Matson
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September 01, 1992

As the 1990s unfold, look for a new kind of energy-efficient heating and cooling appliance-a heat pump powered by an internal combustion engine that runs on natural gas. [continue reading]

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Once Heated, Twice Used

Author: David Bohac
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July 01, 1992

Dual-integrated appliances-water heaters used to provide both domestic hot water and space heating-have seen increased use in recent years, primarily in the warmer climates of the mid-Atlantic states. [continue reading]

Common Problems with Cold Weather Ventilation

Allison Bailes

Common Problems with Cold Weather Ventilation

When I woke up Saturday morning, the temperature outdoors was -40 degrees†. The wind chill was -100 degrees! It ...

Using God Talk—or Not—to Help the Planet?

Jim Gunshinan

Using God Talk—or Not—to Help the Planet?

I am always impressed with the work of Susan Shelton and the Shelton Group. So an email message with the ...

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