Moving hot or cold air in homes, sans ducts

by grmeyers

AireShare ductless system from Tjernlund Products

This much is true with most home heating, cooling and ventilation designs: no matter how appealing or green an abode might be, a person can usually pinpoint the cold spots in a house or the ones that are too warm.

Not to fret.

A Minnesota-based company Tjernlund Products, Inc. – sells a number of low-cost ductless systems that move air from one part of the house to another, whether through walls or through floors.

Here are two of its products:

  • AireShare™ Level-to-Level Fan – Can move air from level to level. The unit either blows air up to a higher level or, when installed in the opposite orientation, down to a lower level. It can move stove or fireplace heat up or down a level or move cool air from a basement up to the main living space.
  • AireShare Room-to-Room Transfer Fan – The tool for homes with split systems; pulls cool air from floor level or warm air from ceiling level to provide more even distribution.

This  case study from the Tjernlund website is worth reading:

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Looking at top sustainable colleges for 2011

by grmeyers

Guest correspondent, Kate Willson, reports on some of this country’s top sustainable colleges for 2011. She writes regularly about colleges and sent this note accompanying her report: “I am not associated with any of these schools. I honestly chose these schools because I felt that the schools that made A’s were quite repetitive (they made the same initiatives and reforms.) To add some variety, I also wanted to highlight what other of the schools were doing.”

The GreenReportCard.org website and the College Sustainability Report Card are both initiatives of the Sustainable Endowments Institute. The Institute is a nonprofit organization engaged in research and education to advance sustainability in campus operations and endowment practices.

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LED Economics = Sensible Solutions

by grmeyers

LED lighting system from Eco-story provides ambiance and cost-savings at Timberland stores. Photo: Timberland

Less than a year ago, Eco-story LED Lighting Solutions was selected by The Timberland Company (NYSE: TBL) to “help its stores make an eco-friendly shift in lighting.” The results are impressive – both economically and environmentally.

Timberland, an outdoor footwear and apparel company, opted to use Portland, ME-based Eco-story to create special LED track lights that would improve overall ambiance, while saving money.

According to a recent press release, 10 months after the LED system installation, the company has saved approximately $100,000 in electricity costs for 50 U.S. Timberland stores that were retrofitted.

Generally this meant that Eco-story replaced up to 150 50 to 90-Watt halogen spotlights in each store with 10-Watt Par 30 color-matched LED bulbs.

“Eco-consciousness led the way in our endeavor to make lighting changes, but with the Federal tax incentive and our lowered electric bill, the financial savings has been a significant advantage,” said Al Buell, Timberland store planning and construction project manager.

According to the release, Eco-story LED bulbs are predicted to last 6 to 10 years.  As for failure rate, less than one percent of over 5,000 lamps failed and replacement was not difficult.

The Eco-story ECO-PAR-30-WW LED lamp features lighting-class Cree XLamp LEDs.  For more information about Eco-story and its products, visit its website.

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Sunflower brings natural light inside

by grmeyers

Philip S. Miller Library, Castle Rock, CO Photo: Sunflower Corp.

Those wishing to have the best natural light for interior spaces may want to take a look at Sunflower Corporation and its Sundolier®, a lighting system designed to deliver high quality indirect daylight to large spaces.

The line of “daylighting” products developed at the Boulder, CO-based Sunflower Corporation are designed with this objective: to provide sustainable natural lighting that meets the high quality lighting demands of education, office, retail and industrial markets.

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Low impact woodland home a delight to behold

by grmeyers

Simon Dale's low-impact home in Wales

This marvelous and imaginative home was built in Wales by Simon Dale.

He writes: “This building is one part of a low-impact or permaculture approach to life. This sort of life is about living in harmony with both the natural world and ourselves, doing things simply and using appropriate levels of technology. These sort of low cost, natural buildings have a place not only in their own sustainability, but also in their potential to provide affordable housing which allows people access to land and the opportunity to lead more simple, sustainable lives. For example this house was made to house our family whilst we worked in the woodland surrounding the house doing ecological woodland management and setting up a forest garden, things that would have been impossible had we had to pay a regular rent or mortgage.”

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