Hydroforce pump for rainwater harvesting World Pumps The pump features an alloy bulkhead, pressure release gap and patent-pending twin chamber design which prevents ingress of water to motor, electrical components and to bearing oil. The Hydroforce pump is pressure sensitive, and turns itself off until ..
To read what manufacturers and distributors say about it, you’d think autoclaved aerated concrete (AAC) was some kind of new, space-age environmental miracle.
Although it certainly has some nifty properties, AAC isn’t new and isn’t miraculous–but it’s certainly popular in Europe, and has been for decades; according to one source, it accounted for 60% of all new construction in Germany in 2006. It has enjoyed pretty flat market share (of near zero) here in the U.S., though, since it was first introduced in the 1990s.
Is there space for AAC in the U.S. market?
There’s nothing like the crackle, warmth and glow from a real wood-burning fireplace. But for apartment dwellers without an existing fireplace, alternatives to the traditional chimney and flue are necessary. Ventless designs powered by eco-friendly biofuel are now available in modern materials and as ceiling-mount, wall-mount and floor standing units. Here are a few sleek designs that won’t leave you feeling left out in the cold.
The Army is still going for Gold and Platinum despite recent legislation calling a halt to LEED spending. Fort Carson is piloting net-zero energy, water, and waste–and expects to meet that target by 2020. The federal government has been one of the biggest supporters of LEED certification in the last few years, with the General Services Administration (GSA) requiring basic LEED certification for all federal buildings starting in 2003 and then upping that requirement to LEED Gold in 2010 .
2011 marked Sustainable Industries’ sixth annual competition where more than 100 entries were received and evaluated. The requirements to make the top ten list are environmental performance, scalability/market impact, innovativeness, design aesthetic, plus value and compatibility with LEED.
The top ten were:
