Featured Article: How Green Building Works
"Green" is one of the hottest buzzwords in construction. Proponents say green building is environmentally friendly -- and also healthier and more cost-efficient. See more »
energy efficiency library
Increasing the energy efficiency of a house is a smart and affordable home improvement. Learn about ways to improve the energy efficiency of your home.
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Articles 1-20 of 24
Are ice blocks better than air conditioning?
Air conditioning with ice blocks is taking root among some of the world's most powerful companies. Learn how air conditioning with ice blocks works.
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Five Ways to Greenify Your Home
If you've been overly saturated with green tips and all the green products on the market today, rest assured our tips are straightforward and truly environmentally friendly. You can toss the other ideas in the compost bin.
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How Bamboo Flooring Works
Can the same stuff in my placemat make wood floors? What does bamboo have to do with green building?
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How Energy Star Works
The Energy Star program helps cut down on the energy drain from computers and home appliances. But how much energy do Energy Star products save? And how much money will they save you?
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How Green Building Works
"Green" is one of the hottest buzzwords in construction. Proponents say green building is environmentally friendly -- and also healthier and more cost-efficient.
See more »
How green is a self-contained composting toilet?
Do you think you're pretty green? Would you be willing to trade your comfortable flushing throne for a composting toilet? We thought not. But they might not be as bad as you think.
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How LEED Certification Works
Let's say you're building a house. You want to "build green," but where do you start? Most likely, you'll turn to LEED.
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How many solar cells would I need in order to provide all of the electricity that my house needs?
How many solar cells would I need in order to provide all of the electricity that my house needs?
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How Smart Homes Work
Wouldn't it be nice to have your favorite song start up the moment you walked in the house? Or to get the coffee brewing from bed? Smart homes can do all those tricks, and you might be able to afford one, even if you're not Bill Gates.
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How Smart Windows Work
With energy bills on the rise, homeowners are looking for new ways to use less power around the house. A cutting-edge window technology called the "smart window" allows consumers to fully or partially block light by turning a knob or pressing a button.
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How Straw Bale Houses Work
Remember the story of the little pig who built a straw house, only to have the big, bad wolf huff and puff and blow it down? Nowadays, that pig would have a sturdy, energy-efficient home.
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How the ZeroHouse Works
This house uses the sun to power its refrigerator, gravity to pump water through its pipes and bacteria to break down its trash. How does it redefine green design?
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How Tree Houses Work
Tree houses are no longer kids-only hideouts. Adults taken with Swiss Family Robinson fantasies are building fully appointed luxury tree dwellings. So how do you choose a tree?
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How Yurts Work
Before McMansions and developments, before condos and co-ops, yurts dotted the land. Why do campers and nomads think these simple circular dwellings are yurtastic?
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What is gray water, and can it solve the global water crisis?
As the world confronts a water crisis, more people are recycling gray water at home. Left over from bathing or washing clothes, gray water can be used to water your garden.
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What is this bumpy stuff on my ceiling that looks like popcorn or cottage cheese?
What is this bumpy stuff on my ceiling that looks like popcorn or cottage cheese?
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What's more sustainable, mass-produced or handcrafted furniture?
One of these chairs is not like the others, especially if it's built locally and made from materials that meet environmental guidelines. How can you tell the difference when you're furniture shopping?
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What's the one thing you can do to your home to save the most energy?
There are lots of ways to improve your home's energy efficiency, but the best thing to do is to make sure you have enough insulation to seal your home's "envelope."
See more »Home Heating and Cooling Efficiency Tips
As energy prices rise, most homeowners are concerned about keeping heating and cooling costs down. Many simple steps can help reduce your energy usage. Learn how to keep those energy bills under control.
See more »Home Energy-Saving Systems
When you work on your home to make it more energy efficient and less expensive to maintain, you must also consider safety issues. Learn about making safe adjustments to your home to save energy.
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