Energy efficient federal tax credits extended for a year

by Shana Fong on December 21, 2010
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A few days ago, Congress and President Obama passed legislation that extends federal tax credits for energy-saving upgrades another year. The tax credits were set to expire at the end of 2010 but have been extended until December 31, 2011. However, the incentive has been reduced to 10%, up to $500.

Included are provisions limiting window incentives to $200, oil and gas furnace and boiler incentives to $150-200, and water heater and wood heating system incentives to $300. As part of the legislation, Congress tightening the specifications for oil furnaces and boilers and gas boilers to 95% efficiency, up from the 90% efficiency in current credit.

10 Common Heating Mistakes

by Shana Fong on December 15, 2010
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Here are some useful, eye-opening tips on 10 common mistakes to avoid when heating your home.

1. Maintaining a constant temperature

Cause: A persistent myth suggests that you can save energy by leaving the house at a comfortable 68 degrees (a widely recommended winter setting), even when you are sleeping or away at work.

The idea is that it takes more energy for the furnace to reach a comfortable temperature than to maintain that temperature.

Effect: You could miss out on significant potential energy savings by not using a programmable thermostat and adjusting the temperature overnight and during the workday.

Though the impacts of adjusting the thermostat vary based on your climate and other factors, studies show that knocking the temperature down by 10 degrees for eight hours per day can cut heating bills by 5 to 15 percent.

Sure, the furnace will cycle on for a longer period to return to the more comfortable temperature, but it will be far outweighed by hours of savings when it didn’t have to work as hard.

2. Cranking up the temperature to warm up the house

Cause: You come home in the middle of the day to a cold house. You want to warm back up to 68 ASAP, so you crank the dial up to 78 to get the furnace working harder and faster.

Effect: No time is saved in reheating the house. Most furnaces pump out heat at the same rate no matter the temperature. They just cycle on for a longer period to reach a higher temperature.

The furnace will take the same amount of time to return to 68 degrees regardless of the thermostat setting. By cranking up the thermostat, you are likely to overheat the house past 68 degrees and waste energy. Just reset the thermostat to 68, make some hot chocolate, and wait.

3. Closing off vents in unused rooms

Cause: You don’t want to waste energy heating rooms you aren’t using.

Effect: Again, this just wastes energy and makes your furnace run inefficiently because it changes the air pressure in the whole system.

Experts recommend never shutting off more than 10 percent of vents. Sealing your ducts is a more efficient way to save energy.

4. Using the fireplace

Cause: You found some free firewood on Craigslist and think you can burn up some free heating energy while enjoying a romantic fire.

Effect: While we can’t make any promises about increased romance, we can predict increased energy bills. An open fireplace flue may suck more cold air into the house than the fire can radiate into the living space.

5. Using electric room heaters

Cause: You spend most of your time in a couple of rooms, so you figure you will just heat them with space heaters.

Effect: This could lead to higher energy bills and greater fire risks. Generally, a central gas heating system is cheaper and more efficient than a set of electric room heaters. Electric heaters also can be a fire hazard.

There are exceptions. A single energy-efficient space heater in a small, well-insulated room can save energy if the central heater is switched off.

6. Switching to electric heating

Cause: Electric heaters are more efficient than fuel-based systems, so they must be cheaper and better for the environment, according to this popular idea.

Effect: In most areas, simply switching to electric heat leads to higher energy bills and a bigger carbon footprint. Your heater may be more efficient, but most U.S. homes are still linked to coal-fired power plants. These coal plants and their transmission systems are extremely inefficient.

Of course, it’s a different story if you have a large photovoltaic solar array or your utility company uses renewable energy.

7. Replacing the windows

Cause: Those big pieces of glass get so darn cold. They must be the reason your house is so drafty.

Effect: You could spend a lot of money to only take care of part of the problem. Windows must be installed properly to avoid drafts, gaps, and leaks.

Moreover, more heat is typically lost through poorly insulated walls and ceilings than through windows.

8. Replacing the furnace first

Cause: You blame high energy bills on an old, inefficient furnace.

Effect: Your energy bills will still be higher than necessary if you don’t start with cheaper, smaller upgrades to improve the energy efficiency of your home, such as caulking around windows and doors and adding insulation.

9. Upgrading to the most efficient furnace on the market

Cause: You want the sleekest, most energy-efficient furnace available because it will be the most cost effective as well.

Effect: You may end up replacing an over-sized furnace with another (albeit more efficient) over-sized furnace. The U.S. Department of Energy reports that most U.S. homes have over-sized HVAC systems.

Again, insulate and weatherize to maximize efficiency, then get the smallest system that will comfortably meet your heating needs, which will be substantially reduced. Also make sure it is professionally installed.

10. Using incandescent light bulbs for heating

Cause: Incandescent bulbs give off more heat than light, so they must be warming up the house.

Effect: It is hard to see this logic as anything but a weak excuse for holding on to the Edison bulbs rather than switching to CFL and LED lighting.

In fact, one German entrepreneur is marketing incandescent bulbs as “heat balls” to skirt EU laws against the old-style bulbs. However, I doubt he is keeping cozy this winter simply by sleeping with the lights on.

Source: Yahoo Green

Time Running Out For Energy Tax Credits

by Shana Fong on October 27, 2010
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Homeowners only have two more months to take advantage of up to $1500 in tax credits for energy upgrades. Eligible improvements include insulation, air sealing, high efficiency furnaces, and more.

Cut home energy use by 20-40% just by doing basic measures such as sealing and insulating your house. Find out how you can benefit from these tax credits before they expire on December 31, 2010.

The Great Escape

by Shana Fong on July 19, 2010
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The gaps you can find around the windows and doors of the average American house add up to the equivalent of a hole in the wall that measures 10 inches by 10 inches.

Your house has more leaks than the CIA. There are cracks all over the place. Your doors and windows don’t quite meet their frames; there are tiny spaces where the walls almost join the floor; there are open areas around your electrical and plumbing outlets. And these little gaps eat energy. In fact, an amazing amount of heat in the winter – or cool air in the summer – escapes through them. But you have two simple weapons to fight with: caulking and weatherstripping.

Energy Facts

  • Caulking and weatherstripping an electrically heated home can keep some 1,000 pounds of CO2 out of the air. So if 1,000 of these homes were weatherized, over a million pounds of CO2 would be saved.
  • Believe it or not, stopping air infiltration can reduce your home’s heating and cooling bills by up to 40%.
  • People are concerned that although weatherstripping may save energy, it will keep fresh air out of their homes. While it’s true that some ventilation is necessary, it’s really not much of a problem – a typical house may get twice as much fresh air as it needs. In other words, the air is probably flying out of your house as quickly as you’re heating or cooling it.

Caulking vs. Weatherstripping

  • Cracks without any moving parts – like the places where a wall in your house meets the outside edge of a window frame, or two other dissimilar materials come together – can be sealed with caulk.
  • The places where doors and windows close into their frames can be sealed with weatherstripping – cleverly designed strips of felt, rubber, metal, or plastic that fill the spaces around doors and windows, and compress when you shut them.
  • Weatherstripping materials come in many styles. Some are self-sticking, so you don’t even need a hammer to install them. Others must be nailed on. Still others are crafted so pieces on the frame and the door lock together when the door closes.
  • One of the trickiest places to weatherstrip is where the door meets the threshold. Special “shoes” and “sweeps” are available to stop these air leaks.
  • Besides saving energy, weatherstripping and caulking have an additional benefit: By stopping drafts, they’ll make your home more comfortable.

Leak Patrol

  • Some evening, when your house is at least 20°F warmer than the outdoors, hold your hand up to various places around windows and door frames. If you feel any drafts, the windows and door frames need weatherstripping.
  • You can also use a smoking incense stick to look for drafts. Hold the stick near places you think might have cracks; if the smoke dances or gets sucked in, you’ve found a place to seal.
  • Many of the biggest air sealing opportunities are up in the attic and below your floors. For these harder-to-reach leaks, it’s a good idea to call in a trained professional such as Recurve to quickly identify and remedy your home’s major leakage areas.

Excerpted from 30 Simple Energy Things You Can Do To Save The Earth, by The EarthWorks Group.

Drafty House? New Windows May NOT be the Solution.

by Adam Winter on February 21, 2010
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We hear this question from homeowners all the time:

I think I need to replace my windows because I can always feel a cold draft when I am next to them. Are there any alternatives, since it’s such a pricey upgrade?

Surprising to many, replacement windows are not always the best solution to cold drafts – particularly for homeowners on a tight budget. So before running out to the local window retailer, be sure to consider other possible causes for drafts and their (often times) less expensive solutions.

Typically, the cold feeling you get when standing by a window is caused by a combination of radiant heat loss as your home’s heat is drawn directly through the glass, and air leaks that allow cold outside air to flow through your home. Swapping single-pane windows with double-pane replacements will help with radiant heat loss, but if your house isn’t well sealed and insulated, investing in costly new windows might not solve the problem.

Draftiness is usually the result of warm air rising and escaping into your attic through leaks in walls, ceilings and can lights. As the warm air escapes, it is replaced by cold air that flows in from poorly sealed crawlspaces and other low-lying areas. That’s when you feel the drafts.

Finding and sealing air leaks can have a huge impact on interior comfort. The average home leaks 100 percent of its heated air every hour. At Recurve, we prefer leakage rates closer to 35 percent, which seriously reduces drafts and energy waste.

In most homes, windows only account for a small fraction of the air that leaks out. And because replacement windows are such a big investment, it’s usually more cost-effective to tighten your home first by improving insulation and sealing air leaks– particularly in the attic and crawlspace. Your home will also feel warmer if you close your blinds or drapes at night to reduce the amount of radiant heat loss.

In any case, it’s best to begin with a professional audit of your home’s energy performance. By conducting a thorough inspection of the various elements that contribute to your home’s overall comfort and energy consumption – including insulation, heating and cooling systems, and duct systems – the auditor can help you figure out which improvements will give you the most bang for your buck. You might find that $2,000 worth of insulation and air sealing will have the same impact as a $20,000 window upgrade.

If you have enough money left in your remodeling budget, energy-efficient replacement windows can be a terrific option. We’ve seen impressive results from a line of fiberglass windows manufactured by Sunnyvale-based SeriousWindows. Their top-of-the line windows achieve an insulation rating of R-11, which is better than what many people have in their walls and ceilings.

Finally, no matter what home energy improvements you decide to make, be sure to take advantage of the tax credits and other incentives that are available for this kind of work. An experienced energy retrofit contractor will be able to tell which incentives are available in your area, and even help you with the necessary paperwork.

Serious Windows makes this year’s Green Products Awards

by Shana on November 18, 2009
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Recurve partners with SeriousWindows – and in fact is one of the only resellers of SeriousWindows products in the Bay Area (San Francisco, San Jose, Oakland.) For those not familiar with these windows, they have the “R” value of walls … making them … well serious contenders if you are considering replacing your windows as part of an overall energy remodeling project. We were jazzed to learn that SeriousWindows was one of only 16 products to make this year’s Green Product Awards by Building Products magazine. Building Products judges and editors, looking to help their readers sort through green products that were made available this year, judged the award based on products that excelled in three areas: sustainability, value to the contractor, and innovation. Source: SeriousWindows Blog