<

$3,000 Cash for Caulkers – Now Insulation Really is Sexy!!

Posted on: March 9, 2010
No comments yet
Helping Homeowners Invest in Energy-Efficient Homes
Earlier today, after touring Savannah Tech, President Obama announced the initiatives for HOMESTAR, a program that offers incentives for people to make their homes more energy-efficient.

The President explained that the new program will save families several hundred of dollars on utilities, make the economy less dependent on fossil fuels, create work for small businesses and contractors, and bring back construction jobs.

“Here’s one of the best things about energy efficiency – it turns out that energy-efficient windows or insulation, those things are products that are almost exclusively manufactured right here in the United States of America. It’s very hard to ship windows from China. So a lot of these materials are made right here in America.”

Obama in savannah

President Barack Obama stops to greet workers as he tours the Chatham Steel Company in Savannah, Ga., March 2, 2010. (Official White House Photo by Chuck Kennedy)

Through the HOMESTAR Program, homeowners who make investments for energy-efficiency in their homes will be eligible to receive:

  • Direct rebates for energy-saving investments
  • 50 percent rebates for the cost of each upgrade up to $1500
  • Rebates up to $3000 for those who choose to retrofit their whole homes
  • Guaranteed quality installations through quality assurance providers who would conduct field audits after work is completed
  • Support for financing through State and local governments
  • President Obama explained that these short-term investments will lead to long-term savings for homeowners and consumers.

Just like a responsible homeowner will invest in their homes in the near term to fortify their economic security in the long term, we’ve got to do the same as a country. It will have some costs on the front end — you buy a new boiler, or you get some insulation, or you get some new windows, that’s going to have an initial cost, and the same is true from a government perspective. And it’s going to be politically difficult to do some of this, but it’s what’s right to plan for our future.

obama announces homestar
President Barack Obama speaks at Savannah Technical College in Savannah, Ga., March 2, 2010. (Official White House Photo by Chuck Kennedy)

via The White House

Posted by Jesse Lee on March 02, 2010 at 03:24 PM EST
Helping Homeowners Invest in Energy-Efficient Homes
Posted by Jesse Lee on March 02, 2010 at 03:24 PM EST
Earlier today, after touring Savannah Tech, President Obama announced the initiatives for HOMESTAR, a program that offers incentives for people to make their homes more energy-efficient.
The President explained that the new program will save families several hundred of dollars on utilities, make the economy less dependent on fossil fuels, create work for small businesses and contractors, and bring back construction jobs.
Here’s one of the best things about energy efficiency – it turns out that energy-efficient windows or insulation, those things are products that are almost exclusively manufactured right here in the United States of America.  It’s very hard to ship windows from China. So a lot of these materials are made right here in America.
President Barack Obama stops to greet workers as he tours the Chatham Steel Company in Savannah, Ga., March 2, 2010. (Official White House Photo by Chuck Kennedy)
Through the HOMESTAR Program, homeowners who make investments for energy-efficiency in their homes will be eligible to receive:
Direct rebates for energy-saving investments
50 percent rebates for the cost of each upgrade up to $1500
Rebates up to $3000 for those who choose to retrofit their whole homes
Guaranteed quality installations through quality assurance providers who would conduct field audits after work is completed
Support for financing through State and local governments
President Obama explained that these short-term investments will lead to long-term savings for homeowners and consumers.
Just like a responsible homeowner will invest in their homes in the near term to fortify their economic security in the long term, we’ve got to do the same as a country.  It will have some costs on the front end — you buy a new boiler, or you get some insulation, or you get some new windows, that’s going to have an initial cost, and the same is true from a government perspective.  And it’s going to be politically difficult to do some of this, but it’s what’s right to plan for our future.
President Barack Obama speaks at Savannah Technical College in Savannah, Ga., March 2, 2010. (Official White House Photo by Chuck Kennedy)

Obama Says “Insulation is Sexy” – Behind the Scenes Video of the President

Posted on: March 9, 2010
No comments yet

Larry Laseter, president of Efficiency First Capitol Circle member Masco Home Services, joined Barack Obama in Savannah, Ga., on Tuesday as the President delivered a speech outlining details of the proposed HOME STAR efficiency retrofit program. Here is a video released by the White House that shows a brief behind-the-scenes conversation between Larry Laseter and President Obama:

“We’re in the business of doing this now, and just like the GOLD STAR program, we actually guarantee their first year of energy savings” Laseter told the President. “That’s the beauty of this, is we know these technologies are proven, and with this bill, it will jump-start thousands of jobs.”

via Efficiency First

Weatherization Programs Get a Slow Start

Posted on: March 3, 2010
No comments yet

Builder groups in Indiana and Minnesota offer two different models for success for states with lagging efforts.
By: John Caulfield via EcoHome

plastic-window-insulation-354387

After a slow start, the Indiana Builders Association in recent weeks has been “ramping up” its program to weatherize low-income housing and, in the process, create remodeling jobs. Builder-members participating in this effort are now weatherizing about 150 homes per week, and sometime this summer the HBA expects to meet its goal of weatherizing 3,300 units, says CEO Rick Wajda.

Indiana awarded the association $21 million of the $130 million the state received from what the federal government allocated for weatherization from the $787 billion American Recovery and Reinvestment Act of 2009. However, through Feb. 16, Indiana had completed just less than 5%—974 out of 19,736—of the housing units it plans to weatherize under this grant. And that’s nowhere near the worst performance among all states, according to a progress report on the Department of Energy’s (DOE) Weatherization Assistance Program, which went into effect a year ago.

CLICK HERE TO READ MORE

ReStore Your Home on a Budget

Posted on: December 2, 2009
No comments yet

Listen to Matt’s story on The Environment Report syndicated on NPR stations nationwide.

We know that a hardware store sells hardware.  So, what in the world does a ReStore sell? . . . . It sells any kind of RE you can imagine: REducing, REusing, REcycling .

Habitat ReStores are retail outlets which help you restore your house for a fraction of the cost while helping out a great cause.  In addition to

Bathroom made with reused material from reuse centers: mirror, clawfoot tub, sink, marble floor, picture frame, moldings, plumbing parts, cabinets

Bathroom made with reused material from reuse centers: mirror, clawfoot tub, sink, marble floor, picture frame, moldings, plumbing parts, cabinets, antique doors and paint Photo by Dave Lewinski

raising funds for Habitat for Humanity, ReStores help the environment by keeping quality, usable materials out of landfills and putting them back into good use.

Materials sold by Habitat ReStores are usually donated from building supply stores, contractors, demolition crews or from individuals who want to support Habitat for Humanity and keep stuff out of landfills.

When our very own Dr. Anna Marie renovated her home in Florida, she donated all of the old cabinets and appliances to her local Habitat ReStore (watch the video).  When Kelly and I needed reclaimed brick for our patio, salvaged lumber for our moldings, antique doors and a claw foot tub for the new bathroom, an outdoor fireplace, plumbing supplies, and even tools, we found it all (and more) at the ReStore and saved tons of money.

Reuse centers like the ReStore can be found in virtually every community in North America (see below to find a store near you).  They are a green remodeler’s dream come true and a perfect way to reach the goal of zero waste.

You can literally build an entire house from materials from a reuse center.NEW restore logo 2008

You’ll typically save 50% – 90% by skipping the big box stores and finding what you need at a ReStore.  So, use fewer natural resources, keep good stuff out of landfills, help a charity and save a little money . . . You can’t beat that.

Check out The Story of Stuff if you’re not already convinced about reuse.  You’ll definitely want to check out all the cool stuff over at the great new website www.AltUse.com if you’re looking for alternative uses for stuff you’ve got laying around the house but can’t bring yourself to drop by the ReStore.

by Matt Grocoff

Related Links:

Habitat ReStore Directory – United States

Alabama Illinois Missouri Pennsylvania
Alaska Indiana Montana Rhode Island
Arizona Iowa Nebraska South Carolina
Arkansas Kansas Nevada South Dakota
California Kentucky New Hampshire Tennessee
Colorado Louisiana New Jersey Texas
Connecticut Maine New Mexico Utah
Delaware Maryland New York Virginia
Florida Massachusetts North Carolina Washington
Georgia Michigan Ohio West Virginia
Hawaii Minnesota Oklahoma Wisconsin
Idaho Mississippi Oregon Wyoming

Habitat ReStore Directory – Canada

Alberta New Brunswick Ontario Quebec
British Columbia Nova Scotia Prince Edward Island Saskatchewan
Manitoba

American Recovery Through Retrofit!

Posted on: October 22, 2009
1 comment so far

Vice President Biden Unveils Report Focused on Expanding Green Jobs And Energy Savings For Middle Class Families

WASHINGTON, D.C. – Vice President Biden unveiled Recovery Through Retrofit, a report that builds on the foundation laid in the Recovery Act to expand green job opportunities and boost energy savings by making homes more energy efficient.  Joining the Vice President today were Nancy Sutley, Chair of the White House Council on Environmental Quality; Steven Chu, Secretary of Energy; Hilda Solis, Secretary of Labor; Shaun Donovan, Secretary of Housing and Urban Development; and Karen Mills, Administrator of the Small Business Administration.

At a Middle Class Task Force meeting earlier this year, the Vice President asked the White House Council on Environmental Quality (CEQ) to develop a proposal for Federal action to lay the groundwork for a self-sustaining home energy efficiency retrofit industry. In response, CEQ facilitated a broad interagency process with the Office of the Vice President, eleven Departments and Agencies and six White House Offices to develop recommendations for how to use existing authority and funding to accomplish this goal.  These recommendations are described in detail in the Recovery Through Retrofit Report.

“Recovery Through Retrofit is a blueprint that will create good green jobs – jobs that can’t be outsourced, and jobs that will be the cornerstones of a 21st-Century economy,” said Vice President Biden. “And, thanks to the Recovery Act’s unprecedented investments in energy efficiency, we are making it easier for American families to retrofit their homes – helping them save money while reducing carbon emissions and creating a healthier environment for our families.”

“This report builds on the foundation laid in the Recovery Act to expand green job and business opportunities for the middle class while ensuring that the energy efficiency market will thrive for years to come,” said Nancy Sutley, Chair of the White House Council on Environmental Quality. “An aggressive program to retrofit American homes and businesses will create more work, more savings, and better health for middle class Americans.”

Existing techniques and technologies in energy efficiency retrofitting can reduce energy use by up to 40 percent per home and lower total associated greenhouse gas emissions by up to 160 million metric tons annually.  Retrofitting existing homes also has the potential to cut home energy bills by $21 billion annually.  Yet, despite the real energy cost savings and environmental benefits associated with improving home energy efficiency, a series of barriers have prevented a self-sustaining retrofit market from forming.  These barriers include a lack of access to information, financing and skilled workers.

The recommendations and actions in this Report have been carefully designed to help overcome these barriers and to leverage Recovery Act funding to help ensure that the energy efficiency market will thrive long after the Recovery Act money is fully spent.

Some recommendations in the report include:

  • Provide American Homeowners with Straightforward and Reliable Home Energy Retrofit Information: Consumers need consistent, accessible, and trusted information that provides a reliable benchmark of energy efficiency and sound estimates of the costs and benefits of home energy retrofits.
  • Reduce High Upfront Costs, Making Energy Retrofits More Accessible: Access to retrofit financing should be more transparent, more accessible, repayable over a longer time period, and more consumer-friendly.
  • Establish National Workforce Certifications and Training Standards: A uniform set of national standards to qualify energy efficiency and retrofit workers and industry training providers will establish the foundation of consumer confidence that work will be completed correctly and produce the expected energy savings and benefits.  Such standards should incorporate healthy and environmentally friendly housing principles, as outlined in the report titled, the Surgeon General’s Call to Action To Promote Healthy Homes (2009).  Proper certification and training standards will ensure that retrofitted homes are healthy homes.  Consistent high-level national standards will spur the utilization of qualified training providers that offer career-track programs for people of all skill levels, promote and expand green jobs opportunities and facilitate the mobilization of a national home retrofit workforce.

To read the full report and recommendations, please go to http://www.whitehouse.gov/assets/documents/Recovery_Through_Retrofit_Final_Report.pdf

“As Secretary of Labor I’m working to help build the clean energy economy of tomorrow by investing in our workers today,” said Secretary Solis “Training for green jobs can empower workers to climb the career ladder, sustain a family and provide a secure retirement. Through Recovery through Retrofit, we’re committing to meet the needs of workers, employers and homeowners, so we can shape our clean energy future into one that supports working families and is inclusive of the diversity of our nation.”

“I am proud to join my colleagues today in announcing Recovery through Retrofit,” said Secretary Donovan. “It will allow us to work closely together to remove barriers to creating more energy efficient homes for American families.  This initiative will not only lead to cost savings for homeowners and reduce negative environmental impact, but will also be a powerful vehicle for economic recovery by creating quality middle class jobs and lasting neighborhood benefits. This is another demonstration of HUD’s commitment to creating jobs for the new economy in high growth industries by encouraging and investing in “green” building and energy retrofits.”

“This initiative will not only result in considerable cost savings for homeowners on their energy bills, but also put resources in the hands of green sector small businesses who will in turn create good-paying jobs in communities across the country,” said SBA Administrator Mills.

EPA Administrator Lisa Jackson, who was unable to attend this event due to travel added, “This is the Recovery Act at work.  Communities will benefit from good jobs, families will benefit from lower energy bills, and we will all benefit from reduced air pollution and a growing green economy. Our Energy Star program can help families cut up to 30% off their energy bills — saving the average household more than $700 a year through efficiency investments.  EPA is proud to be working with all of our partners to help people save money when they need it the most, and build a new foundation for prosperity through a growing green economy.”

The Department of Energy today also announced $454 million under the American Recovery and Reinvestment Act for energy efficiency efforts nationwide.
The Department is now accepting applications for a new $390 million “Retrofit Ramp-Up” program that will deploy innovative approaches to energy efficiency building retrofits. These Recovery Act funds will help create new partnerships to deliver energy bill savings to entire neighborhoods and towns.  Bringing energy retrofits to whole neighborhoods at a time will simplify the process for homeowners and significantly reduce costs. When applied on a national scale, the program could save billions of dollars annually in utility bills for households and businesses and create thousands of jobs across the country. In addition, the Energy Department announced $64 million in energy efficiency funding for cities, counties, and Indian tribes.

“The Retrofit Ramp-Up initiative is designed to slice through the barriers identified in this report – inconvenience, lack of information, and lack of financing – and to make energy efficiency easy and accessible to all,” said Secretary Chu.  “We want to make our communities more energy efficient, block by block, neighborhood by neighborhood — eventually expanding to entire cities and states.  We can literally bring energy efficiency to the doorsteps of the American people.”

Separately, the Department of Energy will accept state proposals to use State Energy Grant or Energy Efficiency Conservation Block Grant funds for Property Assessed Clean Energy (PACE) pilots.  This is an innovative model which allows communities to provide financing to homeowners to install renewable energy systems and retrofit buildings that can be paid off over time on their property tax bills.  Today, the White House is announcing a “Policy Framework for PACE Financing Programs” developed through an interagency process to ensure that effective homeowner and lender safeguards are included in PACE programs.

To read the framework, please go to http://www.whitehouse.gov/assets/documents/PACE_Principles.pdf

To ensure implementation of the Recovery Through Retrofit Report’s recommendations, CEQ will continue to convene an interagency Energy Retrofit Working Group which will be co-chaired by the Department of Energy, the Environmental Protection Agency, the Department of Housing and Urban Development, the Department of Labor, and the Department of Agriculture.

The group will track the progress of the Report’s recommendations, develop additional strategies to support expansion of the retrofit market, including recommendations for rental housing, and operate as the single point of contact for the implementation of this effort.   Within thirty days, the group will submit an implementation plan to the Vice President.  Moreover, the group will report to the Vice President regularly on its progress toward implementing each of the recommendations identified in the Report.

3 Super Cheap (or Free) Alternatives to Window Replacement

Posted on: October 20, 2009
5 comments so far (is that a lot?)

by Jennifer Eschelbach, EnHouse – GreenovationTV Contributing Writerblackout-honeycomb-shade

When it comes to improving the efficiency of your windows, replacement is helpful but is not always the most cost effective solution.  Replacement windows can cost between $500 per window for cheap (and worthless) vinyl to $1,000 per window for high end (and far more efficient) Pella or Anderson brands.

Several simple remedies can help improve the efficiency and comfort level in your home. Windows were originally designed to look good while letting in the light and the view. But old windows are lousy at keeping your home cozy. Please don’t fret . . . there are easy ways to improve the efficiency of your existing windows.

If you’ve got really old windows with sash weights, watch this video from This Old House to learn how to use a “spring balance” to replace that sash weight and leave room to add insulation in your window cavity.

In the meantime, check out these ridiculously easy and cheap solutions to make your windows a little more friendly this winter.

Solution #1: Window Treatments:  Cost $0 (if you use your existing shades)

Window treatments are one of the cheapest ways to modestly improve efficiency.  Keeping shades open can reduce the need for artificial lighting.  But window dressings can also be used to reduce heat loss in the winter (at night), and heat gain in the summer (during the day).

Common energy-saving window treatments include interior blinds, draperies and shades. Interior blinds, either either horizontal or vertical, are a good choice because the slats can be used to control light and ventilation. However, this option is most effective in the summer months for reducing heat gain.1368736_w_co_t_draught

Draperies are effective during heating and cooling seasons, though their effectiveness is dependent on color and fabric. During the summer months, drapes should remain closed during the day to prevent heat gain. In the winter months, close all of your drapes at night.  During the day, close any drapes that don’t receive any daylight to reduce heat loss. According to the U.S. Department of Energy, closing drapes during cold months can reduce heat loss in a room by up to 10%.

Shades are another valuable tool to combat both heat loss and heat gain. In the summer, lower shades on sunlit windows to reduce heat gain, and in the winter raise shades on the south side of the house during the day and lower them all at night. Dual shades which have one highly reflective side and one absorbing side, are extremely effective, because they can be reversed with the seasons. The reflective side should always face the warmest side, out during the summer and in during the winter. Utilizing window treatments is a good first step toward maximizing the efficiency of your windows.

1368736-rope-w-sq-s

Solution #2: Caulk: Cost $5

Products such as caulk, rope caulk and window insulation kits may also improve efficiency. Use caulk and rope caulk to seal air leaks in and around windows. Caulk is a lasting solution for sealing cracks and gaps that are about one-quarter-inch wide.

For a more flexible remedy, rope caulk can be applied in the winter and easily removed in the summer. Rope caulk can be used to seal airflow in window tracks, seals and any other drafty spots.

You can easily add some insulation to old windows that have sash weights.  Check out this video from This Old House to find out how.

Solution #3: Insulation Kits: Cost $11.99plastic-window-insulation-354387

Finally, you can add a second layer of glazing to the inside of your windows with a plastic window insulation kit. By adding a buffer against drafts and extra sill air space you can cut down on heat loss and boost your home’s ability to hold heat. If installed and removed carefully, window insulation kits can be reused for several years.

Windows add to the character and appeal of a space. Replacing them can be costly and unnecessary. Before deciding to invest in replacement windows, try these tips to improve efficiency. Consider what the payback might be for replacing windows, and make an informed decision.

WHERE TO BUY:

Insulating shades:

Rope Caulk:

Window Insulation Kits:

Jennifer Eschelbach is a GreenovationTV Contributing Writer and in charge of outreach for the The Environmental House Energy & Green Building Resource Center (EnHouse) in Ann Arbor, Michigan.  The EnHouse is a comprehensive resource and touring facility dedicated to furthering the causes of green building, energy efficiency and renewable energy. Jennifer is currently working on her second bachelors degree from Eastern Michigan University in Urban and Regional Planning.  She loves the smell of energy efficiency in the morning.

Harvard Says Start of Remodeling Recovery in 2010

Posted on: October 15, 2009
No comments yet

CAMBRIDGE, MA – October 15, 2009

The declines in owner spending on home improvements will moderate through the end of 2009 and first half of 2010 according to the Leading Indicator of Remodeling Activity (LIRA), released today by the Remodeling Futures Program at the Joint Center for Housing Studies of Harvard University. The indicator suggests the remodeling industry is turning a corner. Annual spending levels should start to rise in the beginning of next year causing year over year declines to shrink to 8.9 percent by the second quarter of 2010.lira_09_3

“Remodeling spending by homeowners shows early signs of stabilization,” says Nicolas P. Retsinas, director of the Joint Center for Housing Studies. “While the housing recovery has been erratic, a strengthening economy could produce spending increases on home improvement projects by the second quarter of next year.”

Some positive signs for the industry are emerging. “Favorable financing costs – for those households with access to credit – and a pickup in homes sales are producing more opportunities for home improvement projects,” says Kermit Baker, director of the Remodeling Futures Program at the Joint Center for Housing Studies. Several factors, however, still impede remodeling growth. “A generally weak housing market with unstable prices, near record levels of foreclosures, and other distressed sales are discouraging households from undertaking nonessential remodeling projects.”

The Leading Indicator of Remodeling Activity (LIRA) is designed to estimate national homeowner spending on improvements for the current quarter and subsequent three quarters. The indicator, measured as an annual rate-of-change of its components, provides a short-term outlook of homeowner remodeling activity and is intended to help identify future turning points in the business cycle of the home improvement industry. The development of the LIRA is detailed in “Developing a Leading Indicator for the Remodeling Industry” (JCHS Research Note N07-1). In July 2008, the LIRA was re-benchmarked due to changes in the underlying reference series. These changes are explained in “Addendum to Research Note N07-1: Re-Benchmarking the Leading Indicator of Remodeling Activity” (JCHS Research Note N08-1). The LIRA is released by the Remodeling Futures Program at the Joint Center for Housing Studies of Harvard University in the third week after each quarter’s closing. The next LIRA release date is January 21, 2010.

The Remodeling Futures Program, initiated by the Joint Center for Housing Studies in 1995, is a comprehensive study of the factors influencing the growth and changing characteristics of housing renovation and repair activity in the United States. The Program seeks to produce a better understanding of the home improvement industry and its relationship to the broader residential construction industry.

The Joint Center for Housing Studies is Harvard University’s center for information and research on housing in the United States. Established in 1959, it is a collaborative unit affiliated with the Graduate School of Design and the Harvard Kennedy School. The Joint Center analyzes the dynamic relationships between housing markets and economic, demographic, and social trends, providing leaders in government, business, and the non-profit sector with the knowledge needed to develop effective policies and strategies. For more information, please visit www.jchs.harvard.edu.

Big Ass Fans to Cool Your House

Posted on: August 9, 2009
5 comments so far (is that a lot?)

whole-house-fan-on-white

Listen to our Greenovation segment on the Environment Report on NPR

Even as the ice cream melts on your countertop and the fire hydrants are whistling for the dogs, there is a way to keep your house cool without using your air conditioner.  Stick a big ass fan in your attic.  A whole-house fan can save you some serious money and still keep you comfortable.

So you’re turning in for the night and the thermostat reads 80 degrees.  But the outside temperature has dropped to 68.  You’re just throwing money away if you turn on the a/c just to cool your house to 72.

Why use a whole house fan?

A whole house fan is a simple and inexpensive method of cooling your house. The fan draws cool outdoor air inside through open windows and exhausts hot indoor air through the attic to the outside.  Running a whole house fan whenever outdoor temperatures are lower than indoor temperatures will cool your house.

whole-house-fan-diagram-boxIn summer, the air inside a home is heated during the hot part of the day. During the morning, late evening, and night, the outside air is often cooler and can be used to replace the inside air.  As daytime temperatures rise, the whole house fan can be turned off.

What are the benefits?

A whole house fan can be used as the sole means of cooling or to reduce the need for air conditioning. If both methods of cooling are present, seasonal use of the whole house fan (during spring and fall) may yield the optimum combination of comfort and cost.

Costs less to buy

  • Purchase cost for a whole house fan = $150 – $650
  • Purchase cost for a window unit a/c = $250 – $800
  • Purchase cost of central a/c = $2,500 – $7,000

Costs less to operate

You lose money every time you turn on the a/c when you can bring in cooler outside temperatures for practically free.

  • Central a/c = $0.15 – $0.43 per hour
  • Window a/c = $0.18 – $0.52 per hour
  • Whole house fan = a penny to a nickel per hour

Drawbacks

A whole house fan does a great job of bringing in cool outside air.  But, it can also bring in humidity, dust and pollen (and of course the smell of your friendly neighborhood skunk – but that’s how you know your fan is working) .  If you suffer from allergies, you can install allergy screens in your windows and still benefit from a whole house fan.

Selecting a whole house fan

  • FAN SPEED. A two-speed fan permits the entire house to be ventilated quickly on high speed (such as when the occupants first arrive at home) and then provides gentle air circulation at the lower, quieter speed. A variable speed unit offers more flexibility in selecting the desired air movement.
  • CONTROL OPTIONS. Control may be a simple on/off pull or wall switch, a multi-speed rotary wall switch, or a timer that automatically shuts off the fan at pre-selected time intervals.
  • LOUVERS. Dampers or louvers typically operate automatically whenever the fan is on. Motorized dampers are available but are not necessary if the louvers are correctly installed and maintained.
  • MOTOR MOUNTS AND NOISE. A direct drive unit has its fan blades attached directly to the motor shaft. This type of unit is usually less expensive to buy and operates at a higher speed than its belt-driven counterpart. A belt-driven unit typically features a motor driving a slowermoving, larger-diameter fan with four or more blades. It may be quieter, but will require maintenance of the pulley and belt.


Sizing a whole house fan

Determining the amount of airflow in cubic feet per minute (cfm) that the whole house fan should provide involves a simple calculation. Multiply the total gross square footage of the house (include upstairs area) by the ceiling height (typically 8 feet). Select a fan that delivers between one-half to one time that amount of cfm at 0.1″ static pressure. For example, a 25′ x 40′ one-story home is 1,000 square feet and would need an 8 x 1,000 x 1/2 = 4,000 cfm fan or better. A two-speed unit that delivers 4,500 cfm at the high setting (240 watts) and 3,200 cfm at low (120 watts) should be adequate.

Whole House Fan Installation – Do It Yourself

whf_hbracketUSE “H” BRACKETS TO PROVIDE PROPER SUPPORT. When installing a whole house fan, be sure to provide proper support and seal the unit into the rough opening in the ceiling. Never cut a truss chord; wooden “H” brackets installed between the trusses create a framed box to raise the fan above the truss system. The louvers must be able to open and close freely and care must be taken to prevent binding or misalignment. A fan with a 34″ base (30″ blade) will work with the dimensions shown in the diagram at left.whole-house-fan-cover

BUILD AN ATTIC-SIDE BOX COVER. A typical whole house fan has a 30″ diameter blade with a sheet metal cowling of 31″ to allow for blade clearance. An attic-side box cover may be constructed from a 4′ x 4′ piece of 1″ rigid fiberglass duct board. The box will be 33″ square with 1″ thick walls (inside dimension of 31″ x 31″). It will be 61/2″ deep. Adjust dimensions to actual fan size.

Note:  For a bit more money, you can find models with motorized automatic insulated doors to provide an air tight seal between the attic and living area when the unit is not in operation. whf-with-insulation

TIPS AND CONCERNS

Seal penetrations and vent attic.  Caulk all penetrations between the attic and living space, such as electrical boxes for ceiling light fixtures, loose attic hatches, large cutouts for plumbing vents, exposed beams, and recessed lights. A whole house fan creates a positive pressure in the attic; it is important that air from the attic is not forced back into the living space through cracks and gaps.

A guideline for sufficient attic vent area is one square foot of net-free vent area per 750 cfm of fan airflow. Continuous ridge and soffit vents are usually more than adequate. Vents with insect screens may have a net-free area equivalent to one-half of the total open area, depending upon the size of the holes in the screen area. Insulation should be installed directly against the fan box frame. Blown-in insulation may require the sides of the fan box to be raised (with baffles) to prevent interference.

AVOID BACKDRAFTS. Care should be taken to avoid backdrafting combustion appliances that are installed in the conditioned space. It is strongly recommended that combustion appliances NOT be installed in such a manner that they use room air for combustion. A whole house fan is capable of pulling large quantities of air from the home and, particularly if not enough windows are open, may easily backdraft a water heater located inside a louvered closet door.

PDF file Whole House Fan (PDF: 236k)

Click here to find where to buy a whole house fan

Article adapted from the Oak Ridge National Laboratory, U.S. Department of Energy, Building Technologies Program. and Southface Energy Institutewhole-house-fan-on-white1

Energy Efficiency: A $1.2 Trillion Boon to the U.S. Economy

Posted on: August 6, 2009
No comments yet

money-house

From McKinsey.com

In this report, McKinsey & Company offers a detailed analysis of the magnitude of the efficiency potential in non-transportation uses of energy, a thorough assessment of the barriers that impede the capture of greater efficiency, and an outline of the practical solutions available to unlock the potential.

The research shows that the U.S. economy has the potential to reduce annual non-transportation energy consumption by roughly 23 percent by 2020, eliminating more than $1.2 trillion in waste – well beyond the $520 billion upfront investment (not including program costs) that would be required. The reduction in energy use would also result in the abatement of 1.1 gigatons of greenhouse gas emissions annually – the equivalent of taking the entire U.S. fleet of passenger vehicles and light trucks off the roads.

Such energy savings will be possible, however, only if the United States can overcome significant sets of barriers. These barriers are widespread and persistent, and will require an integrated set of solutions to overcome them – including information and education, incentives and financing, codes and standards, and deployment resources well beyond current levels.

In addition to the above central conclusion, five observations will be relevant to a national debate about how best to pursue energy efficiency opportunities of the magnitude identified and within the timeframe considered in this report. Specifically, an overarching strategy would need to:

Recognize energy efficiency as an important energy resource that can help meet future energy needs while the nation concurrently develops new no- and low-carbon energy sources
Formulate and launch at both national and regional levels an integrated portfolio of proven, piloted, and emerging approaches to unlock the full potential of energy efficiency
Identify methods to provide the significant upfront funding required by any plan to capture energy efficiency
Forge greater alignment between utilities, regulators, government agencies, manufacturers, and energy consumers
Foster innovation in the development and deployment of next-generation energy efficiency technologies to ensure ongoing productivity gains.

Greenovation Evaluation – Energy Detectives Part II

Posted on: July 15, 2009
1 comment so far

screen-shot-energy-audit-part-2During the Greenovation Evaluation of Dr. Anna Marie’s home, the Greenalysis Team finds virtually zero insulation, an ultra-wasteful toilet, an inefficient oil furnace, a 36 year old water tank, and more wallet busters than you can shake a Benjamin at.

About 58 million homes in the U.S. have no insulation at all.  Yet, it’s one of the easiest ways that you can save energy and lower your monthly bills. The team recommends a new castor oil based spray foam insulation in all of the walls and the attic.

Unbelievably, the original gas water heater from 1973 is still working. Lowering your water heater to 120 degrees can lower your energy use by 5 – 10%. Insulating your tank with an inexpensive tank wrap can help keep the water hot when not in use. Dr. Anna Marie has decided to install a new Rheem solar hot water heater to reduce her carbon footprint even further and ensure a comfortable flow of hot water.

Dr. Anna Marie bought the home with its original oil furnace. After recycling the old tank, she’ll be installing a state-of-the-art geothermal heat pump to heat and cool the home year round for a fraction of the energy of a traditional furnance and a/c. It’s a great choice made even more affordable by the new 30% tax credit from the federal government. The EPA calls geothermal the most efficient home comfort system available.

Anna Marie’s old-old school toilet uses about 5 gallons per flush!! She’s wasting over 8,000 gallons of water per year. She’ll be installng a new high-efficiency toilet with a dual flush sytem – half flush and full flush. The half flush will use only .8 gallons and will be almost impossible to clog. The complete list of recommended improvements for Dr. Anna Marie’s home can be found on her website www.TerraVerdeTV.com and more information can be found on how you can improve your home at www.Greenovation.TV

DOE Delivers $448 Million for Weatherization Programs in 13 States

Posted on: July 15, 2009
No comments yet

homeenergyDOE delivered more than $448 million from the American Recovery and Reinvestment Act to 13 states last week, allowing those states to dramatically expand their weatherization assistance programs. The programs improve the energy efficiency of the homes of low-income families, helping the residents lower their energy bills. DOE awarded the funds to Alabama, Idaho, Maine, Missouri, New Jersey, Oklahoma, Rhode Island, Texas, Vermont, Virginia, Washington, Wisconsin, and Wyoming, and the states may spend up to 20% of the funds to hire and train new workers. The new spending will help the states achieve their collective goal of weatherizing 125,000 homes, creating new green jobs while helping to reduce greenhouse gas emissions.

The new funds represent 40% of the total weatherization funds available to those states under the Recovery Act and follow the award of 10% of the funds in March to support planning and ramp-up activities. The second half of the weatherization funds will be released when the states meet the reporting, oversight, and accountability milestones required by the Recovery Act. Details on the funds awarded each states, as well as the weatherization goals set by each state, can be found in the DOE press release.

See also the Web site for DOE’s Weatherization Assistance Program.