Greenovation: Spray Foam Your Home

  • While there are tax credits for spray insulation, credit is available for the material only, so the contractor should separate out the material and the labor costs.(Photo courtesy of the NREL)

When people talk about making their home energy independent, they often talk about solar panels and wind turbines. But before all of that, a home has to be tight. That’s not as exciting, but necessary. Lester Graham is following Greenovation.tv’s Matt Grocoff as he tries to make his home the oldest net-zero-energy house in America.

Transcript

When people talk about making their home energy independent, they often talk about solar panels and wind turbines. But before all of that, a home has to be tight. That’s not as exciting, but necessary. Lester Graham is following Greenovation.tv’s Matt Grocoff as he tries to make his home the oldest net-zero-energy house in America:

The note on Matt’s door told me to come on in and head for the basement. Matt’s 110 year old home has what’s called around here a “Michigan basement.” Basically, cement floor, stone walls, low ceilings. Not glamorous.

Matt is spraying expanding foam insulation up in that area where the floor framing sits on the foundation. The sill plate… which is basically nothing more than one-and-a-half inches of wood between inside your home… and the great outdoors.

“There’s no insulation between your house, or your living part, and the foundation itself.”

Maybe you’ve been in the basement of an old house and sometimes you can actually see daylight through the sill plate in places. Those leaks need to be sealed. That could be done with caulk. Then the area needs to be insulated. That could be done with fiberglass insulation.

“What we decided to do is to do both at the same time, seal and insulate, is to use a do-it-yourself spray foam insulation kit from Tiger Foam. There’s plenty of professionals out there, and for most people, that’s what I’d recommend you do, go to the professional. If money is an issue or if you’re a really handy person, these spray foam kits are fantastic.”

The foam insulation kit costs about 300-dollars. It’s basically two tanks -each about the size of a propane tank you’d use for an outdoor grill. A hose from each tank is attached to a spray gun that mixes the chemicals. The chemicals mix as they come out and the make a sticky foam that expands into nooks and crannies and then hardens after several minutes.

“Way easier than I thought they were going to be, by the way. I was actually terrified. I went back and read the instructions three – four times. And when I started spraying, it wasn’t that bad.”

“You still ended up with a goof, though.”

“I did have a goof. There was a little bit of foam there, dripping, when I forgot to turn on one of the canisters, but what ya– c’mon Lester.”

Matt’s goof means he’s going to have to wipe up some of the mess and spray again. But it’s not a disaster.

If you’ve got a big job… maybe new construction or a remodel that takes it down to the studs… you might want to consider a professional.

John Cunningham owns Arbor Insulation in Ann Arbor, Michigan. He says, sure, if you’re up to it… do it yourself.

“You could assume that it’d be cheaper to do it yourself and the kits are a really good option, especially for people that have smaller projects or they’re looking to do the work in a very specific time frame or in a distant location for instance.”

But the professionals are recommended for those big jobs. And right now there are federal tax credits for spray foam insulation– 30-percent up to 15-hundred dollars. That credit is limited though.

“The tax credit is available for the material only, so the contractor should be separating out the material and the labor. Also, there are additional incentives from some utilities and more incentives coming down the pike.”

Some states and even municipalities are considering incentives.

One final note… to use the spray foam, Matt Grocoff is decked out in a white haz-mat suit, latex gloves, goggles and a respirator…

“You’ve got to take all the safety precautions. You’ve got to wear your goggles, your suit. And it also can be messy too. Any overspray that gets in your hair will stay in your hair.”

And as he zips up, I get the hint that Matt has to get back to work.

“I do. I’ve got 30 seconds before this nozzle sets up. So, Lester, thanks again.”

“Sounds like my cue to get out of here. That’s Matt Grocoff with Greenovation-dot-TV. I’m Lester Graham with The Environment Report.”

“Thanks Lester.”

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Financing Energy Efficiency

  • More than half the houses in the U.S. were built before 1970. (Photo courtesy of the National Renewable Energy Laborator)

Reducing your carbon footprint
by using less energy can cost
money. Efficient cars, energy
efficient homes, and energy-saving
appliances all take money. That’s
why some states are testing whether
homeowners would be willing
to borrow money to upgrade their
homes and, in turn, save a few
bucks in energy costs. In one
state, the plan is to get private
banks and credit unions to finance
energy efficiency. Peter Payette reports:

Transcript

Reducing your carbon footprint
by using less energy can cost
money. Efficient cars, energy
efficient homes, and energy-saving
appliances all take money. That’s
why some states are testing whether
homeowners would be willing
to borrow money to upgrade their
homes and, in turn, save a few
bucks in energy costs. In one
state, the plan is to get private
banks and credit unions to finance
energy efficiency. Peter Payette reports:

When you hear green building, you might think of a fancy new house with solar panels. But most homes are not new, so reducing the amount of energy communities use means doing something about old houses.

Max Strickland owns a business in Michigan that certifies green homes and buildings. He says more than half the houses in the U.S. were built before 1970.

“We had very little energy code requirements previous to that.”

But upgrades cost money that many homes owners don’t always have. And a lot of people saw whatever equity they had in their house disappear during the past couple of years.

Now, the State of Michigan is trying to help people find the money to make their homes more energy efficient. The program is called Michigan Saves. The state launched the pilot project in a rural area of the state. The pilot is a collaboration of a local credit union, an electric cooperative and a building supply company.
Borrowers will have their new payment tacked onto their monthly utility bill.

Trevor Williams is with Brown Lumber, the building supply company involved in the pilot. Williams says it’s likely most of the improvements will be in heating costs. He says to begin with, home owners will be encouraged to have an energy audit.

“The audit it would say things that need to be done, the top three things that are recommended. Furnace replacement, ceiling ducts and weatherizing the house those going to be the three most common items.”

But homeowners can also borrow money for new energy efficient appliances like refrigerators and hot water heaters. Sometimes loans like this are promoted as immediately paying for themselves. That is, it’s suggested the money you save on your utility bills will fully cover your new payment. That’s not necessarily the case.

Marc McKeller is with Members Credit Union which is financing the project. He says after a few years, people will be able to break even on the costs. Government tax incentives and other rebates will help that happen. But McKellar says people shouldn’t expect to take out a loan, retrofit their house and not have more to pay each month.

“The only way it could be was if a government was to give zero percent loans out and that they received tremendous rebates from the utilities and that they received a tremendous government credit.”


But, McKellar says it’s still a good deal. The interest rate for project’s loans will be a little bit better because the state is backing the loans.

And tight credit means not many banks are loaning people money to make their house energy efficient and not many people are putting money into a home that’s lost value because of the housing market bust. That’s one of the reasons they need to run a pilot project.

“They’re trying to determine through this study, how do you get a consumer to actually do this and what are the benefits?”

The directors of Michigan Saves hope to roll out a statewide program later this year. So far no banks have agreed to participate but there are other credit unions interested in the concept.

For The Environment Report, I’m Peter Payette.

Related Links

Biofuels in Europe: Part 3

  • Jühnde’s biomass power plant runs 24/7 and gets fed manure and grains every day. (Photo by Sadie Babits)

People fed up with hearing
about an energy crisis talk
about going off the grid.
In the US, the solution is
to install solar panels on
your roof or put up a wind
turbine. But a village in
Germany has taken a different
approach. In the final part
of our three-part series on
biofuels in Europe, Sadie
Babits explains:

Transcript

People fed up with hearing
about an energy crisis talk
about going off the grid.
In the US, the solution is
to install solar panels on
your roof or put up a wind
turbine. But a village in
Germany has taken a different
approach. In the final part
of our three-part series on
biofuels in Europe, Sadie
Babits explains:

The village of Juhnde sits between rolling farmland and woods. The first buildings went up more than a thousand years ago. It looks like a lot of German villages – narrow streets, terra cotta roofs, and a towering church steeple. But talk to anyone here and they’ll tell you Juhnde is no ordinary town. It’s the first community in Germany to be powered and heated by cow manure and grain.

“This is the biogas power station on this side.“

That’s Gerd Paffenholz. He’s lived here in Juhnde for 20 years. He volunteers to show visitors, like me, the village’s bio-energy plant.

“This is the wood heating system and what you don’t see is the network that deliver the hot water in the ground.”

Paffenholz stands on top of an underground storage tank. The liquid manure in here gets pumped over to a massive green tank. That’s the anerobic digester. There, micro-organisms have a hay day eating manure and grains supplied by farmers in Juhnde. The bacteria create biogas, which then gets combusted into heat and electricity. It’s pretty silent outside the power station but open the door…

(engine sound)

That’s the sound of 700 kilowatts of power being generated. The electricity gets sent to the public network. It provides this village of 750 people with renewable power. There’s an added bonus – energy that’s normally lost while making biogas gets captured and is used to heat water. That hot water gets delivered through a series of underground pipes to heat most of the homes in Juhnde.

The village’s bioenergy plant went live five years ago. The price tag? Nearly 8 million dollars. The money came through a government grant and from residents who each ponied up thousands of dollars to join the plant cooperative. The village has also cut its greenhouse gas emissions in half already meeting targets set by the European Union for 2050.

“It shows you what some wise investments and collective thinking can make happen.”

That’s Jim McMillan. He researches biofuels at the National Renewable Energy Laboratory in Boulder, Colorado. He says Juhnde has created an attractive model that could work in the Northern US and Canada where people are more remote and winters are long and hard.

“It’s a good model but Europe, I mean, they’re built out much more than we are and they are doing a lot more in building. They’re density of building, the size of their square foot of their homes are much more right size and so these solutions are easier to implement there than they are here I mean we have a lot more big homes that require a lot more heat.”

Our attitudes are different too. It took several years to get Juhnde’s residents to buy into the idea of going off the grid but now most everyone is on board. Here in the U.S. we’re a lot more individualistic. But McMillan still sees a lot of promise in what Juhnde accomplished.

“So one village is a good example but we need to apply it across the board.”


Other villages in Germany are building bio energy plants. In the U.S. a few towns are attempting parts of Juhnde’s efforts. Reynolds, Indiana replaced the town’s vehicle fleet with cars and trucks that run on bio fuel. It’s now working with a company to turn algae into power. And in Grand Marais, Minnesota, they want to build a central heating system for the town that burns wood chips from the local saw mill.

For The Environment Report, I’m Sadie Babits.

Related Links

Geothermal Is Growing

  • This map shows the distribution of geothermal resources across the United States. (Photo courtesy of the US Department of Energy)

Geothermal power plants turn
heat from under the Earth into
electricity. It’s a way of
making power with practically
no pollution. And, according
to a new report, there are more
companies investing in this kind
of energy. Mark Brush has more:

Transcript

Geothermal power plants turn
heat from under the Earth into
electricity. It’s a way of
making power with practically
no pollution. And, according
to a new report, there are more
companies investing in this kind
of energy. Mark Brush has more:

The report was put out by the Geothermal Energy Association. They found the number of geothermal power plant projects being developed jumped by 46% compared to 2008.

They say the jump was driven by federal stimulus money. And some state laws that mandate that utilities provide a certain percentage of renewable power.

Karl Gawell is with the Geothermal Energy Association. He says, right now, there are specific places where these power plants work best.

“Well, the best reservoirs right now tend to be in the western United States. And in areas where the heat of the Earth actually comes closer to the surface of the Earth. But, you know, the potential is nationwide.”

Gawell says we don’t have good technology to find new heat reserves under the Earth. And, until we invest in better exploration technology, we won’t know where to find these hot spots.

For The Environment Report, I’m Mark Brush.

Related Links

Shutting Off the Heat

  • Four million homes had their heat or power turned off this year. (Photo by Elizabeth A. Sellers, courtesy of the National Biological Information Infrastructure)

Millions of families had their heat
or electricity shut off this year.
Rebecca Williams reports that happened
even though government assistance
for energy bills doubled:

Transcript

Millions of families had their heat
or electricity shut off this year.
Rebecca Williams reports that happened
even though government assistance
for energy bills doubled:

Record numbers of Americans are having trouble paying their heating or power bills.

Mark Wolfe is with the National Energy Assistance Directors’ Association. He represents the state agencies that help people pay their energy bills.

He says when families use up their allotment of energy assistance, things can get tough.

“It’s pretty awful – they go to payday lenders, pay high interest rates to get extra money, they borrow from relatives, they cut back on medicine, they turn the heat down to dangerous levels. These are families that’ve already gone from steak to chicken to rice. They don’t have a lot of choices.”

Four million homes had their heat or power turned off this year.


Wolfe says unless the economy improves next year, the number of families needing help with their bills could be even greater.

For The Environment Report, I’m Rebecca Williams.

Related Links

Heat Island Science

  • A city like Las Vegas is actually cooler than the desert, because of all the lawns and trees inside the city. And a city like Chicago is hotter than the tree-lined suburbs surrounding it. (Photo courtesy of NASA)

Not all heat island effects are
the same. But, Rebecca Williams
reports, NASA scientists have
found there’s one thing all cities
can do to cool things down:

Transcript

Not all heat island effects are
the same. But, Rebecca Williams
reports, NASA scientists have
found there’s one thing all cities
can do to cool things down:

The NASA scientists found the heat island effect is much less intense in hot, dry parts of the country.

A city like Las Vegas is actually cooler than the desert, because of all the lawns and trees inside the city. And a city like Chicago is hotter than the tree-lined suburbs surrounding it.

It’s all about trees. Shady trees cool things down.

Lahouari Bounoua is one of the researchers.

“One of the most simple and natural ways of mitigating the excess heat is to plant trees within the cities.”

He says the key is to make sure the trees you plant are well adapted to the region, so you don’t end up wasting water. He says that’ll be even more important as the climate continues to change.

For The Environment Report, I’m Rebecca Williams.

Related Links

Interview: Doctors Call for Cleaner Coal

  • Dr. Alan Lockwood is a Professor of Neurology and Nuclear Medicine, University at Buffalo, Buffalo, NY (Photo courtesy of the Physicians for Social Responsibility)

A group of doctors, Physicians for
Social Responsibility, has issued a
new report called “Coal’s Assault On
Human Health.” It explains the
health impacts of burning coal, but
it goes beyond that. Lester Graham
caught up with the principle author
of the report – Dr. Alan Lockwood.
Lockwood is a professor of neurology
and nuclear medicine at the University
of Buffalo. He says their report also
looked at the possible health effects
of climate change:

Transcript

A group of doctors, Physicians for
Social Responsibility, has issued a
new report called “Coal’s Assault On
Human Health.” It explains the
health impacts of burning coal, but
it goes beyond that. Lester Graham
caught up with the principle author
of the report – Dr. Alan Lockwood.
Lockwood is a professor of neurology
and nuclear medicine at the University
of Buffalo. He says their report also
looked at the possible health effects
of climate change:

Dr. Alan Lockwood: Well, first of all, it would change the temperature. So, more people would have heat-related illnesses. Insect vectors that carry malaria and dengue will increase their distribution. The possibility of reduced crop yields and, secondarily, is starvation. And then, of course, there’ll be the increase in sea level, which will inundate many countries that have low-lying areas – such as Bangladesh and some other countries in the Pacific – will be totally under water. So, all of those things add up to making this an important element of the coal story.

Lester Graham: It’s often noted that the public health costs of power from burning coal is never really calculated into the overall cost of the energy – this report tackles that. And you use that to justify some of the recommendations – including no new coal-burning power plants, cutting other pollutants from existing plants. Realistically, do you think anyone is really going to go for that?

Dr. Lockwood: Well, unless you set the bar at the appropriate level, you’re never going to achieve the outcome that would be optimum. So, our position is that this is the target we’d like to see, and then we will work with people and do our educational mission in order to get as close to that target as is possible.

Graham: How do you expect this will affect the debate over the climate change bill in the Senate?

Dr. Lockwood: Physicians, according to polling information, have very high credibility. So we are a different voice that brings this argument to the floor. And, hopefully we’ll be a component of the legislative process and the input of information that comes to legislators as they grapple with tough decisions.

Graham: You’re talking about further reducing some of the pollutants caused by coal. But the EPA, in all of the government’s wisdom, has decided, ‘well, we are at a level where these exposures are safe to the public.’ Why do you dispute that?

Dr. Lockwood: No one has been able to demonstrate a level below which these pollutants are really completely safe. So, the general consensus is, that the lower they are, the less likely they are to effect health in an adverse manner – producing things like attacks of asthma, myocardial infarcts, strokes, things of that nature.

Graham: There’s a huge campaign going on right now by the coal industry touting the benefits of clean coal. I wonder if you think there is the possibility of clean coal, now or in the future, or if we have to find alternatives to coal altogether.

Dr. Lockwood: Well, we advocate alternatives to coal. The coal industry, first of all, is extremely well-financed. They’re working very hard to convince people that it’s possible to use coal in a manner that’s clean and doesn’t pollute the environment. But that’s a concept that’s more in the future – if it ever proves to be practical.

Graham: Sounds like you’re a clean coal skeptic.

Dr. Lockwood: I’m from Missouri.

Graham: The Show Me State!

Dr. Lockwood: Well, I’m a clinical neurologist and I’m a scientist. So I want to see proof and data rather than ‘pie in the sky’ claims.

Graham: Dr. Alan Lockwood is the principal author of the just released report ‘Coal’s Assault On Human Health’ from the Physicians For Social Responsibility. Thanks very much for talking time to talk with us.

Dr. Lockwood: Thank you for having me.

Related Links

Stimulus Funds for Home Weatherization

  • A fan is sized to the front door so they can de-pressurize the house. This helps them see where air is escaping - and where insulation may be needed. (Photo by Julie Grant)

The government stimulus package
included billions of new dollars
for home weatherization programs.
The money is used to help low income
folks make their homes more energy
efficient. But some critics say
it’s not a good use of federal tax
dollars. Julie Grant reports:

Transcript

The government stimulus package included billions of new dollars for home weatherization programs. The money is used to help low income folks make their homes more energy efficient. But some critics say it’s not a good use of federal tax dollars. Julie Grant reports:

Chris Graham spends his days checking the energy efficiency of people’s homes.

Today he’s at Sandra Richards’ in Mogodore, Ohio.

Graham: “Hi Sandra.”

Sandra: “How are ya?”

Graham: “Wonderful. And you?”

Sandra: “Better.”

Graham: “Better?”

Sandra is 55. Her house is clean and neat. She was a nurse for many years, but today she’s sitting on the couch, watching TV. A broken foot spiraled into problems with her knee and hip – and other health problems.

“I mean I’ve just had so many things go on in such a little time. I was working 12 hour days, and one month later, I couldn’t work at all.”

Sandra qualified for the home weatherization program because she doesn’t have much in the way of income anymore.

Chris Graham says he’s been to a lot of homes where people are far worse off. They can’t get around, they don’t have money coming in, and their houses get cold in the winter.

Graham heads to the basement.

“The first thing we have to make sure is that the heating unit is not in terrible, dilapidated shape. And that it does not have more than a specified amount of carbon monoxide in the flu gasses.”

He turns on the furnace and sticks a probe into the flu pipe.

(sound of a tester)

Grant: “Looks like a receipt came out.”

Graham: “It kind of is. It tells you exactly what was going on there.”

Looks like Sandra’s furnace is running pretty well. 81% efficiency.

But Graham sees evidence of carbon monoxide on her old water heater.

“It’s 17 years old and it just plain needs changed. It’s got burnt, scorch all over it. So we’re gonna do that.”

That could cost more than $1,000.

But the home weatherization program can afford it these days. The stimulus packaged included $5-billion for this kind of work – compared with less than a quarter of a billion dollars last year. The new money has to be spent within two years.

And some people think that’s just too much money – too fast. Leslie Paige is with a taxpayer watchdog group called Citizens Against Government Waste.

“There’s always a lot of waste in government spending anyway, but when you spend it quickly and there’s very little oversight, that’s almost a prescription for seeing a lot of that money go for waste and fraud and losing to abuse.”

That kind of criticism is shocking to David Shea. He’s director the Community Action Council of Portage County, Ohio – the organization that hires inspector Chris Graham.
The weatherization program has been around since 1976 and Shea says they have to report their spending in about a hundred different ways.

“It’s not like money is being thrown out at agencies and just say, ‘oh go out and do it.’ There are volumes and volumes of written regulations that have been around for a long time. We do so much sophisticated reporting; they know how every dollar is being spent. Always. Always.”

Shea’s office used to have one crew out weatherizing homes around the county. Since the stimulus money’s come in, he’s hired a second crew. But there are so many people wanting their services, the waiting list is still years long.

(sound of a fan)

Back at Sandra Richards’ house, inspector Chris Graham has sized a big fan into the front door. He’s depressurizing the house – so he can see where air is escaping. Graham says she’s going to need some doors sealed and new insulation in the attic.

He says Sandra will feel more comfortable, so she won’t need to turn up the heat in the winter. That means she’ll save on energy costs, and will use less fossil fuels.

That’s the whole idea of this project – to use less energy in the future, and to help millions of families that couldn’t afford to improve things on their own.

For The Environment Report, I’m Julie Grant.

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Stimulus Dollars for Your House

  • A 1.4 ton geothermal heat pump unit at an elementary school. Stimulus credits did boost sales of geothermal systems – the most efficient systems out there. (Photo courtesy of the National Renewable Energy Laboratory)

The Cash for Clunkers program is
not the only government incentive
for energy efficiency. The stimulus
package has incentives to make homes
more energy efficient. Mark Brush
took a look into the bigger part of
the tax credits – new home heating
and cooling systems:

Transcript

The Cash for Clunkers program is
not the only government incentive
for energy efficiency. The stimulus
package has incentives to make homes
more energy efficient. Mark Brush
took a look into the bigger part of
the tax credits – new home heating
and cooling systems:

Homeowners can get 30% of the cost of a new heating or cooling system refunded on their taxes. For most systems the government caps the refund at $1,500.

Trade groups say the credits didn’t do much for air conditioning sales this summer. They say the types of air conditioning systems eligible for the credit are just too expensive.

But energy efficient furnaces cost a lot less – so trade groups do expect the tax credits to boost furnace sales.

Francis Dietz is with the Air Conditioning, Heating, and Refrigeration Institute. He says the credits did boost sales of geothermal systems – the most efficient systems out there.

“That was a bright spot. That is a 30% uncapped tax credit. So basically a homeowner who has a geothermal heat pump installed can get back, as a credit, 30% of the cost of that.”

That’s a big help – because geothermal systems can cost between $15,000 to $28,000 to install.


For The Environment Report, I’m Mark Brush.

Related Links

Greenovation: Whole House Fan

  • Matthew Grocoff says a whole house fan gives the same comfort as you would have with an air conditioning system. (Photo courtesy of Greenovation TV)

Energy efficiency is on the mind
of a lot of homeowners. They’re
starting to question everything
about their homes, even the need
for air conditioning. Lester
Graham met with some homeowners
and an energy-efficiency expert
to talk about a different approach
to cooling a house:

Transcript

Energy efficiency is on the mind
of a lot of homeowners. They’re
starting to question everything
about their homes, even the need
for air conditioning. Lester
Graham met with some homeowners
and an energy-efficiency expert
to talk about a different approach
to cooling a house:

For some people, air-conditioning just feels a little unnatural. I mean, it’s a refrigerated room, right?

There are older ways of cooling a house that are cheaper and use a lot less electricity.

Matthew Grocoff is with Greenovation TV. His website suggests all kinds of ways to make homes more green.

We met at a house in a tree-lined neighborhood of century-old homes in Ann Arbor, Michigan.

(sounds of house and stairs)

He wanted to show me an idea that’s like throwing open the windows and pulling in a cool summer breeze.

It’s called a whole house fan.

Grocoff: “We’re at the home of Jacinta Beehner and Thore Bergman. Thore actually installed this fan himself. It cost about $250 – about $9500 less than the quote that they got to install an air conditioning system in their house. And, this summer, they have not had to turn on their window units at all.”

Now Thore is not a carpenter. He’s a university researcher who studies monkey vocalizations. But, he decided he’d try to install the big fan in his ceiling on his own.

Bergman: “It was fairly easy. It took a couple hours. The tricky thing was – we have an older house that had layers of plaster and wood in the ceiling. So, cutting through that to make the hole took a little more work that it might in some houses. But it wasn’t too bad.”

Beehner: “I have to admit, I didn’t really believe that maybe he could install it himself. And yet, he did a great job. And I am the biggest fan of the whole house fan.”

Grocoff: “So, you’ve got the Beehner-Bergman fan club here. And this is interesting, because the goal, for most homeowners, is to get the house to a comfortable 72 degree temperature. And, it’s kind of strange that when it’s 65 degrees outside, and it’s 80 degrees inside your house, that we’re turning on an air conditioning unit when the air outside is actually colder than the air conditioning unit.”

(sound of fan turning on)

Bergman: “One drawback is the noise. Which, we’ve gotten used to. We kind of like it for sleeping – it blocks some of the street noise. We’re standing right underneath it, and it’s kind of hard to talk.”

Beehner: “But, we also have a baby. So the whole house fan serves as white noise, which really helps us move around upstairs while he’s asleep.”

Grocoff: “Those people who are not looking for that white noise sound, like Jacinta and Thore are for their baby, they’re going to be able to get something that’s quieter, more efficient, more insulated, that’s going to be virtually silent, at the higher price points.”

There have been some surprises along the way.

Jacinta says, you have to keep in mind – anything in the night air will be drawn into the house.

Beehner: “One night, we actually did turn it on, and within about one minute, our entire house was filled with the smell of skunk.

Grocoff: “So, if you’ve got really good, deep skunk smell, you know the fan is working. Another possible drawback is, with the air, you’re bringing in any kind of dust, pollen, anything else like that.”

But, Grocoff says, overall, this big sorta-box fan in the ceiling really pulls the hot air out of the house and pulls the cool air from outdoors into the house.

Now, these fans don’t work everywhere.

If you live in an extremely humid area, or a region where it never really cools down at night or in the morning, it might not be a good fit.

But for areas that enjoy cooler mornings and evenings in the summer, Grocoff says this is a good alternative.

Grocoff: “With a whole house attic fan, you’re going to get the same comfort as you would with an air conditioning system. But, on a dollar-for-dollar basis, the cost for running an air conditioning system is 20 cents to 30 cents every hour that you have that turned on. For a whole house attic fan, you’re talking about a penny to a nickel an hour.”

There are all kinds of designs besides the big box fan types.

You can go to a home improvement store, your heating and cooling installer, or do some research online at greenovation.TV or just type in whole house fan in Google. You’ll find plenty of places wanting to sell you there version of a newly popular old idea.

For The Environment Report, I’m Lester Graham.

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