HEET Barnraisings—a green twist on an old idea


You may remember the scene from the 1985 movie Witness starring Harrison Ford. A group of Amish people converge on a neighbor’s property and assemble a barn in a single montage, a single day. A Cambridge-based co-op  HEET (for Home Energy Efficiency Team) does weatherization work that’s less lofty, but arguably more important to the modern world. It’s a model for what can be done by harnessing the power of progressive community which emerged during the Obama campaign.

As Bob the Builder might say, ‘Can We Caulk it? Yes we can!’

Combining the materials purchased by the homeowner with free knowhow and labor from HEET, the team has weatherized several low-income  homes in Cambridge, with the goal of performing a barn-raising per month. As they do so, they transfer the skills needed to make—and keep— a home more energy efficient to both homeowners and groups of new volunteers. The energy savings persist, putting cash in the pockets of Cambridge residents, which can be spent in the local economy in different ways—a Cambridge mini-stimulus.

HEET grew out of neighborhood organization called GreenPort. The purpose of both groups, according to co-founder Steve Morr-Wineman, is to bring neighbors together to respond to the environmental crisis. A recent project included weatherizing the Cambridgeport Public School, a pioneering public-private-volunteer collaboration with the savings going back to Cambridge’s tax-payers.

Daily KOS thinks the model needs to go national, and so does Warm Home Cool Planet.

Somerville, MA will soon hold their first weatherization barnraising and Watertown, Brookline, Lexington, Medford, Milton, Newton, Beverly, and Boston are thinking about starting their own groups.  I think it would be a good idea for this idea to go nation-wide.  In fact, a weatherization barnraising on the White House might be a very good way to kick-start that process.

Our hats off to the HEET team. You’re doing great work. Expect to hear from us soon.

Boston Globe reporter gets audited

No, our local paper is not in trouble with the taxman (that’s just President Obama’s cabinet picks) but Geoff Edgers from the Boston Globe decided that his heating bills were getting out of control. So he called up his energy provider-National Grid-who sent over a Conservation Services Group auditor to perform a thorough check up on his 100 year old home. Among the pleasant suprises-free CFL light globes to replace his incandescant bulbs. Watch the video below to see what else Geoff learned while making his home more energy efficient. If you’re a Cambridge resident, you can sign up now for your own FREE home energy audit.

Crawlspace 101

This weekend, Warm Home Cool Planet received a message from Lands’ End specifically targeting everyone shivering their way through winter here in Massachusetts.

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You know it’s cold when folks from Wisconsin are sending you winter sympathy messages via email. Beyond how cold it might be outside, the recent patch of artic weather here in Cambridge has resulted in lots of time spent inside for most residents. For Warm Home Cool Planet, that also means plenty of time to ponder why the ground floor of the house is always colder than the floors above.

A quick search around the Internet revealed a wealth of information on how most houses–particularly those built before the 1970s–don’t have properly insulated crawlspaces.

So if your bottom floor feels like a skating rink, find out why crawl space vapor is reducing your comfort–and increasing your heating bills. We also recommend looking at your all your options for properly sealing and insulating your crawlspace. Depending on the situation under your house, you need to check your polyethylene sheet has the right thickness, and you have the right kind of membrane to deal with moisture build up under your flooring.

Keeping Warm in the Winter: Warm Home Cool Planet Survey of Surveys

If one does a Google search on ‘keeping warm in the winter,’ you’ll find dozens of articles from all over the world, with tips and advice on how to keep warm without breaking the bank. There’s a lot of overlap in these lists, but occasionally you find a unique idea or two. Many of these lists are aimed at the elderly, who have to balance warmth issues with other issues (avoiding slips and falls). You’ll also find a great deal of disagreement about the safety and utility of closing off vents in unused parts of a structure heated by a forced air furnace.

The tips are all common-sensical. But one thing we’ve noticed at Warm Home Cool Planet, if you pile up enough common sense, you frequently find you’ve created an uncommonly useful resource. We read through dozens of postings with the reality of Cambridge winter in mind.

Our Survey of Surveys found the following categories of suggestions:

  • Eliminate drafts—It’s not just about saving money and the planet, it’s about comfort. One thing we hadn’t seen before were these insulated window blinds with magnetic seals at the edges, which come from, no surprise, Montana.
  • Set up a warm room safely—(without causing furnace problems; this means being careful about how many heating vents, if any, you shut. One rule of thumb is to never shut vents that supply more than 15% of your homes total cubic heating volume, and if you are using a heat pump, don’t shut off vents ever, period.)
  • Dress in air-trapping thin layers—much discussion of thermal underwear; downhill skiers seem to know a lot about this.
  • Exercise moderately and appropriately for your age and physical condition.
  • Eat and drink enough; eat and drink warm things.
  • Only use space heaters safely and responsibly. If you die, you will soon grow cold and the space heater will be a waste of money.

A friendly reminder from Forbes Magazine

You know when they are publishing energy saving tips for the financial bigwigs who read Forbes, things are getting serious. we encourage you to read the whole list, but number 3 struck us as particularly noteworthy:

3. Switch off phantom power. Plug any electronic equipment and appliances with clocks or timers into power strips you can conveniently turn off. As much as 75 percent of electricity used by home electronics is consumed when devices are (supposedly) turned off. Look for the Energy Star logo and choose the most efficient model you can when buying new appliances.

Energy Rebates by the Square Foot

The details of an interesting program to encourage energy efficiency in Utah just crossed our desk here at Warm Home Cool Planet.

The Energy Services Efficiency Program… eases the financial burden of making large changes that lower the energy load on the power grid, such as better insulation, more efficient air conditioning systems and improved swimming pool pumps.The rebates could pay more than $500 for improved attic insulation, $350 for a new air conditioning unit and up to $125 for a better swimming pool pump.

Warm Home Cool Planet supports this idea because it achieves two things. It ties the reduction of energy use in each house to specific improvements, and it helps the homeowner make the capital investment in what are becoming tough times for all. Looking at the photo below, it seem like the folks in Utah are getting with the program too:

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Larry Morrison, also with Morrison Insulation, said when he learned about such rebates last year, he started alerting all of his customers to the possible benefits. He said it costs about 50 cents per square foot for a typical installation, while rebate programs would reimburse for 35 cents per square foot – as both the St. George and Questar programs do.

Retrofitting Halogen Track Lighting with LEDs? Someday soon, we hope.

With energy savings of up to 80% over Halogen, retrofitting your MR16 track lighting with LEDs would seem to be a no-brainer. The problem is, well, it’s complicated. The prices on this type of lighting are falling fast, and the bottom line is; making a big investment now might not make sense.

LED tracklight

According to Wikipedia, there are few standards for MR16 and MR11 compatible LED lamps, and with a large variety of designs varying significantly in beam control, light quality, efficiency and luminous power, getting the right light for your model of track lighting may be difficult. Or impossible. Most LEDs run on DC current; halogens most often run on 12 volt AC current. So your bulb will need to have an integrated rectifier.

If this is all greek to you, it’s probably not the greatest idea to tackle this solo.

Think twice before placing a huge wholesale order from the Pacific Rim. With reputable sources selling dimmable LED halogen replacements for 30-70 dollars a bulb, you have to wonder about the longevity of a 10 or 15 dollar generic knock-off.

In the pioneering spirit of Warm Home Cool Planet, we appointed ourselves guinea pig and ordered fifty bucks worth of the, ah… affordable bulbs to test in one of our living rooms. We’ll keep you posted on the results.

We’re looking forward to these bulbs hitting the mainstream residential market in the next few years. Stay tuned to this channel.

Is your home R-Rated?

The accepted wisdom is at least 50% of the energy used in our homes is for heating and cooling. That is particularly true for residents in the North-East Corridor and the Midwest, who routinely shiver through winter and swelter throughout the summer months.

The Department of Energy says every house has an R-value, which is your home’s built-in effectiveness at retaining the heat generated within your home. They have even provided a calculator that recommends various  insulation improvements to reduce the effect of climatic changes outside your four walls.

Warm Home Cool Planet input their data and found the results…  a little confusing. Try it yourself though.

To find out more about R-values, you’ll find this explanation enlightening. Particularly the part  explaining why simply putting more insulation in your walls won’t cut your energy bills by 50%.

For those Warm Home Cool Planet readers who passed high-school physics, this Wikipedia stub on thermal resistance makes useful reading before starting an energy-efficient renovation.