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Vapor diffusion gets a lot of air time, but it plays second fiddle to air leakage.
Researchers monitor temperature and moisture in a house for three winters to see whether 12 inches of dense-blown cellulose would work as well as the same thickness of medium-density open-cell spray foam.
Much less expensive to install than an oil-fired hot-water heating system, minisplits are extremely efficient too
Cooking causes indoor air pollution. The obvious answer is to install, and use, a range hood and fan, but how well do they really work?
Installing an electric tankless water heater proves to be cost-effective and energy efficient.
Chasing energy rebates takes the focus off solving problems and puts it on getting as much rebate with as little out of pocket as possible, resulting in small jobs and mediocre performance improvement.
Tracking temperature, humidity, set point, and equipment runtime can uncover the causes behind client complaints.
In addition to the training, here are the tools you'll need to design a Passive House.
A thorough, step-by-step analysis that treats the home as an integrated system is the only route to true performance improvements, including lower energy bills and better indoor air quality.
The truth is that commonly espoused energy-saving tips are worthless. We look at four common offenders.
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