July 19, 2020

Are Solar Roofs Ready To Go Mainstream?

On new and retrofitted roofs, you can now use aesthetically pleasing solar shingles to keep the weather out and generate renewable energy. They’re more cost-effective than you may think. We compare costs with other roof options and review pros and cons to help you decide if they are right for you.

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June 12, 2020

Does Your Insulation Have Low Embodied Carbon?

Zero energy homes need thick layers of insulation, but some materials have serious climate impacts. Identify the key factors that affect the carbon footprint of insulation materials and some good choices for future projects.

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June 8, 2020

The Smog in Your Kitchen – What the Experts Say

Experts Say Cooking with gas is hazardous to health, according to research that spans the last several decades. A recent study puts the issue in stark terms. Air inside homes can be more unhealthy than outdoor pollution even during a wild fire that fills the air with smoke.

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June 8, 2020

The Many Benefits of All-Electric Design

Decades of advertising tell us that gas is cheap. Even without factoring in the cost of climate change, natural gas is no longer the least expensive choice for residential use. It’s a new era of cost-effective, low carbon, all-electric homes.

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April 13, 2020

Heat Pump Magic

Heat pumps make homes comfortable, heat water, and even dry clothes. And they do it far more efficiently than other methods. It’s not magic, it’s science!

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April 13, 2020

Carbon Emissions: We Broke It, We Fix It!

There’s no time to lose. We must move rapidly and decisively toward a carbon-neutral economy. Direct action is essential, but cannot happen fast enough. After you have reduced carbon in your home, vehicles, and businesses, there is still more to do. Here’s how.

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March 18, 2020

The Mystery of Misapplied Mini-Splits

If you’ve ever heard that a mini-split heat pump wasn’t fulfilling its potential there is no mystery — the problem was almost certainly errors in design or installation. Here’s everything that needs to happen for a proper installation and reliable performance.

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March 18, 2020

Production Builders, It’s Time to Sell Zero Energy Homes 

Zero energy homes are poised to go mainstream. Large builders have the scale necessary to launch the market into this new territory. Homebuyers save and builders profit.

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March 14, 2020

Make Hot Water the Modern Energy Efficient Way

Heat pump water heaters have been available for several years and are gradually gaining acceptance in new construction as well as in the replacement market. Here is guidance for the best application of this technology with an emphasis on colder climates.

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February 15, 2020

Wall Upgrades for Deep Energy Retrofits

Upgrading the energy performance of walls in an existing home is the most challenging aspect of a deep energy retrofit. One of these eight options will work for just about any zero energy renovation.

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February 15, 2020

We Have Met the Enemy and It Is Waste

Energy waste is rampant in the American economy. If waste were cut in half, it would reduce carbon emissions the same amount as closing all coal-fired power plants in the US. Each of us can make choices to help reduce this waste.

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January 22, 2020

Achieve Comfort and Reliable Performance with Cold-Climate Heat Pumps

Heat pumps are on track to replace heating systems that burn fossil fuels. Modern inverter-driven models can be extremely efficient, even at low outdoor temperatures, and they are capable of supplying all a home’s comfort needs. Here are three tips for builders and HVAC contractors to reach peak heat pump performance and keep customers happy.

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