Leading U.S. cities are filling a crucial information gap in the residential real estate market by requiring home energy disclosures for potential homebuyers: a much needed transparency measure and consumer protection practice. This process provides buyers with an energy efficiency rating on every property listed for sale. An online resource and a support network are available for local governments that want to adopt similar energy disclosure measures.

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.

Seven times more heat can escape through a window than a wall. There are more choices than ever to balance energy performance with the other important benefits of windows. Choosing windows wisely will help close the gap.

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.

New homes and buildings will stand for decades, if not centuries. The carbon emissions embodied in the building materials and resulting from the manufacturing and construction processes must be factored into their overall carbon footprints. These four steps will get us started on the path to zero carbon.

With only a few years left to avoid the worst impacts of climate change, we must move rapidly toward a zero carbon society. Direct action is essential, but can’t happen fast enough. Carbon credits must play an important role in the transition.

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!

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.

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.

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.

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.

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.