Heating & Cooling
District heating systems provide economies of scale in large cities like Copenhagen.
HVAC—heating, cooling, and ventilation—is responsible for more than a third of energy use in commercial buildings in the U.S. Smart designs can easily save upwards of 40% of that energy, often with strategies that offer instant or short payback. And good design that focuses on thermal comfort supports healthier, more productive occupants.
Heating & Cooling
Deep Dives
Get up to speed on complex topics. You can also earn CEUs and download PDF Spotlight Reports.
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Quick Takes
Jump straight to the essentials with these short explanations of green building concepts.
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Product Guidance
Unbiased information from our product experts helps you separate green from greenwash.
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Enertia Double-Envelope Home Still Has Problems
Product Review
Although its passive solar design is sound, the Enertia double-envelope home's energy performance claims may be overstated and its design presents fire risks.
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Cold Climate Heat Pump Redux
Product Review
The two-stage high-capacity cold-climate heat pump that was introduced in 2004 and then discontinued in 2005 is back, and from more than one company.
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Climate Energy Brings Combined Heat and Power Home
Product Review
The idea of combining electricity generation with the production of useful heat-referred to as combined heat and power (CHP) or cogeneration-has long been attractive. Now, after many false starts, a viable residential-scale CHP system is about to enter the market.
In The News
We break news down to the essentials and provide expert analysis.
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Thermal Energy Storage Units Come Down in Size
News Analysis
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Suspended Ceilings Save Energy, Says Industry Study
News Brief
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Regional Standards for Air-Conditioners in the Works
News Brief
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New Program to Cut Outdoor Wood Boiler Emissions
News Analysis
The U.S. Environmental Protection Agency has announced a new voluntary testing and labeling program for outdoor wood boilers to reduce their particlulate emissions.
Perspective
Thought-provoking opinions from the most trusted minds in sustainability.
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Learning Resources
Syllabus supplements and CEU content, with automatic reporting for AIA and GBCI.
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Just For Fun
Something weird happens every April at BuildingGreen...
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