Lloyd Alter is Design Editor for Treehugger and teaches Sustainable Design at Ryerson University in Toronto. Most North American homes are heated, cooled and ventilated with forced air. Some have ...

Keeping occupants of a building or facility warm and comfortable is a year-round priority. Whether the leaves are turning, snow is falling, or spring is blooming, maintaining the right temperature is ...

Well-designed and properly installed hydronic radiant heating systems have earned a deserved reputation for superior comfort. Even so, many people hesitate to use these systems because they can’t just ...

Radiant cooling can save up to 50% on electricity costs for cooling a typical office building versus an all-air system. Radiant cooling has been used successfully in Walmart stores, research labs at ...