When you first look at fireplaces from Cocoon Fires USA, you could easily picture yourself smack in a 1970s split-level complete with an Eames Lounge Chair, conversation pit, and shag carpeting. Fortunately, ‘70s hipster cool is back. Cocoon produces a wide range of contemporary design fireplaces that use ethanol-based biofuel, so the environmentally friendly units burn cleanly. As the fuel burns the main body of the fireplace heats and radiates warmth throughout the room, the company says. Plus, because each unit only produces about as much CO2 as a candle, it does not need a flue. (One caveat: Make sure to ask the company if its units give off a foul odor, as some other brands have been accused of doing.) Available in a mirror polished finish or black carbon steel, the line includes the Aeris hanging, Terra freestanding, and Vellum wall-mounted. www.cocoonfires.com.