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Direct Vent Zero Clearance fireplaces are designed to vent directly out of an exterior wall or through the roof.
Their sealed double pipe venting system makes them very efficient heating units with outside air coming through the outside layer of vent pipe directly into the firebox for combustion and waste gases exiting through the inner pipe.
Many come with the same features as the efficient inserts. (Some high efficient inserts use this direct vent system with double liners in existing fireplaces for greater efficiency and improved air quality).
Direct vent fireplaces are usually zero clearance, which means that they can be installed with little or no clearance to combustible materials: framing may be applied directly against the unit. The price range for quality direct vent fireplaces is $1,300 to $5,500 or even less for clearance items.
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