The repair unit with the addition of a Sleepy Hollow design, 18 gauge refractory stainless Rumford smoke chamber with DROP-IN™ damper.  The insulated smoke chamber connects to Cera-foil insulated round or oval 6”, 7”, or 8” diameter SuperFlex flexible stainless steel flue liner.  Today, many fireplaces do not yield satisfactory results.  Many are old or in disrepair.  Many do not meet codes of safety clearance to combustibles.  Oversized or undersized flues and outside exterior wall construction equal cold and/or smoky performance.  Many metal heat circulating models are rusted out and dangerous.*  The fully insulated Super Vent retrofit system corrects these flaws, transforms a fireplace into a restored super safe high heat fireplace, without altering the fireplace facing.  *According to the Consumer Product Safety Commission, fireplaces accounted for nearly 20% (7,700) of solid fuel related fires with almost 55 million dollars in property losses.