Heatilator fireplace that flares out in the flue

Ducky 1 post Nov 22, 2006 10:56 AM

My fireplace was constucted with a 42" metal heatilator box. The walls above the damper taper to a 16"x12" opening about 28" above to face. This seems to be the nearest location that has any ledge to grip. However, just above this metal the ledge has a 18"x16" dimention that tapers up to a 12" square flue liner several feet above. Of the sizes you list, only the 15"x36" would seem to be big enough at this location, but it's disproportionately long for the 18" width of that opening. Would maybe consider using a 15"x15" and an extender, placing it higher up in the chimney? Suggestions, please . . .

jasonr 18 posts Nov 22, 2006 11:06 AM

You may have a wood burning fireplace insert instead of a built in Heatelator, but either way this would be my advice... Order a custom 18X18 Chimney Balloon draftstopper and also get a HEK extender for the valve. This will allow you the reach to get to this higher height in the flue. That area above the metal ledge is where you want to install at as long as that metal edge does not have any dangerously sharp edges. An 18X18 Chimney Balloon with an extender will cost $64.99 including USPS shipping. Custom Balloons do take 14 days from your order to ship, due to build time. You can call the customer service line if you have any further questions about this particular application. ---------- Jasonr Moderator

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