10:17AM | 02/23/14
I had an open wood burning fire place for years and used without any issues.
I have recently purchased a Montlake 230 fireplace insert in which have installed as per recommendation.

I installed a 18" long x 6" vent on top of the insert as a minimum as per manufacture, I did not run the vent pipe to the top of the chimney.

The unit has since been installed and a small fire was built in the unit. While the front door is open the fire burns great but when the front door is closed and the dampner on the insert is in the wide open position the fire goes out.

The issue seems to be draft, on the front of the fireplace wall is bricked in which the joints were raked during construction. when the insert is in operation we can feel a draft in everyone of the grooves in the brick behind the surround panels, could we be losing draft in these areas and not allowing the air flow through the insert dampner to sustain the fire with the door closed, and if so what to I need to seal off these areas with?

your thoughts

Carl Knippers
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