Gap at liner and stove top

[adamh3844]

Hello, I use the fire place at my home a lot and decided a wood stove insert would be best. I purchased flexible liner with insulation and cap and all. The stove is an older insert that has a rectangle exhaust top connection.
I installed the liner and adapter for rectangle stove exhaust to circular liner. Where the liner is suppos to attach to the stove there is roughly a 1” gap as the stove doesn’t sit far enough back for it to line up perfectly. I am already roughly 2000$ into the install and tested the stove with no exhaust leak into the room or at the top of the chimney. How severe is it if the chimney liner and stove are not air tight at the stove exhaust? It has a strong upward draft through the liner and The insert is sealed around the opening of the fireplace.
Thanks for any advice

 

[begreen]

There should be no gap between the liner and the stove. If you can post some pictures we can see if there is a good solution.

 

[BigJ273]

Your worry is not it leaking smoke, your worry is it sucking air, which it will do. It will cause the temp to rise drastically

 

[bholler]

Your worry is not it leaking smoke, your worry is it sucking air, which it will do. It will cause the temp to rise drastically

You mean fall correct?

 

[begreen]

It will cool the flue gases and weaken the draft, increasing the chances of creosote condensation in the liner.

 

[BigJ273]

You mean fall correct?

Yes. Correct. I meant cool off. My brain apparently got twisted for a moment