I had a Lopi Cape Cod Insert installed 1 year ago and have noticed since that time that flames can be seen through the breastplate of the stove, licking up past the bypass slider when the stove is heating up and the air is kept high. Has anyone else experienced this and is it normal? It has me concerned that more air is getting into the stove than should, as well as it being a little scary to see flame beyond the confines of the stove. I still see reburn happening through the tubes and I'm able to keep a good burn on a fully packed stove for about 7 hours, so it seems to be operating well, otherwise.