I’ve burned for three years and the gasket on the ash pan seems to be thoroughly compressed. Also, late in this last season, I started smelling a touch of smoke under certain conditions...I -think- it was coming from the stove top. So, i’m Going to replace the gaskets. I can source the material locally, but am not sure what to specify and didn’t notice such info in the instruction manual. Can anyone help? Also, while I’m doing those two gaskets, are there any others would commonly need to be replaced? Thanks!