Our new Mansfield seems to have terrific draft and when it starts burning hot the fire seems to burn real hot and fast even on Low burn or air control all the way closed. Is this normal or do i need to install a baffle on the Selkirk Double walled pipe to slow down combustion? And my next question is if I do get a baffle, is it the same height as the stove adapter that is on there now? Can i just switch it out or do i have to modify it?