Hi guys im a newbie here and have a few questions for you. I recently installed a brunco stove insert in my house with 8in ss chimney liner and the manual says to burn soft coal only which is only cause of the epa correct? would burning wood cause any issues? Cause I get all the wood I want for free. And also it burns wood rather fast because of all the air underneath the shaker grates I think would there be any way to modify the grates to more of a wood stove type like maybe just laying a plate over the grates? Thanks