Trying to take a break from my stove decision making madness. When installing an insert is there any way to have it stick out further onto hearth? Possibly offering more heat this way unless i am thinking wrong. Also as far as block off plates go what is the desired height? Would putting one up at lintel height be more beneficial or up againsted existing damper frame the proper way? Seems like if it were to be lowered down to lintel height you could stuff even more roxul above it and having it lower would just force more hot air outward into living space? thanks again everyone