I broke down and bought a new char-griller with firebox....i wanted something that i could smoke with and grill using charcoal...the electric ECB worked fine but i missed that charcoal taste. has everyone sealed their firebox on the CG? is it needed? i've been waiting to to put it together so i can seal it....i have been trying to find that Rutland Hi-temp stove& gasket cement that Teetoe used..i've been to home depot and lowes.. and can't find it........is there anything else that works? or should i just put it together and start smoking?