direct me in the rite direction and I'll order one. Dont know much about them . Seams to be a few with different rangesHonest truth,you should buy an magnehelic gauge(ebay is fine)and study it,while doing tests.(same as a professional does).Then you can use sealer,up and down the stove sides,while watching the meter.This is what a professional would dr you can just quickie caulk/seal the outer edges of the front cast member,and see what it does.But,what about the top and bottom?Do you trust your workmanship?Just thoughts.