I need to cut a rectangular hole in the side of my cast iron wood stove, about 3"x5". I was thinking to drill holes for the corners and then try to cut with a sawzall. I'm guessing the iron is about 1/4" thick. Think that will work? What kind of blade would I need? Any other suggestions? (I don't have a cutting torch or an angle grinder).
Thanks in advance.
PS For anyone who's curious, it's a very nice stove but it has a 'dead' airspace in the top that cannot be accessed except through a couple of narrow slits along the top. This space is not part of the fire box, I'm not sure why it's there at all... My three year old intuitively understood what those slits are for, he filled them with plastic mardi gras beads. I found out about it when we fired up the stove. Now I need to chip/burn/sandblast that space out.