Making a new laundry room in an older house. Recently rented ($$$) a tool to bore a 4" hole through brick-over-block, 12-1/2" deep. All was well, nice smooth/clean hole which measures 4" in diameter.
Today decided to work on the duct and -- surprise, it's slightly oversize (4" is internal diameter, not outside?) I have two different brands of outside vent kit here, neither will fit.
OK, where do I get (a) 3-3/4" ducting, or (b) some tool (better than a chisel, this hole is deep) to open up the hole 1/8"?
Right now I'm faced with possibly trying to fabricate "undersized" ducting and closing the seam with pop-rivets, and then figuring out how to attach to the outside "cap".
Not sure if this is an "appliance", a "masonry" or "HVAC" question, I'll start at this sub-forum.
Today decided to work on the duct and -- surprise, it's slightly oversize (4" is internal diameter, not outside?) I have two different brands of outside vent kit here, neither will fit.
OK, where do I get (a) 3-3/4" ducting, or (b) some tool (better than a chisel, this hole is deep) to open up the hole 1/8"?
Right now I'm faced with possibly trying to fabricate "undersized" ducting and closing the seam with pop-rivets, and then figuring out how to attach to the outside "cap".
Not sure if this is an "appliance", a "masonry" or "HVAC" question, I'll start at this sub-forum.
