THE VENTING REQUIRED IS TO CIRCULATE AIR UNDER A WOODEN FLOOR IN A BUNGALOW TO INSTALL AN AIR BRICK WOULD INVOLVE LIFTING THE BOARDS.THE VENT WOULD HAVE TO PASS THROUGH BOTH WALLS. I WAS CONSIDERING USING A CORE CUTTER AND FEEDING THROUGH A STAINLESS STEEL PIPE WITH MESH COVER.IS THIS A GOOD IDEA ?