The monster black hole at the center of our galaxy may be unleashing huge, gassy explosions — and now, astronomers think they've pinpointed the exact spot where that superheated gas is spilling ...

Shift the hole so the top of the vent cap rests on the high point of the lap siding. Pull the vent cap and duct apart to make measuring easier. Bore a 4-1/4 inch hole with a hole saw. Pro tip ...