It’s important to furnish fresh outside air to furnaces, but it’s hard to figure out how that happens when you feed that air to the old chimney. And there are better ways to make sure your fireplace is safe and working properly.
All of that electrical circuitry for one thing. Wonder if they shut off the gas when their still isn’t boiling corn squeezings. And aside from the scary looking gas stove, there’s at least one electrical code violation here.