One more comment. Most temp guages are garbage. Don't trust it and get something that can accurately measure grate and meat temps (that one not really important for ribs, but great for some things like pork butts). Thermoworks makes good products.
Agreed, I use a Fireboard.
It is expensive, but has been worth every penny IMO.
The one I got has an attached little fan drive that you position in your air draw opening for the firebox, and connect it to the Fireboard itself.
The Fireboard then can be set to read one of 6 probes as the grill temp, and you give it a target, and it will modulate the fan to draw roughly as much air as is needed to push the grill temp up to where you want it.
In a perfect world you give it a nice hot firebox with white coals from a chimney, creep up just below that 225 target and then let the little fan run at real low power 5-10% and keep that temp nice and steady.
I've used it extensively when I smoke brisket... can easily stick 2 or more meat probes in the brisket, and have 2 or more grill temp probes, and still have 2 more if you need meat probes for other cuts.