What to use for a heat deflector?

[gotbags-10]

So I'm just wandering how to add another rack to a uds on the bottom. Seems like a big waste of space. I realize by doing nothing that the temp would be too high so I know some of u put in heat deflectors. I was wondering what kind of results you are getting. I see other charcoal smokers that have practically no room between the fire and bottom grates. Obviously they have a water pan or something of the sorts. Or what about a bid pan full of sand? I'm just trying to see what others have done.


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