KJH, I have cooked bread on a hot day out in the gas weber. In mine, I find high is too hot though and use low but that is something you will have to work out for yourself. Does yours have a built-in temperature guide, I bought one and keep it inside the weber as my high usually runs at 220oC. I tend to check it before the time is up as it does tend to brown more quickly in the weber. Have you got the cookbook that came with yours? Heaps of recipes in it for things like scones, cream puffs, cakes, muffins. On the odd occasion I've done scones or muffins in it.
I can photocopy and send you some recipes from the book if you are interested.
