Used to know a fella who cooked with nothing but reduced twigs, logs, splits or chunks........whatever he could find laying around is what he used. He claimed it provided more of what he was looking for that gas or charcoal. I don't think he used a Weber and know forsure he did not worry about gaps....he just burned the wood down till the flames were mostly gone than added the food. Easy peasy Louisey.
I have also done straight wood cooks.....but have yet to make a Kettle glow Red Hot from heat.........sheeeeeeeeit.