There's debate over whether the beer here flavours the chicken but its steam sure creates a delicious juicy bird. If you don't have a kettle-style barbecue, a gas barbecue with a lid or an oven will suffice, but you won't get that same smoky flavour.
Note Wood pieces for smoking are available from hardware and barbecue stores. Indirect grilling is cooking away from the heat, using the top rack. It's important to have your coal base well established and glowing before adding the wood.