The Ziegler and Brown Twin Grill is designed with plenty of power to heat up quickly and cook lots of food with the hood either open or closed. With the hood Refer to your Ziegler and Brown Twin Grill instruction manual for details on attaching and safety connecting the gas supply. More Information?Manual. View the manual for the Ziegler & Brown Twin Grill here, for free. This manual comes under the category Barbecues and has been rated by 1 people Place your Ziegler and Brown Twin Grill (SOLD SEPARATELY) in place on the table with the control panel at the front, cart wheels on the right as shown below.