Always keep the drip tray filled with water (depending the model). This allows any running off juices and fat to dissipate in the water thereby preventing smoking and flare-ups. You will see some smoke during the first use. This is normal and will not continue for long. If you continue to see smoke, be sure the grill plate has been cleaned properly.
The water you add for the cooking process will create a cool zone, below the cooking surface, into which all the grease will fall and be kept, preventing it from burning on a hot surface and causing fumes or flare-ups.
The products can be fully dismantled for easy cleaning. Grid, cooking plate and water reservoir can be cleaned in the dishwasher. The body of the grill should be wiped down after each use. Never immerse in water. After use, switch off and disconnect your BBQ, wait until fully cooled before cleaning. Grids, handle and base can be wiped with a sponge and washing-up liquid. The heating coil is not to be cleaned. If it is really dirty, wait until it has cooled down and wipe with a dry cloth.