Before storing a gas grill for winter, it's important to winterize it. Here's how.
Clean the briquettes and grates by flipping them greasy side down, closing the lid, and firing it up on high for 15 minutes.
Cool and wash with warm, soapy water.
Turn off the gas at the tank and remove the propane unit. Clean the tank with warm, soapy water and wipe it dry. Clean the gas connections with a paper clip.
Clean the outside and check for chips. Sand and touch up chips with a paint designed for high temperatures.
If you store it outside, replace the propane unit and cover. If you store it inside, keep the tank off of it.
Store the tank outside (away from kids and dryer vents) in an upright position. Cover gas line openings with plastic bags to prevent bugs and spiders from nesting there.