Using your Pocket Rocket Deluxe Stove is easy. First, make sure the stove is on a flat and stable surface. Connect the canister securely to the stove. Then, use the Piezo Igniter to start the flame. Adjust the flame as needed for different cooking tasks. For a faster boil, open the valve wider, and for simmering, turn it down. When you're done cooking, close the valve on the canister to turn off the stove. Let it cool down completely before storing. As for maintenance, keep the burner head clean. You can use a small brush to remove any debris after each use. Check the connections regularly to ensure there are no leaks. Store the stove in a dry place to prevent rusting. And always handle the canister with care to avoid any accidents.