Using your 48000 BTU bronze steel propane patio heater is a breeze. First, make sure you have a refillable 48000 propane tank. Connect the tank to the heater as shown in the assembly guide. Once it's connected, use the piezo ignition system to start the heater quickly. You can adjust the heat intensity to your liking by using the adjustable feature. When you're done using it, turn it off. Thanks to the automatic safety shut - off, you don't have to worry if you forget. Just in case, always double - check. As for maintenance, keep the heater clean. Wipe it down regularly with a dry cloth. Make sure the area around the heater is clear of any debris or flammable materials. And remember, this heater is for home use only, not for commercial purposes. If you need to move it, it's very portable, so you can easily take it with you on trips. Also, full assembly is needed when you first get it, so follow the instructions carefully.