How do you clean and maintain a patio heater?

@rubie 

To clean and maintain a patio heater, follow these steps:

1. Turn off and disconnect the heater: Before starting any cleaning or maintenance work, ensure the patio heater is turned off and disconnected from any power source.
2. Remove any debris: Use a soft brush or cloth to remove any loose dirt, dust, or debris from the exterior of the heater, including the reflector, housing, and base. Be careful not to scratch or damage any surfaces while cleaning.
3. Clean the burner assembly: Remove the burner cover and carefully clean any dirt or soot from the burner assembly using a soft cloth or brush. Avoid using any abrasive materials or excessive force.
4. Check and clean gas supply line: Inspect the gas supply line for any leaks, cracks, or loose fittings. If any issues are found, consult a professional to repair or replace parts. Use a damp cloth to wipe away any dirt or residue from the gas supply line.
5. Clean the emitter grid: If your patio heater has an emitter grid, remove it and gently scrub away any grease, dirt, or debris with warm soapy water. Rinse and dry thoroughly before reattaching.
6. Inspect and clean the pilot assembly: Check the pilot assembly for any blockages or debris. Use a can of compressed air or a small brush to carefully clean any obstructions in the pilot orifice, ensuring it is clear and free of dirt.
7. Check and replace lava rocks or ceramic logs: If your patio heater uses lava rocks or ceramic logs, inspect them for any signs of wear or damage. Replace any broken or worn pieces to ensure proper heat distribution.
8. Inspect and clean the valve and regulator: Carefully examine the valve and regulator for any signs of damage or leaks. If there are any issues, have a professional replace or repair the parts as necessary. Wipe away any dirt or dust using a soft cloth.
9. Store properly: If you are not using your patio heater for an extended period, it is advisable to clean it thoroughly and store it in a dry, covered area to protect it from the elements.
10. Regular maintenance: Schedule regular maintenance checks with a professional technician to ensure your patio heater is in proper working condition.

Remember to always consult the manufacturer's instructions for specific recommendations on cleaning and maintenance procedures for your particular patio heater model.