Q1: Does this gas fire pit come with a lid as described the lave rock if not using it? A1: Yes, it comes with a lid so it can be used as a coffee table, etc. Q2: What size propane tank fits it? A2: 20 lbs Propane tank is recommended. Our gas fire pit table can store a 20-pound propane tank in its base. Q3: Is this gas fire pit an effective heat source? Do I have to sit close to feel the heat? A3: This fire pit is a great heat source. If you have it in a stern house partially covered it heats it very fast. Q4: Approximately how many hours of use do you get from one propane tank? A4: A 20-pound propane tank can last about 10 hours. Q5: Can the flame of this gas fire pit be adjustable? A5: Yes, you can shut the flame height after lighting it using the dial to lower/raise the flame. Q6: When using this fire pit table, where is your propane tank placed? A6: There is enough space inside the fire pit table which can be used to put the propane tank. Q7: Can it be used on a wood porch/deck? A7: Yes, our propane/gas fire pit can be used on a wood porch or deck.