FWIW, I have this same patio heater, and highly recommend both this style and the company, highly (that and a couple bux will get you a cuppa joe). This puppy kicks out some serious heat, and isn’t too hard on propane usage. We put ours on our back sun porch, and put the Christmas tree up nearby; this heater is the only reason we were able to enjoy our tree at all this year 
I would be interested to know if these could be converted to NG as I have a hookup available outside the house.
So do you have the portable table top one or the tall steel glass?
Does this come with the glass substrate material too?
can you use these indoors?
Does the table fire pit include everything pictured? (Fire glass)