Hi thseng,
I think you are on to a good idea and one which I intend to explore when I get enough cash to buy the decorative fireplace my wife wants. I could go with either propane or natural gas but would proabally do propane because it is a stand alone system, you are not depending on the gas supply, only what you have in storage.
I am eager to hear the responses from the forum to learn about these products.
This maybe the first preparedness product that my DW will actually support!
Mike