New neighbours have moved in next door and asked me about one of the previous owners gas fires. It's a nice cast iron art-deco thing that needs to be lit by match. I was asked about it becuase the new owners thought I might know why it produces huge yellow flames, but doesn't warm the room. I remember when the previous owners had it fitted (they invited everyone around to show it off!) and the "man of the house" saying that it had some special sand of some kind in a tray, and that produced the heat. At least I think that was what he said. Am I remembering this right? it was many years ago. Rather than mention this to the new neighbours I thought I would ask this forum first, just in case it was complete nonsense and I misheard what I was originally told. Didn't want to appear a complete twit! Anyway, they are having a gas-bloke come around to look at it, but I am still curious. How does the thing work? or is it just a poor fire that can't produce much heat. strange?