Hello all -- we live in a 1918 bungalow that was originally built with coal-burning fireplaces. We have retro-fit two of the fireplaces with vent-less gas coal baskets (they look like coal, but burn gas) -- and even though they are ventless units, we vent them through the existing fireplace chimneys (which we had relined). These do not produce an odor but the flames have alot of blue in them and don't look as realistic as we had hoped. Recently, we added a third gas coal basket to another fireplace. This time we decided to go with a direct vent unit in the hopes that the flames would look more realistic (they do) but it has an odor -- similar to what a true ventless unit would produce. any ideas why? Is it not drafting correctly? Do these units just produce an odor? is this what the initial "burnoff" smell could be? Thanks for any advice or ideas, Tina