I saw today's episode that presented the gas stove inserts for existing fireplaces.
I have a rumsford style fireplace that I have used only once since it seemed to send all the heat in the house up the flu! Having a fire dropped the temp 5 degrees in a few minutes!
I would like to continue to use wood as fuel.
My ideal solution would be a fire-resistent glass faceplate. Hopefully I could vent heat out as well, but without drawing room air in and out the flu. There already is an intake vent that draws air form outside. This could be inside the faceplate.