Osburn Stratford II Wood Burning Fireplace

I've had my Stratford II for about a month. I love it. It produces plenty of heat! My primary reason for this purchase is to provide supplemental heating for the house. It is located in a room 12 feet by 20 feet that is open to other rooms with a total area of about 800 square feet. This fireplace heats the entire area to the point that I won't use it unless the outside air temperature is below 40 degrees F. That is with the fan on high, but I guess if I turned the fan down the rooms wouldn't be 79 degrees. I guess I need to learn how to use this fireplace in less than frigid weather. I like the automatic mode of the fan so that I never have to turn it on or off. It turns on when the fireplace is hot and turns off when it cools down. I've learned that if I close the doors while the fire is producing smoke the glass turns brown. It's easy to clean with cleaners made for this purpose, but if I leave the doors open ever so slightly, the glass doesn't turn brown much, if at all. The doors still overlap each other, there is just a slight gap at the top and bottom of the doors. Yes, a little room air gets sucked up the chimney. I'm getting better at this through experience. Once the fire is glowing red, I can close the doors without the glass turning brown. I just bought a screen that replaces the glass doors but I have not tried it yet. I like the option of having a choice of screen or glass doors. The firebox has only 12 inches of vertical clearance so I only load it with two levels of wood. But the firebox is deep and wide so this is not a problem at all. It has enough capacity. I can't build a towering inferno and that may be a good thing for safety. I'm looking forward to really cold weather to see if can use this fireplace to keep the heating system from having to run at all. I am very happy with my purchase.