Trying to find a fireplace

I have an old Preway fireplace in my basement. I would like to replace it with something a little more efficient, but will not rely on it for a source of heat. I want the atmosphere of a fireplace more. We burn most weekend nights from fall, winter and spring, so it would be nice to get some heat out of it. I am looking at the Security Chimney HE-43 since it can be operated with the glass doors shut like a stove or you can slide the glass doors beside the unit (like an armoire) and pull out screens and have a more traditional open fireplace. It's advertised as 50% efficient. It can also use double walled chimney or insulated chimney. Does anyone have any experience with this unit? Do you know of any other units that might fit for my situation.

Thanks
Chris