Is this a gas fireplace? Nicely done. Who is the mftr of the fireplace please? - Any guidance would be appreciated. We were going to put a double sided, wood burning fireplace in our home....but after visiting a fireplace retailer......I'm reconsidering for the pure heat efficiency of it all. (I guess I can put a firepit in the backyard ......nothing like a REAL fire, the smell of the wood, etc. »