Gas fireplace insert, two yrs old, not used at all while it was in the wall. I changed it because I replaced it with a bigger unit. It comes with the full skirt around the front. Dimensions are 36w x 34h x 14d.
It's a Kingsman model ZDV3622N,
http://www.gasfireplace.com/files/gas/Kingsman%20ZDV3318-3622.pdf