We put one in ours only it was a surface mount with a 750 and 1500 watt electric heater in it. The description said it was only 3.9 inches deep, but when I got it it was closer to 5" with the mounting bracket. So it took a little more work than planned, I had to cut off the bottom of 1/4 thick plate glass mirror to allow it to clear the slide. I also had to install and electrical outlet for it so a quick install turned in to 2 days of work. Since my RV has been in storage I don't have a shot of it completed but here a few on the install. We added it for the electric heat more than the fireplace so we didn't have to used propane when we were plugged in at a campsite. The heat comes out the top so it doesn't effect the slide or the banquette. This model also has different color led (disco) lights on the sides that we do not use, cost was $118 from Amazon.
