Electric Fireplaces

Recently purchased a Sunnybrook 5th wheel. I have an area 32" wide, by 23" high, by 7" deep. There is an additional clearance of 3" forward of that before the slide would be in the way. I have toyed with putting in an electric fireplace. However, I know nothing about them. Any input would be most appreciated. I am currently supplementing my LP furnace, with a Lasko 1500 watt ceramic swivel heater. I am looking for more heat output, and something a little more classy than having a heater in the middle of my living room. Please feel free to give me any advice you know of!
Thank you