New 5er has the electric fireplace. Didn't think I'd ever care for it, but the camper came with it. I still don't care about the fake fire, but the heat it puts out is pretty nice. It takes the initial chill off and keeps the furnace from running so much. Now, when it gets really cold, that will prove how truly functional it is. Although, the label on it says it's designed to heat 500 square feet (approximately 22x22 feet), that I'd like to see when it's zero degrees outside.
For the OP, nice modification there! Good job!