I have a floor model without a mantle. I built it a base and put on the hearth in front of the real fireplace. It looks very much like it is the fireplace, especially when it is turned on. It doesn't effect my electric bill much, but I don't use it 24 hours a day, either. Adjustable heat, choice of flames, timer, back lights (yick), option to hang on the wall, etc. I can also move it to access the wood burner if the power should go off. Works for me.