We currently have gas central heating and an open fire in the living room. We use it only in the winter at weekends and Christmas but I am recently worried about how ecologically awful it is and not good for our health or the neighbours. I would like to keep the surround and as much of the original 18" box as possible but am looking at electric as gas doesn"t seem much better for the environment. Has anyone replaced with a realistic looking electric fire? I've been looking at the ones with the flame made of steam. Do they make a noise when they are on? Any recommendations would be very welcome. Thanks.