 It's much more cheaper to do that than to replace the oil-fired hot water heater that I had. But I'm just wondering, is there any negatives to it? Well, it's a little more expensive to run than oil, but as you say, it's a lot less expensive to buy. I'm actually surprised that it only lasted 13 years because oil-fired water heaters seem to last a lot longer than standard water heaters. I mean, if you just look at the warranties, the standard water heaters, the electric water heaters, may have a five-year warranty period.