After a little youtube viewing I went ahead and installed it myself. It was a like for like install, so straight-forward other than the connections on the the new one being about 2 inches taller than the old one. I spent about $50 on fittings and the cost of the water heater. It took me about 6 hours but that included draining the old one, lugging the old one out and the new one down. It also included some you tube viewing, a couple football watching breaks and a trip to home depot.