My pool gets good sun all day long, but I've been toying with the idea of adding a heater. Last summer, we had a really mild August in the North East and we really didn't use the pool because the water was too cold. Also, a heater would add some weeks to swimming season, which would be nice. Like everything else, I'm trying to do it on the cheap. I'd rather save a few hundred in labor and put that toward a higher BTU heater. I'm looking at a 350k to 400k BTU Hawyard for about $1,600. Is that something I can install myself? I have plenty of room near my pump and the prior owner ran a gas line right to where the heater would sit. I know I need to make sure my meter can handle the additional BTUs, but how hard is it to install a heater?