I would'nt think that the pool heater would be a problem as far as the pool skim is concerned. It creates a suction of everything floating on top of the pool (grass clippings, bugs or what ever) If you do a search on this site on the pool skim you will find it has alot of good reviews. I have found that a couple times a year(when we've had a rain) I vacume to waist to get that stuff at the bottom that tends to be hard to get out.