My jersey shore heaters don't last long, they rust out. I'm talking about my Pentair 200k btu. this is for a 7000 gallon pool
My pool guy is recommending another Pentair. installed for 2300$. Is there a better more longer lasting solution.
the heater is outside by the pump and filter.

I can't afford to replace this every 5 yrs, oh and we like to keep the pool temp at 85.