As suggested, give them a call at Ft.Gatlin Rec.
The pool is heated. I believe they are open as long as it's over a certain temperature outside, but I'm not 100% sure. A quick call and they'll be able to answer that question.
Their website indicates they are open 365 days a year, but gives no specifics on the pool. If no one else knows for sure your best bet is to contact them at (407) 254-9820.
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