I am in Florida also and keep my pool heated to 88 degrees and it's over that for several months a year. The pool is open year round. I have an aqualogic and my cell is still going strong so the heat is not the problem, water balance is.
A few tips to maximize cell life, keep your CYA at 80 (very important) an and your TA at 70 to minimize acid demand cause by outgassing of CO2.
Add borates to 50 ppm to reduce acid demand (because of the secondary boric acid/borate buffer system that works in conjunction with the bicarbonate buffer system we call TA to "lock" the pH around 7.7 -7.8 for an extended peroid of time) and very probably chlorine demand (because of the algaestatic properties of borates).
These tips will allow you to run at a lower output percentage and to minimize pH spikes, both of which translate into longer cell life.