[kscarrol]

We've had a tankless sweater heater for 11 years now and love it! Endless hot water so no cold showers after the wife and kids have showered etc. They do use more fuel/power when in use but more than offset that by not having to keep 40 gallons of water at 120 degrees 24/7. We did replace the heater four years ago, not because of a failure. When you look at the specs of the heater options, make note of the hot water draw requirement. Our old heater required a gallon per minute so in the summer, when the "cold" water here in New Orleans is 80+ degrees, a warm shower would not draw enough hot water to activate the heater. We upgraded to a newer model which has a much lower threshold so issue solved. OP being in Florida might face the same issue when the weather is warm...

The old heater was a Rinnai which worked fine but when we upgraded we went with a Rheem. Been four years and running strong!