Absolutely not.
I'm licensed in pool service in the State of Florida. There is no state law in regards to your question. A condo pool is classified in Florida and many other states as a Class C: Semi Public Pool. The only temperature regulation is that spa or hot tub water cannot exceed 104 degrees. Perhaps your condo's by-laws have a rule that the pool water cannot be heated above 79 degrees. Recent research has indicated that the optimal pool water temp for rigorous swimming or excercise is 78 degrees.
A safe, comfort temperature for an outdoor pool in southern Florida would be about 85 degrees Fahrenheit. Most outdoor pools in Florida are not heated, and there is usually no problem in swimming in cooler water.
A gas heated to millions of degrees would emit X-rays.
Skin temperature is about 88 degrees F. A pool heated to 88 degrees is almost instantly comfortable.
if it is heated above 1200 degrees celsius than it melts
Almost everything expands when heated. There are a very few substances that contract when heated under certain conditions... water, for example, contracts very slightly when it is headed from 0 degrees to 4 degrees Celsius.
100 degrees
Wood would expand about 0.3 millimeters if heated to 100 degrees
Yes, it is heated year round to 75-80 degrees Fahrenheit.
All liquids expand when heated. e.g. Mercury in a thermometer. One exception may be water when heated form 0 to 4 degrees Celsius.
100 degrees celsius
it denatures