Assuming this is standard house voltage of 120 VAC your 4500 Watt heater will draw about 37.5 amps. You would normally install a 50A breaker and would have to run 8 gauge wire.
A 4500 watt element will work on a 20 amp breaker if it operates at 220 volts or less. It will simply trip the breaker if the load is greater than 20 amps at 220 volts.
4500 million letres
4500 million letres
around 4500 gallons
30% of 4500= 30% * 4500= 0.3 * 4500= 1350
6% of 4500= 6% * 4500= 0.06 * 4500= 270
36% of 4500= 36% * 4500= 0.36 * 4500= 1,620
21% of 4500= 21% * 4500= 0.21 * 4500= 945
The boiling point is 84,64 oC.
4500
4500
5% of 4500 = 4500*5/100 = 225