Salma

You will need a higher amp in your circuit breaker for example if its 30 amp you will need 60 amp. read the instruction on the heater how many amp it require then add it to the devices amps attached to the same circuit breaker . for exmpale your heater is 30 and if the pump on the same breaker is 20 you will need at least 55 or 60 to handl the power taken from this circuit breaker. Good Luck Find Fuses and breaker at Dollar Store