Heaters and Break machine should have info stickers on them.
Amperage = Watts/Volts
house voltage is never 120, for calculations use 110(but 100 is safer)
20amp breakers will typically hold 23-25 amps before they trip
Amperage = Watts/Volts
house voltage is never 120, for calculations use 110(but 100 is safer)
20amp breakers will typically hold 23-25 amps before they trip