Final answer:
The amount of current a water heater will draw on a 208-volt circuit depends on its power rating in watts. With a hypothetical power rating of 8,800 watts, it would draw approximately 42.3 amps on a 208-volt circuit. However, the exact current draw requires the heater's actual wattage rating.
Step-by-step explanation:
The water heater's current draw on a 208-volt circuit cannot be precisely calculated without knowing the power rating (in watts) of the heater. However, we can use the concept of power to understand how to approach this kind of problem. The power rating of a device in watts is equal to the voltage applied times the current it draws (P = VI), where P is power in watts, V is voltage in volts, and I is current in amps.
Using information given in similar scenarios, if a hot water heater is rated at 30,000 Btu/hr, this is equivalent to 8,800 watts. With a 208-volt supply, you would calculate the current by rearranging the power equation to I = P/V, which yields I = 8,800W / 208V, resulting in approximately 42.3 amps of current. Remember, this calculation is only valid if the heater has a rating of 8,800W; the actual rating of your water heater is required for an accurate calculation.
Using information given in similar scenarios, if a hot water heater is rated at 30,000 Btu/hr, this is equivalent to 8,800 watts. With a 208-volt supply, you would calculate the current by rearranging the power equation to I = P/V, which yields I = 8,800W / 208V, resulting in approximately 42.3 amps of current. Remember, this calculation is only valid if the heater has a rating of 8,800W; the actual rating of your water heater is required for an accurate calculation.