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You have to be careful here. A heater will be advertised as "X" watts, but that is only true if you connect it to the voltage source it is supposed to be connected to. If you plug it into a higher or lower voltage source than intended, it will produce a different number of watts.
Electric heaters are just resistors. When you run electricity through them, they get hot. If you run more electricity through that resistor, it will produce more heat. If you run less electricity through it, it will produce less heat.
As an example, you can find "1500W/120V" water heater elements at the hardware store. This means that if you plug it into a 120V source, it will produce 1500W of heat, and it will pull 1500W/120V = 12.5A of current.
You can calculate the resistance of the heater by taking voltage times voltage divided by watts, so this "1500W/120V" heater is really just a resistor of this many Ohms:
120V * 120V / 1500W = 9.6 Ohm
That Ohm value is physical property of the device. It will not change. If you were to take this heater now and plug it into a 240V supply, you can calculate the amps with voltage divided by resistance:
240V / 9.6 Ohm = 25 Amps
And, for watts, you can take voltage times voltage divided by ohms:
240V * 240V / 9.6 Ohm = 6000W
Sorry for the long text, but it's crucial that you understand this.
If your heater is 1500W and is INTENDED to be running on 240V, you have a 38.4 Ohm resistor. Running that resistor at the lower 208V will produce only 1126W of heat and will pull just 5.4 Amps of current.
However, if your heater is 1500W and is indented to be running on 120V, then you have a 9.6 Ohm resistor. You will almost certainly start a fire if you plug it into a 208V supply, because you will be pulling close to 22 Amps and producing 4500W of heat.
What else can I help you with?
How many amps does a 240 volt 1500 watt electric base board heater use?
To calculate the amperage for a 240-volt, 1500-watt electric baseboard heater, you can use the formula: Amps = Watts / Volts. For this heater, it would be 1500 watts / 240 volts, which equals 6.25 amps. Therefore, the heater uses approximately 6.25 amps.
What does 1500 watts equal in amps at 120 volts?
To convert watts to amps at 120 volts, use the formula: Amps = Watts / Volts. For 1500 watts at 120 volts, the calculation would be: 1500 watts / 120 volts = 12.5 amps.
How many ac amps is a 1500 watts?
Watts are amps x volts, so w/o the volts the question can't be answered. At 100 volts it'd be 15 amps.
How many amps does a 1500 W heater pull 120 V?
A 1500 Watt heating element about 1500/110 or 13.64 Amperes from a 110V service. It is assumed the heating element is made from a resistive wire.
How many amperes use an electric heater?
The amperage of an electric heater depends on its power rating in watts and the voltage it operates on. To determine the amperage, divide the wattage by the voltage (Amperes = Watts / Volts). For example, a 1500 watt electric heater running on 120 volts would use 12.5 amperes (1500 watts / 120 volts = 12.5 A).
How many amps does a 240 volt 1500 watt electric base board heater use?
To calculate the amperage for a 240-volt, 1500-watt electric baseboard heater, you can use the formula: Amps = Watts / Volts. For this heater, it would be 1500 watts / 240 volts, which equals 6.25 amps. Therefore, the heater uses approximately 6.25 amps.
Can you run one 1500 watt heater on a 125V- 15A 60Hz power strip?
Yes, a 1500 watt heater operating on 120 volts has an amperage of A = W/V. Amps = Watts/Volts = 1500/120 = 12.5 amps. It is not a recommended practice to do so.
What does 1500 watts equal in amps at 120 volts?
To convert watts to amps at 120 volts, use the formula: Amps = Watts / Volts. For 1500 watts at 120 volts, the calculation would be: 1500 watts / 120 volts = 12.5 amps.
How many ac amps is a 1500 watts?
Watts are amps x volts, so w/o the volts the question can't be answered. At 100 volts it'd be 15 amps.
How many amps does a 1500 W heater pull 120 V?
A 1500 Watt heating element about 1500/110 or 13.64 Amperes from a 110V service. It is assumed the heating element is made from a resistive wire.
How many amperes use an electric heater?
The amperage of an electric heater depends on its power rating in watts and the voltage it operates on. To determine the amperage, divide the wattage by the voltage (Amperes = Watts / Volts). For example, a 1500 watt electric heater running on 120 volts would use 12.5 amperes (1500 watts / 120 volts = 12.5 A).
What size breaker for a 1500 watt 120 volt heater?
To calculate the breaker size for a 1500-watt 120-volt heater, use the formula: Breaker size = Power (Watts) / Volts. In this case, 1500 watts / 120 volts = 12.5 amps. Therefore, you would need a 15-amp breaker for a 1500-watt 120-volt heater to allow for a safety margin.
How many amps does a hair dryer use with 25 volts 60 hz and 1500 watts?
Amps = Watts / (Volts x Power Factor). Now a hair dryer has a motor and a resistive heater so if we assume a PF = .8 the answer is: 1500 / 20 = 75 amps. Since it is unlikely that you have a 75 amp hair dryer you must mean 125 volts. The answer for that would be 1500 / 100 = 15 amps which is still high, but believable. If we assume a Power Factor of 1 and ignore the motor contribution to Power Factor we have 1500 / 125 = 12 amps.
What is the number of AMPS for a 240V 2400 watt water heater?
Watts = Amps x Volts for a resistive load like a water heater.
If a heater claims to be 1500 watts how long would it take for that heater to draw 1500 watts?
Watts is the amount of power the heater has and amps would be the draw- if it is a 120 volt heater than the amps would be 12.5 amps and it is instantaneous
How many amps does a 750 watt 120 volt heater draw?
To find the current in amps that a 750 watt, 120 volt heater draws, you can use the formula: Amps = Watts / Volts. So, 750 watts divided by 120 volts equals 6.25 amps. Therefore, the heater draws approximately 6.25 amps.
How many amps will a 400 watt heater cartrige draw at 240 volts?
The formula you are looking for is I = W/E.
