# Quick Answer: How Many Amps Does A 1500 Watt Heater Pull?

## What size breaker do I need for a 1500 watt heater?

A 1500-watt heater on a 120-volt circuit thus needs a breaker of 15.6 amps. Because a 15-amp breaker would be too small, you need a breaker with the next highest rating, which is 20 amps. Include the current draw of any other devices on the circuit when calculating the breaker size.

## How many heaters can you run on a 20 amp circuit?

A 20-amp breaker can support any combination of heaters up to a total of 3,840 watts. For example, using a single thermostat, the breaker could support two 1500-watt heaters or three 1000-watt heaters.

## How many amps does 1500 watts need?

Using the W ÷ V = A variation of Ohm’s law, you can calculate that 1,500 watts ÷ 120 volts = 12.5 amps.

## Are all 1500 watt heaters the same?

An electric space heater rated at 1,500 watts will use the same amount of power (1,500 watts), producing the same amount of heat regardless of what you pay for it. An electric space heater rated at 1,500 watts will put out the same amount of heat regardless what you pay for it.

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## What size breaker do I need for a 20 amp heater?

According to the National Electric Code heating circuits are considered a continuous load and therefore must be derated by 25%. (For example: a 20 Amp heating circuit cannot have more than 16 Amps of load connected.) 120 Volt heaters require 1-Pole circuit breakers; 240 Volt heaters need 2-Pole breakers.

## Can a 240V heater run on 120v?

Specifically, a 240-volt, 2,000-watt heater will use up 8.3 amperes of current but a 120-volt, 2,000-watt device eats up 16.6 amps. Installing a 240-volt heater on a 120-volt circuit is not as big a safety risk, but you will notice that your heater will fail to work most times.

## How many watts can I run off a 20 amp breaker?

A 20-amp breaker can support up to 2,400 watts on a single circuit. The safe maximum for a 20-amp circuit is 1,920 watts, but circuits should not be loaded to more than 80 percent of their maximum capacity.

## What size breaker do I need for 3000 watts?

The 3000 watt is powered by a 14/2 cable and 15 Amp double pole breaker.

## How many watts is 3 amps?

3 Amps To Watts (Example 1) In short, 3 amps is 360 watts.

## How many watts is 15 amps?

The circuit and circuit breaker that you tripped have a capacity of 15 amps, or 1,800 watts (15 amps x 120 volts = 1,800 watts).

## What size breaker do I need for a 10000 watt heater?

10,000 Watts divided by 240 Volts equals 41.6 Amps. This unit requires a 50 Amp breaker.