However this heater is rated for a 20.8A draw. For heaters, we must provision 125% of that, or 26 amps. That is too much for a 20A circuit, and appropriate for 30A. **10/2 will get the job done for this one task**.

## What size wire do I need for a 240 volt garage heater?

Sizing the Heating Circuit

AMPS | VOLTS | WIRE SIZE ALUMINUM |
---|---|---|

24 |
240 |
#8/2 |

32 | 240 | #6/2 |

41 | 240 | #4/2 |

52 | 240 | #3/2 |

## What kind of wire do you use for a garage heater?

Garage Heater Wiring

Run two pieces of the **10 AWG black insulated wire** and 1 piece of the 10 AWG green insulated wire through the conduit.

## How do you wire a 30 amp garage heater?

Quote from Youtube video: *You figure out that the draw for this heater is 21 amps so a 30 amp breaker is plenty the green ground wire will attach to the ground bar in the panel.*

## What size breaker do I need for a 30 amp heater?

Sizing Water Heater Breakers

Element Watts | Breaker Size 120v | Wire Gauge |
---|---|---|

2000 | 20 amp | 14 |

2500 | 30 amp | 14 |

3000 |
30 amp |
12 |

3500 | NA | 12 |

## How do you wire a 240 volt garage heater?

Quote from the video:

Quote from Youtube video: *This is actually just a fancy name for a relay. It's a 30 amp contactor there's a coil inside here that runs off 120.*

## What size wire is 30 amp?

10

For a maximum of 30 amps, you’ll need a **wire gauge of 10**. The most common household item that requires a 30 amp circuit is a central air conditioner. Often, people living in RVs use 30, and sometimes 50, amp systems to run all the appliances in the vehicle.

## What size breaker do I need for 240 volts?

The appropriate circuit breaker capacity for a 4000-watt heater is **20 amps** if it’s attached to a 240-volt outlet.

## How do you wire a 240V 30 amp plug?

Quote from the video:

Quote from Youtube video: *The first nice trip the larva. Okay I'm going to work on getting that ground wire hooked. Up. But making literally noon on here gonna hold our ground screw.*

## How many watts is a 30 amp 240V circuit?

7,200 watts

30-amp 240-volt circuit: 30 amps x 240 volts = **7,200 watts**.

## What size cable do I need for my garage?

Assuming that you want the garage’s electricity to power light fixtures and a couple of socket outlets, a **6mm SWA cable** should suffice.

## How do you wire a 30 amp 250v outlet?

Quote from the video:

Quote from Youtube video: *Outlet. With the screwdriver double check there's no power remove the terminals. 10 gauge wire and a plastic box install this new receptacle put the wires into the terminals.*

## What size breaker do I need for a 5000 watt 240 volt heater?

If it’s 5000W , then you’re OK with **10guage on 30A breaker**.

## How many amps is a 240 volt outlet?

How many amps does a 240V dryer use. 240V dryers typically use **between 10 amps and 30 amps**, however 30 amps is by far the most common.

## How many heaters can you run on a 30 amp breaker?

The number of heaters you can attach to one thermostat also depends on your circuit and wiring

Volts | Size of breaker | Maximum watts on circuit |
---|---|---|

240 | 20 Amp Double Pole | 3840 |

240 | 30 Amp Double Pole |
5760 |

## How many watts can a 30 amp breaker handle?

3,600 watts

The formula is 30 amps X 120 volts = **3,600 watts**.

## Will a 12 2 wire carry 30 amps?

**Yes, based on the National Electric Code or NEC, you can use 12-2 AWG cables for THHN or THWN-rated wires**. These cables are made for general purposes and can hold up to 194 degrees without taking any damage. It simply means these wires can withstand the heat temperature drawn by a 30 amp circuit breaker.

## How many watts is 30 amps at 220 volts?

A 30-amp circuit is equivalent to **7,200 watt**. The 40-amp circuit has a power output of 9,600 watt.