Any issues wiring bathroom exhaust fan to low-voltage heated mirror?

https://youtu.be/NfRuLlTp5s8

Does a bathroom fan need to be on its own circuit?

Bathroom Circuits



If the vent fan has a built-in heater, it must have its own 20-amp circuit. This is called a “dedicated” circuit because it serves only one appliance or fixture. Heat lamps, wall heaters, and other built-in heating appliances may also require dedicated circuits.

Can a bathroom fan and light be on the same circuit?

This is acceptable. Many bathroom fans include lights with the intention of both being wired to one switch on the same circuit. They can also be wired separately to different switches.

How do you wire a bathroom fan with a light and heater?

Quote from the video:
Quote from Youtube video: All right other white has a red wire going to it. And the two blacks have a black and a blue going to it. Okay so that seems fairly basic all your whites are going into one of the whites.

Can a bathroom exhaust fan be on a 15-amp circuit?

Important NEC Bathroom Regulations



General lighting/fan circuit required: Each bathroom should have a circuit for lighting and an exhaust fan. According to the Code, this circuit may be a 15-amp circuit if it serves just lighting, but it should be a 20-amp circuit if it is also serving a vent fan.

How many amps does a bathroom exhaust fan draw?

The average bathroom fan uses right around 36 watts of energy. Thirty-six watts also translates to 120 volts and 0.3 amps, which is the average size and power usage of most residential bathroom fans. Average power can fluctuate depending on fan features and size.

Can bathroom fan be on same circuit as GFCI?

Just pigtail the wires (hot and neutral both) before the GFCI, and don’t feed the fan through the GFCI, and you’ll be fine.

Can I wire an exhaust fan and light to the same switch?

It is not a bad idea to connect the bathroom fan and light in your home on the same switch. It is safe to operate both at the same time. Running the fan in the bathroom is one of the best ways to prevent mold from growing in your bathroom. Mold in the bathroom is a result of the condensation of hot water.

Can you wire a fan and light on the same switch?

You can install a ceiling fan with a light in a room with a single light switch with a simple wiring trick. First, turn off power to the fixture at the electrical panel. Second, remove the light fixture in the room but don’t unwire it just yet.

What kind of switch do I need for a bathroom exhaust fan?

If it’s a typical small one speed bathroom fan you can use any on/off switch that matches the load specs; just don’t use a dimmer switch intended for lights. If it’s a large ceiling fan or a variable speed fan, then you need to use one of the purpose – built fan switches: both Leviton and GE make these.

Does a bathroom fan need a 20-amp switch?

Yes, if you have a 20A circuit for a 20A load, then you need a 20A switch. You can’t put a 15A switch in there for the same reason you can’t use 14 gauge wire – the conductor is to small, leading to a fire hazard.

What kind of wire do you use for an exhaust fan?

Wiring Considerations



Most bathroom ventilation fans use a 15-amp circuit breaker and 14-gauge wiring. Due to the increased power drawn, fans with heaters usually require a 20-amp circuit breaker and 12-gauge wiring.

How much power does an exhaust fan use?

Exhaust fans typically use anywhere between 5-35 watts for residential use and can go as high as 60 watts for commercial systems as well. To get an idea of how much that is, a coffee machine uses 75-1,200 watts while a fridge may use anywhere between 50-120 watts.

How do you wire a bathroom exhaust fan?

Quote from the video:
Quote from Youtube video: What you will do is take the two white wires bunch them together and then put your copper wire in from your ceiling. And wire nut them all. Together. Now here we have a blue wire and a black wire.

Can I use 14 2 wire in a bathroom?

Bathrooms typically require dedicated 20A circuits, but that has no bearing on how much power your fan consumes. As long as the voltage is correct the fan will only draw what it needs assuming the wiring to it has sufficient capacity, which both 12/2 and 14/2 do.

What happens if you use 14 2 wire on a 20 amp circuit?

It is generally NOT okay to have a 20A circuit breaker on a circuit that has any 14 gauge wire — and most homeowners won’t run into the exceptions. If there’s any #14 wire anywhere downstream, you must use a 15A breaker to protect that wire.

Can a bathroom be on one 20 amp circuit?

The one 20-amp branch circuit can still feed all the bathrooms in the home, but it is limited to supplying only the receptacles that serve countertops and work surfaces in these bathrooms. All other bathroom receptacles are off-limits.

How far can you run 12 2 wire on a 20 amp breaker?

After these distances, the circuit will go over the recommended 3% voltage drop. You can run a 12 gauge wire up to 70 feet on a 15 amp circuit. That number drops to 50 feet if you run 12 gauge wire on a 20 amp circuit.

How far can you run 12-gauge wire without a voltage drop?

As an example, for a 120-volt circuit, you can run up to 50 feet of 14 AWG cable without exceeding 3 percent voltage drop.



For 240-volt circuits:

Is a 12-gauge wire good for a 20 amp?

“Twelve-gauge wire is good for 20 amps, 10-gauge wire is good for 30 amps, 8-gauge is good for 40 amps, and 6-gauge is good for 55 amps,” and “The circuit breaker or fuse is always sized to protect the conductor [wire].”