You would need to use a #12 copper conductor to continuously draw 14 amps at 120 volts.
An 18 gauge wire can handle a maximum amperage of approximately 16.5 amps at 12 volts.
6 AWG will handle 50 amps with a voltage drop of about 4 volts. If you go to 4 AWG and limit to 50 amps your voltage drop will be 2.5 volts.
The amps that a four gauge wire will handle will depend with the thickness of the wire. If the wire is thin, the four gauge will handle 95 amps.
For a 5kW heater HVAC system, you would typically need to use 10-gauge wire to handle the current load safely. It's important to always consult the manufacturer's specifications or a licensed electrician to ensure you are using the correct wire gauge for your specific setup.
15 amps
An 18 gauge wire can typically handle around 16 amps of electrical current.
An 18 gauge wire can typically handle around 16 amps of electrical current.
A 14 gauge wire can typically handle up to 15 amps of electrical current.
AWG # 10.
30 amps.
14 gauge wire is for 15 amp circuits. At 220 volts that would be enough for 2.4 kw.At 120 volts it would need 12 gauge wire which is rated for 20 amps.
A #14 wire will do the job.