Without the amperage the device uses this question can not be answered. The size of wire depends upon the amount of amperage a device draws. The voltage is independent of the size of the wire, it is an insulation factor. Most commonly used wire is rated at 300 volts.
It is not the voltage you need to be concerned with, it is the amp draw. What is the amp draw for the furnace? More than likely, you will need 12AWG or 14AWG.
The wire size of the welder is based on what the amperage rating of the welder is. This can be found on the welder's nameplate. Look for the input amperage.
To size a wire for a device the amperage of the device is needed.
For a standard clothes dryer, new homes are roughed in with 3C #10 cable which is rated at 30 amps.
any wire just shuve it in lol :)
The wattage of the water tank is needed to size the breaker and the wire to feed the tank.
To answer this question the wattage of the heater is needed.
a 2p 20 amp should work fine for a single 220 air conditioner,
6 AWG
Any voltage can be applied to any size wire. It is the load amperage that the wire must be sized for. The larger the amperage, the larger the wire size must become.
The wattage of the water tank is needed to size the breaker and the wire to feed the tank.
To answer this question the wattage of the heater is needed.
You need to know the amperage to size the wire. For 220 V at 20 A you would need 12 AWG. At 220 V at 30 A 10 AWG.
a 2p 20 amp should work fine for a single 220 air conditioner,
6 AWG
# 3 gauge
Any voltage can be applied to any size wire. It is the load amperage that the wire must be sized for. The larger the amperage, the larger the wire size must become.
Does this air conditioner require 220 volts?
Use AWG # 3 copper.
Yes as long as you use the correct size breaker.
10 AWG in copper.
12 AWG in most circumstances.