If the 12,000 BTU A/C only requires 20 amps to run then yes you can use the same 12 gauge wire but you cannot change it to a 15 amp breaker. You will need to install a 20 amp double pole breaker. If it requires more than 20 amps you will have to replace the wiring and breaker.
Provided you use wire that is rated for 20 amps.
80% of the rated circuit. 10 amp circuit is 8 amps, 20 amp circuit is 16 amps, etc.
A double breaker is a breaker that has 2 switches on it. One of the switches is 20 amps and the other is 30 amps.
20 000
There are 20 million amps or 20,000,000 amps.
If the 12,000 BTU A/C only requires 20 amps to run then yes you can use the same 12 gauge wire but you cannot change it to a 15 amp breaker. You will need to install a 20 amp double pole breaker. If it requires more than 20 amps you will have to replace the wiring and breaker.
20
usually 20 btu's per square foot so......12000 btu's should do fine
5000 BTU's should work for a room that size.
20 btu per square foot
250 watts divided by 12 volts = amps or around 20 amps
212-65=147. 147(20)=2940 btu needed is this right?
20 of them
Recommended for rooms up to 20' x 20'
200 million - 200 000 000 20 billion - 20 000 000 000
20hp is 50,889 Btu