Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Garage Heater Electrical Question
View Single Post
  #11 (permalink)  
Old 12-22-2007, 11:09 PM
ford2go ford2go is offline
Registered User
 
Join Date: May 2004
Location: MinnESOTA
Posts: 23
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I don't mean to be negative, but I don't believe that your circuit is adequate.

Generally A/C uses 20amp breakers. That's what I have for my home A/C, which is hard wired. A 40 amp 220 breaker will say 40 amp -- not 20.

My stove circuit has a 40 amp breaker -- and it's labelled 40 amps

Check the wire size in the receptacle -- if your A/C is 20 amp, the wire will probably be 12 gauge.

From your description, the heater will certainly need a 30 amp breaker. -- It could draw 22 - 25 amps. The fan will also draw some -- although nothing too serious.

The pigtails and plugs are also rated for amps. Generally they are rated for
electric dryers and stoves. Dryers are the smaller of the two, I believe.

If you hook up to an underrated circuit with proper breakers, you will blow the breakers on a consistent basis. This will not do your wiring any good.

If your circuit is properly rated, there shouldn't be a problem in plugging in a heater or an A/C. You can only plug one in at a time.

Just trying to help,

ford2go
Reply With Quote