Hi,
Is it safe to use extension cords with window air conditioners?
Thanks for all replies.
Debbie ____ Deborah Oney Blood Recall / Withdrawal - Creutzfeldt-Jakob Disease (CJD)
Yes. A heavy-duty extension cord rated for the air conditioner's wattage. Use as short a cord as you can to reduce the voltage drop.
Bob
snipped-for-privacy@aol.com (DebbieOney) wrote in news:20040804002959.04872.00000911 @mb-m12.aol.com:
You didn't say how long the extension cord would be, and that is a factor to consider. In general, you should be able to use a cord that meets or exceeds the existing the capacity of the line cord on the air conditioner. The longer the cord, the the greater capacity it should be.
The power gets to the wall from the circuit breaker via a long wire. It's just in the wall and generally pretty thick.
So, depending on how big the AC is and how long the cord is, the answer is either "Yes" or "No".
If your AC draws under 14 amps (and never more), then your typical 50' orange extension cord that is rated for 14 amps will work for you.
if it's a huge 220Volt/30Amp AC unit, then you'll make a lot of heat in the orange extension cord right before it melts in two. With or without sparks.
In short, more info would get better answers.
Cords have a power rating. It should exceed the needs of the AC.
The instructions with the AC unit are likely to include details of what size and length of cord is safe.
Debbie> Hi,
Depends on who wrote the instructions, technical writers or the lawyers. As the years go by in our "SUE YOU!" society, you are much more likely to find a big, boldface WARNING that you can not use extention cords plastered in the front of the book along with all of the other cover-your-ass material. So much safer for them than giving you details on what you can/can't use.
There are times that IS the right answer.
Maybe AC makers have some minimum voltage in mind, below which the motor starts drawing more current and overheating, based on an assumption that it's plugged into an NEC wall socket. Meanwhile, extension cord makers mark them "15 Amps," while imagining a motor at the far end. A well-meaning person might figure it's OK to use 2 15 A cords in series. Maybe it isn't.
Nick
As long as you use a very heavy duty extension cord that is routed in such a way that it can't overheat or be damaged. Don't run it under carpet or across a walkway.
Ace has a selection of these cords. Check
Steve B.
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