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Question DetailsAsked on 1/2/2015

can i use a 100 foot 12 gauge 15 amp extension cord on a 1500 watt heater

100 foot extension cord on 1500 watt heater

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2 Answers

1
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I would want a 10 gauge, and I'd still be to concerned to use it.

Source: www.bayareacool.com

Answered 4 years ago by BayAreaAC

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BayAreaAC is on the mark as usual - the short-term surge load rating of a 12 ga wire 100 feet long is 15A - what it says on the cord. However, for long-term load, which a heater certainly is, it is limited to not more than 12A at 100 feet - and probably less in a thick-insulation extension cord. 10 gauge wire is rates for 16A - still just marginally above the sustained load you are considering, which is why he (and I) would be looking at an industrial 8 ga extension cord if you have to run that far.


Actually, I seem to recall any extension cord at all is illegal on electric portable heaters, but I am too plumb tired right now to find that obscure code provision.


Remember, assuming you are using this to heat something over a prolonged period, that is it probably going to be unattended for at least come periods of time during the use, so you don't want to risk starting a fire. If you can use a shorter cord or maybe a 1000W heater, I would do so. If not, at least plug it into a GFCI or AFCI protected outlet.


And of course if the circuit it is plugged into a 15A circuit, make sure that is the only thing active on that circuit, because with an extension cord on a 1500W heater you are really pushing a 15A circuit and counting on it not having any questionable parts along its run.

Answered 4 years ago by LCD




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