Heater kicking breakers

[Tbonedog]

I have a space heater for a small garage. The problem I am having is that after about 15 minutes or so, it kicks off my breaker. With nothing else on the circuit, it has done it on two different circuits. Any idea why? The heater is pretty new and seems to be in good shape. It's like this one.

Thanks!

Tbonedog


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[Dpmulvan]

How many amps does it draw? What size breaker is it on? What else is running off the same line?

 

[Tbonedog]

How many amps does it draw? What size breaker is it on? What else is running off the same line?

Nothing else is running. I'll will have to check on the rest. I guess I should have done that first. [emoji16]


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[rlitman]

Tripping after 15 minutes on indicates that the breaker is tripping on thermal.
We'll need to know the wattage of the heater, and both the size AND brand/model breaker it is on.

Do you own a clamp ammeter?

 

[Tbonedog]

This is what I've got on the heater. And the garage outlets are all on 15amp breakers. I'm not sure what brand the breaker is.

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[larry_g]

Have your tried running it on it's lower 1000w setting. A 1500 watt heater on a 15a circuit is pushing the limits.

lg
no neat sig line

 

[Shiftless]

larry has it right. Those heaters draw lots of power and should really have 20 amp supply. If your wiring is 14 ga. you have to run a 15 amp breaker so better limit your heater to the 1000 watt setting. If you are working at your bench and you keep the heater on the floor a few feet away, you will get warm enough.
When I need to heat the whole garage, 20x20, I fire up my propane hot dog heater(with the big door up a foot) 60000 BTU on the HI setting. It only uses a small amount of electricity to run the fan. Can get it up to 80 degrees when it is 40 outside. No insulation in the garage. (Hey...it's CA!)

 

[rlitman]

1440W is the maximum continuous load you should have on a 15A breaker.
Still, it should not be tripping, even at 1800W (but should trip above that).

I would guess that there is a problem with your breaker.