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Old 01-05-2009, 12:35 AM   #1
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Location: Seal Beach, Ca.
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Space Heater

I just bought a space heater from Costco that uses 1500 watts and keeps tripping the circuit breaker. I'm wondering if anyone has found using a lesser watt heater beneficial.

Costco also has a Presto HeatDish Parabolic Electric Space Heater Plus Footlight that uses 1000 watts. I picked the other one because it oscillates and would heat the entire room. The Presto is more directional.

Please advise if you have had this problem and what worked for you.
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Old 01-05-2009, 07:38 AM   #2
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The 1500 Watt heater draws at least 12.5 to 13.5 amps. The circuit you are using is rated at 15 amps. So if anything else is on that circuit such as a TV, Microwave, coffee maker, etc it's going to trip the breaker. Have you given any thought of having electric strip heaters installed in the AC units on the roof? Those breakers are rated to handle the addition of the heater strips.
The 1000 watt is going to be a better heater to use from an electrcial standpoint. If you use the Oil filled radiator type there are usually a 600 watt and a 900 watt button to choose one or the other or both. At 900 watts the heater will heat a decent area and it will cycle off and the oil still allows heat into the area. Downside is they do take up more space and need to cool down before you can handle them for storage.

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Old 01-05-2009, 09:15 PM   #3
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I use the parabolic heaters from Costco. I have 3 and used one in the back of the toyhauler last week when temps were around -25 c and it actually heated up the whole back half of the trailer great. I used the plug in for the water heater if I have need to run a second heater which I only did once when it was -35 c . The water heater or micro is usally on its own breaker.
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Old 01-06-2009, 08:54 AM   #4
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Location: Louisville, KY
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In my RV and my basement workshop and my basement computer room I have
3 heaters. Two of the Three have dual heat settings.
Typically, they are 1400 to 1500 watts on high and half that on low.
If your heater has only one setting, I suggest returning it and going to
any discount store such as Wal-Mart and getting a heater with dual heat
ranges. We're talking 20-30 bucks.
I have to shut off my heater when the coffee is perking but I can
turn the heater on low range after the pot completes it's cycle.
All 3 of my trailers had only one 15 amp circuit for outlets.
You quickly learn to "deligate" power usage.
We can toast bread but not at the same time as making coffee or running the
heater on high.
If it was a real problem for me I'd add another outlet and circuit breaker.
I know my power cord is rated 30 amps and I'm not going to be using my
roof AC when I'm needing the heater so I'm not going to overload the total system.

As far as using the roof AC with strip heaters, mine is noisy and we prefer
the much quieter sounds of a portable heater with it's tiny fan.
My 2Ę
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Old 01-07-2009, 10:42 AM   #5
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Are you using the Presto heater?
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Old 01-07-2009, 02:31 PM   #6
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For those of you who are using space heaters, it is not good Idea to use an extension cord with them and if you have to then use a 12 gage rated extension other wise if you use a 14 gage the extension cord can over heat and cause a fire.
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