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Old 05-17-2015, 09:40 PM   #1
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What Things Use Power in Amps

Today I did a little experimenting. I plugged in my Kill-A-Watt, a device that measures electricity into the main 30A cord going into the trailer. Here's what I learned.
  • 0.30 Amps - Minimum draw with everything off. Mostly the power converter. This load factors into everything measured below.
  • 0.50 Amps - Radio on.
  • 3.10 Amps - Refrigerator on electric.
  • 0.50 Amps - Refrigerator on propane.
  • 11.9 Amps - Water heater on electricity.
  • 0.50 Amps - Water heater on propane.
  • 2.70 Amps - AC (fan only)
  • 14.0 Amps - 15,000 BTU AC on full blast.
  • 17.6 Amps - Momentary peak when AC starts.
Voltage was at 121.4 volts for all tests except when the AC kicked in the voltage dropped to 118 volts.
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Old 05-17-2015, 09:53 PM   #2
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Yup.... Pretty close on our 34' with heat pump loads. Thanks for taking time to do this!!
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Old 05-17-2015, 11:14 PM   #3
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Its always nice to know what's really going on. Thanks for taking the time to share this.
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Old 05-18-2015, 06:15 AM   #4
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Gonna copy that for future reference. Thanks,Jim
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Old 05-18-2015, 11:23 AM   #5
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This is ALWAYS good stuff to know.

Thanx for sharing that.

Tom
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Old 05-18-2015, 11:49 AM   #6
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Watt about your water pump? (electrical pun, please excuse) ...or are you always hooked up to pressurized water?
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Old 05-18-2015, 12:04 PM   #7
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Very good information. Thank you for taking the time to gather this information.
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Old 05-18-2015, 12:38 PM   #8
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I forgot about the water pump, but I'd have to fill the tank and it was getting late. I can check it later.

Part of the reason for doing this is to figure out if the Yamaha EF2400iSHC generator would work for the AC. According to their spec it puts out 16.5 amps continuous. So in theory it would work, but barely, only because the fridge and water heater would also most likely be running (on propane). I'm confident the two Honda's would work, but prefer a simpler solution (if it would work).
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Old 05-18-2015, 01:00 PM   #9
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This thread from ten years ago gives amp consumption for my 1988 Excella: http://www.airforums.com/forums/f37/...ter-15625.html
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Old 05-18-2015, 02:21 PM   #10
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Thanks, really good to know.
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Old 05-18-2015, 02:36 PM   #11
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Thank you! My reply to this thread also serves to bookmark it!
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Old 05-18-2015, 04:09 PM   #12
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I found this a few months ago on Do It Yourself RV --

120 Volt AC RV Appliances And Their Estimated Current Draw
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Old 05-18-2015, 04:19 PM   #13
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Quote:
Originally Posted by kscherzi View Post
I forgot about the water pump, but I'd have to fill the tank and it was getting late. I can check it later.

Part of the reason for doing this is to figure out if the Yamaha EF2400iSHC generator would work for the AC. According to their spec it puts out 16.5 amps continuous. So in theory it would work, but barely, only because the fridge and water heater would also most likely be running (on propane). I'm confident the two Honda's would work, but prefer a simpler solution (if it would work).
I have the Yamaha 2400iSHC generator and it will run the AC. I did not try to run anything else though.
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Old 05-18-2015, 04:31 PM   #14
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Thanks for doing this. I found a simpler solution was to sell the two Honda EU2000's and but a Honda EU3000iHandi. Used it all last summer and worked great.
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