Forum Discussion
LennyH
Feb 11, 2014Explorer
pianotuna wrote:
Hi,
A 50 amp service allows 6000 watts on each leg--so in theory you could run a total of 8 1500 watt heaters. Of course, that is over kill. It would also require you to know what leg each outlet in the RV is on. (which is no bad thing to know.) It is best practise to not use more than 80% of the available wattage on a continuous basis so the 6000 watts per leg drops down to 4800 watts, or about 3 heaters per leg.
Those of us with 30 amps often add auxiliary shore power cord(s). At the moment I'm using 4000 watts divided between the oem 30 amp, a secondary 20 amp, and a third 15 amp shore power cords. I have them plugged into my 50 amp break out box.BillyandKris wrote:
Our next camper will be 50 amp and I THINK you can run two electric heaters at once with that. Maybe someone can shed light on that subject for us???
The easiest way to calculated how many amps a unit, or any unit takes is:
FOR EVER 100 WATS = 1 AMP at 110/120 volts,
Therefore a 1500 watt heater takes
1500 watts Divided by 100 watts = 15 or 15 Amps.:h
LennyH
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