Forum Discussion
RoyB
Feb 21, 2015Explorer II
I never run my two heaters at max... Like said above that almost uses up all of the available power I have. My electric heaters are just to add alittle more heat in certain cooler areas of the trailer.
I also never set my electric higher than maybe a #3 setting out of a possible 10 setting.
I find where the heater will turn ON and OFF automatically with the thermostat settings. The ideal setting might be on ON lets say 5 minutes and then be OFF for 10-15 minutes... I try to find that point using the different thermostat setting.
If the heater stays ON continuously then it isn't enough heat to do you much good...
The electrical layout is not designed to run those 12.5 AMP electric heaters on a continuous ON thermostat mode...
When camping at campgrounds with electric pedestals this is why I always plug my electric heaters into a separate extension cord and plug-in the Campground 20AMP service. Then it doesn't draw from the 30AMP service...
I also like to feel the connections everytime I am arou8nd then when running alot of high wattage items inside the camper. If the connections start getting more than HAND WARM I know something is not going right and will burn out the connections pretty soon...
These are the things we do when using high wattage items for long extended times.
You can look at the campground 30A pedestal connections and can spot a bad connection pretty easy. It will have black marks on the panel and corroded appearance on the blade connection. This will most definitely end up burning up your clean 30A cable connection...

Photo from GOOGLE IMAGES
Just what I do and look for when camping
Roy Ken
I also never set my electric higher than maybe a #3 setting out of a possible 10 setting.
I find where the heater will turn ON and OFF automatically with the thermostat settings. The ideal setting might be on ON lets say 5 minutes and then be OFF for 10-15 minutes... I try to find that point using the different thermostat setting.
If the heater stays ON continuously then it isn't enough heat to do you much good...
The electrical layout is not designed to run those 12.5 AMP electric heaters on a continuous ON thermostat mode...
When camping at campgrounds with electric pedestals this is why I always plug my electric heaters into a separate extension cord and plug-in the Campground 20AMP service. Then it doesn't draw from the 30AMP service...
I also like to feel the connections everytime I am arou8nd then when running alot of high wattage items inside the camper. If the connections start getting more than HAND WARM I know something is not going right and will burn out the connections pretty soon...
These are the things we do when using high wattage items for long extended times.
You can look at the campground 30A pedestal connections and can spot a bad connection pretty easy. It will have black marks on the panel and corroded appearance on the blade connection. This will most definitely end up burning up your clean 30A cable connection...

Photo from GOOGLE IMAGES
Just what I do and look for when camping
Roy Ken
About Motorhome Group
38,726 PostsLatest Activity: Jun 21, 2025