Flagstaff Shamrock what to look for

Got to use it this weekend. Everything worked perfectly. Used a couple ceramic heaters on both ends(both on low or the circuit breaker would trip). Kept things sufficiently 'warm' even though it was in the low to mid 20s at night. Everyone that checked it out said it looked brand new. It really did good. Still not convinced tent ends are 'our thing' but it was fun.
Anyone know if there are any outlets on a different breaker? I tried a few but the same one would trip if both heaters were on high. Oh and the mattress heaters did not work and reading about them that doesn't sound like much of a surprise.