I never liked to have any open flame or red hot cores in our trailer when we was asleep. Always used the oil filled heaters from LOWES/WALMART.. No smell, no noise, and to us probably the safest heater you can run while you sleep.
We have two with us and set them to around a number 3 setting and have one in each end of the trailer. If we need to move some air we would use one of those O2COOL AC/DC/D-CELL 10-inch fans (Walmart-Lowes). They sit perfect behind the oil-filled heater to blow warm air around the trailer
works good for us....
