Looking for a small portable propane heater for my Hawk. I don't want to go through the trouble/expense of mounting a permeant vented unit since we rarely would use it. Doesn't get super cold here in Texas but sometimes I find us out in the high 20s-low 30s. Don't need to heat the camper much but would like a unit that would keep the inside at 50-60 degrees. Curious to what others are using and the cons to what you have. Biggest problem for most units(besides condensation issues) that I've looked at is the specs for distancing for the cabinets and ceiling. i would like to set the unit on top of the stove top as its metal but that doesn't leave enough clearance to the vinyl ceiling material. Cant leave on the camper floor because of my dog or the distance to the side off the rollover couch. Any suggestions? Anyone used the Martin brand heaters?