First: TOO EXPENSIVE though the "Footprint" may make it very attractive.
Many 1500 watt heaters make fantastic claims about effiency and how well they heat but the fact is they all put out EXACTLY the same amount of heat, EXACTLY, all are EXACTLY 100% efficient, can not be anything else in fact.
And in many cases the standard wiring on an RV is not really up to a sustained 12 amp load.. I often smelled "hot wire sent" when we used the standard RV outlet... Since I installed special heater outlets (15/20 amp, this one has a "T" shaped neutral slot) with 12 ga wire, properly BENT AROUND A SCREW and tightened, and one outlet to a circuit breaker for the feed.. No odd aromas.
Very happy.