For years I have wished I could find a truly small and low wattage electric heater. I don't want one that puts out a lot of heat or is loud and I also wanted one that I could run for a short time from the inverter.
Most small electric heaters are 1500 and 750 watts and many are not that "small" physically.
Well, I was walking down the aisle at Walmart yesterday and spotted one of these
It is 5x7x4 inches and is only 250 watts. Best of all, it was $9.98. So, for less than a ten dollar bill I bought one to try. It is ceramic and has only one control: on or off and no thermostat which will work fine for my purposes. I plugged it in and was pleasantly surprised at how quiet it was and the amount of heat it generated. I think it will be perfect for our Roadtrek to take off the chill or even keep it warm if we have shore power when doing fall and spring camping. I have never seen a 250 watt heater before and the price was half what is listed in the Amazon link. I couldn't find this on the Walmart site but I may have just missed it there.