The temperature is suppose to drop to the mid 30's Sunday night and I did not want to hear the inefficient rv furnace sounding like a jet plane so I purchased a
"Mr. Heater Buddy" . It has an output of 4,000btu on low and 9,000btu on high. It operates on the small 16.4oz propane bottles and with a larger bottle if you buy the optional hose. The white looking pad glows orange but the camera flash hides it.
A 1500 watt electric heater puts out approximately 5100btu on high as 1watt=3.41btu. As you can see, this little heater puts out almost that on low and nearly twice that on high.
I plan to use the bottles so I can move it where it is needed. I will buy an adapter so I can fill the little bottles from our 30 pound tanks.
Even though this is a short lived cold front, I know this heater will be a nice addition as it uses far less propane than the rv furnace and no amps from our batteries.