One item that I believe is necessary to try to maintain comfort while boondocking without AC is an efficient fan that moves a lot of air. I considered the Endless Breeze 12v
fan, but I did not have time to order it and ended up going to Lowes to see what they had. They did not have much in 12v
, but I found a good and very efficient 14" 3 speed fan (by Utilitech) that even has an ocillation feature over about 20 degrees. On high speed the specs indicate 50 watts on high. My old 14" fan (Patton), for comparison uses 150 watts on high. I ran both of them using my 400watt inverter and the Utilitch used 60 watts while the Patton used 120 watts. So the new fan only used 1/2 the power of the old fan plus has the ocillation feature. It also moves a lot of air and is reasonably quiet. My logic is that this will keep us reasonable cool while we are sitting under the awning in the shade (plus keep the bugs away) or while sleeping at night. Oh, and the price was very reasonable ($55) and it appears to be well made. Photos of both fans are shown below. The item # is 0015531 and the model # is HV-14S180.
I used a 400 watt inverter, but I also tried a 100 watt inverter and the Utilitech fan started and ran fine on all 3 speeds.
My next test was to see how much battery power I used to run this fan for 24 hours. The initial voltage was 13.13 volts for my two golf cart batteries. After 24 hours of operating the fan on high, the voltage was down to 12.4 volts. Using my voltage table this is still only down to a charge state of about 75%.