Review on High-performance Fdit PTC Car Fan Air 🔥 Heater (12V 100W) - Ideal for Compact Room Spaces by Kendra Barnes

Works for what I needed it for. It's not much heat but I needed something to keep my water pump in my RV from freezing, 12 volts and 10 amps max (my pump is mounted outside the RV in a bay). Fold about 3'x2'x2' and does the trick. I even installed a thermostat. The cost is about $60.00 when all is complete and a little work is done, but I'm happy with it. In the morning it was 14 degrees outside and in 100 minutes it got warmer to 34 degrees. If it stayed on it would stay slightly above zero and I suspect it would climb to around 50 degrees. Bought two and made a spare when needed in a box with no thermostat. Just add a cigarette lighter and a socket to each to include them in a box that connects directly to the batteries. Much luck