Review on 🔥 12V Car Auto Heating Cooling Fan, Dual-Function Ceramic Windshield Defroster Wide Outlet 150W - Portable Cooling Fan Heater by David Urbanski

I have this unit to heat a small battery compartment in my RV so it's not a traditional application. My batteries don't charge below 25f so this little guy keeps that temperature above that for winter camping. The heating performance is good and I would give 5 stars, but the wiring gets too hot in my opinion. I'm going to add a built in 15 amp fuse just to protect this circuit a bit (since I connected it straight from the batteries should it heat up).