1 PCS Room Heater 12V/24V 70W/120W/150W/300W Energy Saving PTC Car Fan Air Heater Constant Temperature Heating Heaters 24V 300W (24V 300W)

It produces a very good amount of heat, but does draw a fair amount of juice , I ran it off a power bank but it should be ran from a reliable source of energy i.e, solar power.

24 Volt 300 watt version tested at 12 volts slowly get hot and draws more current, about 45 watts as it got hot, fan runs well. Testing with 26.5 volt LiFePo4 battery, it starts at 7 amps and as it heats up drew more than 12 amps exceeding 400 watts which made the wires to the heater block get too hot in just a few minutes. Nothing melted yet but this needs some power control to operate safely. It does make a good amount of heat and has low fan noise, further testing needed.

I was totally surprised on how well this worked… At first we were all concerned that something that small would not generate enough heat… That concern quickly turn to ensuring that this thing, why is it going to melt down everything around it… We’ve had it working pretty much nonstop with zero issues…

Ordered in August of 2024, the heating element burned out in August of 2025 with infrequent use (Used to heat 3d printer enclosure about once or twice a week for a few hours at a time). Would not recommend if you want a heater that lasts even a year with limited use.

This little heater works very wellI tested my 24V unit for one hour it made [email protected] (9.4A) with no issues.

Purchased as an experiment. Have it currently in my vehicle, as extra heat. Plan to use it mainly for defrosting the windshield prior to using vehicle.

It heats up quickly. No problems with the heating element or fan. Just what I needed.

It puts out ok heat, but be warned, it gets so hot you can't touch it! I'm surprised it's not melting the plastic housing.