PTC Car Fan Heater with Power Cord 200W 110V Electric Ceramic Energy Saving Constant Temperature Thermistor Insulation Air Auto Fast Heating Element Tools 60mm, PTCYIDU

Heats up a small area extremely fast. I was using as a tent heater to kick on just in case the tent temp fell to drastic levels making it too cold, or too hard to evacuate colder humid nighttime air. I mounted it to a tin covered piece of wood and secured it into an old crock pots ceramic lining. Placed it on the floor in the corner pointing up underneath a 6" oscillating fan in order to disperse the heat. You could visually watch the temp rise about 30 seconds after it Kicks on. 2.5x4.5x7' tent so for my purposes it worked great. Controlled by 3rd party thermostat controller.

My shop where my 3d printer is located is unheated unless I'm working. This with a pid controller has helped maintain a constant chamber temperature and allowed it to continue printing in ~20 degf temperatures. No complaints.

I bought this heater for a 3D Printer enclosure and it really puts out some heat. Does the job very well for the size.

This small PTC heater does warm up quickly and works for tiny enclosed spaces, but the overall value is limited. At only two hundred watts it cannot handle anything larger than a very small compartment, and there are similar products available for less. It performs as described, but the cost does not match the output.

Great little heater, bought it for starts almost a year ago and it's still going strong. I love that it's low power but still puts out a decent amount of heat.

Simple but works. Works well in heated chamber for 3D printer. I have both 200 and 400watt available. In a cardboard box with a Lulzbot taz 6 the 200w will get the chamber to about 60-65ish degrees C. I have seen the 400w one push chamber temp to 76.5 C. I have a thermocouple placed 2-3 inches from the side of the print head (opposite side of heater) to monitor the temp. These temps are individually done and I don't run both at same time. Probably get over 85C then and start makes the 3D printer parts start sagging.

Purchased this to use as a heating solution for my septic aerator pump enclosure. I wired it in series with an open-on-rise thermostat so it deenergizes at 50°F. Can’t attest for long-term use but right now, this heater is awesome!

I got the 200w version of this heater for my 3d printer, expecting it to be 42mm deep, as the listing shows. It is >50mm deep, and it didn't fit for my needs at all. It did seem to heat just fine, but that's the main positive thing I have to say about this PTC heater.