PTC Fan Heater 110V 400W Electric Ceramic Heating Element Energy Saving Constant Temperature Thermistor Insulation Air Heater Fast Heating with Power Cord, PTCYIDU

Bought this for my 3D printer enclosure to help with printing engineering filaments like ASA. This works like a charm! Puts out a decent amount of heat, especially for its compact size. Great value for the money here! Air flow won't blow anyone away, but you don't really want a TON of airflow for a heater like this - just enough for circ. Looks like it's well engineered, too.

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.

PTC Fan Heater with Power Cord 110V 400W Electric Ceramic Heating Element Energy SavingThis is a great little product. We have integrated into our electronics containers and they have worked great. Very simple construction and priced very well. Have used for one field deployment so far and all 8 units were fine.Combined with "bayite Temperature Controller 1650W 15A BTC211 Dual Digital Outlet Thermostat Plug," also available on Amazon.

Been using it for a few months now for starting seedlings and it works well when used in tandem with a temperature control probe. Heat output persists in its intensity and ability to reach high temps quickly, build quality remains intact so far.

So far so good, I needed a small heater to control the temperature in a 3sq ft control box outside and it is performing well in 15-30 degree outside temps and has no problem maintaining 45degrees on a thermostat.

Heats up and old fridge by itself real quick. Use it for keeping my 3d filament warm and dry.

Works great very hot

I'm a bit torn on this review - this unit as it is delivered does not work as expected, but the components do. As shipped, the fan is mounted too close to the heating element. This causes the fan to overheat during operation and shutdown, leaving the heating element toasting away. This happened with my unit twice - both times at about the 45 minutes of runtime mark. At first I thought this was caused by the fans being inappropriately rated (which you could argue is still the case). But I noticed (in the scant documentation that arrived with the unit) that the fan is specified as needing to be mounted greater than 10mm from the surface of the heating block. As delivered the fan is mounted flush against the heater block. I 3D printed a standoff for the fan to space it 20mm from the heater block and my units have functioned flawlessly since.I also feel it's worth noting that these units do not have any form of self-regulated thermal shutdown (no thermal fuse or switch). I modified my units to include a 125C thermal fuse and when the fan failed, the fuse did its job and shutdown the heater. I plan to use 125C thermal switches on future units.