Hi bodtx, Welcome to EasyEDA. Please do not waste peoples time asking about your project until you have put a great deal more effort into understanding - and being able to clearly describe to others - what you are trying to achieve and how you are attempting to do it. I'm sorry if that sounds harsh but please consider the following points: * There is no documentation describing the design requirements and no documentation describing how the circuit is intended to work. * Your schematic is incomplete and unreadable. * It has no mains input connector, * One side of the mains input to the AC to DC converter is unconnected. * Where are the connections to the heater? * How is it switched on and off? * What load (power/voltage/current) is the heater? * Have you done any calculations on the trace width needed to carry whatever the currents are that may be flowing through them in this circuit? * Have you given any thought to the electrical safety of this circuit? It has mains voltage going in and there is not even a fuse in series with the mains input. * What clearances do you need between the traces to comply with safety requirements at mains voltages? * You should put a label into the silkscreen to warn of the presence of mains voltages. Please see: [https://easyeda\.com/andyfierman/Welcome\_to\_EasyEDA\-31e1288f882e49e582699b8eb7fe9b1f](https://easyeda.com/andyfierman/Welcome_to_EasyEDA-31e1288f882e49e582699b8eb7fe9b1f)