Same reason you need a dedicated toaster oven for solder reflow. That said, if you are not fortunate enough to have something like a couple scrap bar heaters l

Same reason you need a dedicated toaster oven for solder reflow. That said, if you are not fortunate enough to have something like a couple scrap bar heaters lying around, getting an old electric oven off Craigslist or similar is not a bad alternative.