magicwiser wrote:Yes, I am using a FlashForge Creator (which has a heated bed but open sides) but it is inside a glass case to hold in the heat. It generally stays closed during the entire process (from preheat to finish) so the heat stays contained pretty nicely.
Without an air heater, it is not a heated chamber...just a chamber that stops bed heat from escaping. Your bed isn't going to produce enough heat to keep the surrounding air warm.
If you want simple, get a heat gun (industrial strength hair dryer). It makes a world of difference.