Electric furnace cost
That furnace electronic price aint justifie. Moderne electric furnace are only (for most of it) one simple planel to reduc or augment temperature and one thermometer in concret/metal box so why the number of electronic your furnace make me thing the door open and close automatic and it can't also make you coffe? In fact i say that cause it's alot of frustration to build all that thing only to make composite... The processor is understandable but the furnace is frustrating it just look like fake difficulty game make.
also I really enjoy the 5 extra spot you put in pod thanks for that.