I had a old furnace outer shell before but it vanished, I think in one of the storms a while back it must have blown out near the street.Love the wind break great idea will have to find one
This new one is the tub from my old dishwasher. Works well.
you should use a wind block it contains a lot of heat.
It will shorten the tine to melt and makes a good shelf to pre warm your ignot molds.