I'm only melting zinc because I have a lot of it, and im trying out the burner. The spider is an ornamental item but later I will cast more interesting pieces in all other types of metal. I am experimenting with different nozzels and jets for complete combustion of fuel and air.
Thankyou for your comments. I'd like to add that we didnt use propane, we will in future attempt to melt iron which we have achieved already with solid fuel using blacksmiths nuggets in our small foundry.