HOW TO MAKE A STRONG METAL FOUNDRY

[mariost]

how long does it take to preheat this foundry until it's ready to melt the aluminum?
I saw similar designs based on the electric heater, and it took 1 hour to heat it up!

I hope the gas based foundry cuts the preheating time to few minutes.

Depends of the dimention of the object. If for example we have tins you need about 5-7 to begin to melt. Then you put inside more tins that are melting almost immediately.If the object is more thick you need more time for the melting to begin.