Instructables user bwang writes:
This Instructable will walk you through the construction of a high-power (30kVA) heater, suitable for melting aluminum and steel. Note that to take full advantage of this design, you will need a 220V outlet, at least a 50A single-phase one and preferably a 50A or 60A 3-phase outlet.
Obviously, one should read, understand, and be comfortable with the safety procedures before attempting something like this, but what an awesome tool to have. ย Using scavenged materials, he estimates the build cost $200. It’s an entry in Instructables ongoing EXTREME! Challenge.
ADVERTISEMENT
