On Wed, Dec 9, 2009 at 8:22 PM, Carl Denk wrote: > Rent or borrow a generator. Many portable welders have power outlets > also. Though I would be very reluctant to power it up without some > assurance as to what is the needed power. Out of my expertise, but would > seem would be able to measure the resistance of the heaters (assuming > it's straight resistance heaters), calculate the amperage at different > voltages, and compare wire size allowable amps. If there are no > electronics, might be safe to power at 120 volts first. Check for local > electrical repair, they might with a quick inspection determine what is > appropriate for say a minimum service call charge. >> Not sure where else I can find 220V to test this. Uhm, this may not be proper but couldn't one connect a linecord to one outlet on one phase and another linecord to another outlet on the other phase? Black <-> black voltage should be 208 or so. Will be 0 if on the same phase. I guarantee it doesn't meet electrical code. May not be a wise idea. May work for testing. Consequences of doing aforesaid wiring are undetermined. Use your own judgment at own risk. Seek professional electrician. YMMV. >> >> Cheers, >> -Neil. >> Andrew Kelley -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist