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View Full Version : Changing over burners from nu-way to giersch g 20

joem2835
Dec 27, 2007, 03:07 PM
Having changed burners ,how do I match up the four wires (not colour coded ) from the old thermorossi RT22 boiler to the new GIERSCH G20? Any ideas?
JOE
hvac1000
Dec 27, 2007, 04:02 PM
You must not be in the USA. I suggest calling the manufacturer.