I'm working on an old coal to NG conversion gravity furnace with the v155 motorized control valve. I read in another thread that the valve can be replaced with a Honeywell VR8300. Is this an acceptable retrofit? What all does this modification entail? What other parts are needed? Is there an adapter to go from the new combo valve to the existing 2-ear flange going into the burner port? I have in hand a new VR8300A, new pilot tubing kit and new 36" 30mv thermocouple.
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