If you use the remote glow igniter, hook it up to the glo outlet on the power panel and crank it all the way up. Hand held igniters do not produce the volts needed for two glow plugs in series or parallel.
My on-board system is a micro switch activated by the throttle linkage. Triggers on from idle to 6 clicks of throttle. Battery source is 2 1350 sub-c nicad's in series, voltage when on is 1.65 volts when the batteries are fully charged. Every thing runs through a switch, so the system can be cut off when not needad.

Jim