I am looking at buying 4 Red Hat 8210B021 ( http://www.grainger.com/Grainger/RED-HAT-Solenoid-Valve-3UK19?Pid=search ) Solenoid valves to control all 3 burners as well as one for a safety shutoff I am planning on running a standing pilot light system and using 4 of the 4" cast Iron burners in my...