The Eclipse HeatPak integrates a valve train and control box to provide a burner system that meets NFPA requirements. The system includes a double valve with gas pressure switches, a Veri-Flame(r) modulating flame monitor and an ignition transformer. The HeatPak can be used on burners with 0.5 to 2 in. piping up to 6 MMBtu/h inputs and offers two standard selections. One option includes a choice of scanner or flame rod. Another option in-cludes a choice of proof of position using either switches on the burner or auxiliary contacts incorporated within the Eclipse ACT004 rotary actuator.