Hot Surface IgnitorLoch-Heat TileLoch-Heat TileSight GlassLoch-Heat TileLoch-Heat TileMain BurnerOrificeLoch-Heat TileLoch-Heat TileSwitchThermistorPotentiometerTerminal StripHi LimitThermostatManual Reset High LimitGas CockOption Box A: Louver Relay w/Pump DelayOption Box B: MR-LWCOOption Box C: MR-LWCOLightLightPump Delay RelayPump Delay Wire Harness Go Back Detailed View Detailed View Termostat Fan Hot Surface Ignitor Sight Glass Loch-Heat Tile Loch-Heat Tile Loch-Heat Tile Loch-Heat Tile Loch-Heat Tile Loch-Heat Tile Main Burner Orifice Switch Fan