embly IPI NG 4 256-525 Burner Assembly NG c/w Cap HZ40E 911-007 Pilot Assembly IPI LP 256-530 Burner Assembly LP c/w Cap HZ40E 8 256-574E/P Valve Assembly HZ40E NG SIT 5 904-345 Orifice #53 LP 256-576E/P Valve Assembly HZ40E LP SIT 904-593 Orifice a40 NG 9 910-157/P Fan Low Speed (Dual Blower)