2003 Crown Natural Gas Boiler. Model: AWI162SNSTIPSU, S/N: CROW32000320976, Series: 9/12/2003. Input: 162,000 Btu/hr; Output: 132,000 Btu/hr, 4 hp Max gas supply pressure: 14 (in w.c.), Min gas supply pressure: 5 (in w.c.), Manifold pressure: 3.5 (in w.c.), Electrical requirements: 120 V, 60 Hz, < 12 amps. Max water temp: 250 F. Min relief valve capacity: 132 lb/hr, (1) 1 1/2 in. dia relief valve, (1) 1 1/2 in. dia gas valve. Overall dimensions: 29 in. L x 26 in. W x 40 in. H. (ACN30a).