Teledyne Laars Heating Systems Hot Water Boiler - 7.5 HP. Model: VW 0250C N01C1. S/N: 9091142. Nat'l Bd: 123090. Type: natural gas. Input rate: 250,000 BTU/hr. Flow Rate (normal water): 34 gpm. Indoor capacity: 202500 BTU/hr. Outdoor capacity: 195000 BTU/hr. Total heat surface area: 21.2 sq. ft. Maximum orifice size: 43 DMS. Maximum gas supply pressure: 10 in. W.C. Minimum gas supply pressure for input adjustment: 5.7 in. W.C. Normal manifold pressure: 4 in. W.C. Power supply: 115 V. MAWP: 160 psi. Burner Manufacturer: Laars Heating Systems. Inlet: (1) 2 in. dia. NPT fittings (water), (1) 1 in. dia. NPT fittings (gas). Outlet: (1) 2 in. dia. NPT fittings (water). Overall dimensions: 3 ft. L x 2 ft. 4 in. W x 3 ft. 5 in. H. (ACN30). (GG).