Water heater, 40 gal natural gas, power vented

Used 2 seasons to heat water for greenhouse Richmond Power Vent® RHEEM MANUFACTURING CO. MONTGOMERY, ALABAMA SERIAL NO. RMNG 040-050-0418 R- 6.7 Input BTUH 40,000 Cap. U.S. Gals. 40 Gas PRESS. IN. W.C. - Manifold - TYPE GAS - NATURAL Max. Inlet - 14.0 4.0 ANSI 221.10.1 CSA 4.1 - 1998 Min. Inlet - 5.0