1991 Groen Gas-Fired Jacketed Kettle-10 Gallon. Model: TDH/40. NB & S/N: 22201. MAWP: 50 psi @ 300 °F, MDMT: 50 °F @ 50 psi. The Groen Model TDH 40 quart has stainless steel construction, self-contained, steam jacketed unit operating from a gas heated steam. Typical applications: browning meats, sauces, vegetables, seafood, soups, rice, pasta, stews, pie fillings, reheating cook-chill & prepared foods. Main burner operation/system includes: thermostat, pressure gauge, gas regulator valve, heating indicator lamp, on/off switch, front mounted water level sight glass: 1-1/4 in dia. Natural gas, input rate: 1.55 hp (boiler) (52000 BTU/hr) with (12) burners. Steam outlet: 17 in. L x 2 in. W. Manifold gas pressure: 3.5 in. W C. Electric requirements: 115 V, 60 Hz, 1 amp, 1 phase. Jacket inlet/outlet: 1 in. threaded female. Overall dimensions: 36 in. L x 28 in. W x 35 in. H.