Bryant 234 is a low-pressure, sectional, cast-iron water and steam boiler, certified by AGA for use with natural and propane gases. It is tested for a maximum working pressure of 100 psi on water and 15 psi on steam in accordance with ASME standards for cast-iron boilers. It is factory assembled and available in various types: Gravity, Circulation Pump, Coil Circulation Pump, and Steam. It features a 100% In-line shutoff, thermocouple pilot, 24 Volt Transformer, diaphragm gas valve, gas pressure regulator, and pilot transformer.