• Limited lifetime warranty on cast iron sections
• Designed for forced hot water heating systems
• 20' Chimney recommended; chimney height may be reduced to 10' in special cases where surrounding conditions permit
• Cast iron sections with elastomer sealing rings
• Combination pressure-temperature gauge
• Temperature & pressure gauge installed
• Jacket is 23-1/4" front-to-back
• 30 psi ASME Relief valve (boiler sections tested for 50 psi working pressure)
• Automatic vent damper
• Stainless steel burners
• Constant burning, thermally-supervised pilot system
• Thermocouple
• Combination relay receptacle and 40VA transformer
• Plug-in circulator relay