• Cast iron sections and push nipples, heat exchanger is constructed of heavy-duty cast iron sections and sealed with cast iron push nipples
• Integral draft diverter is built-into the boiler and protects against harmful back drafts to ensure safe operation, exhaust pipe can be installed directly from the top of the boiler enabling safe installation in sites with low ceiling height
• Steam chest and supply tappings incorporates a 6" steam chest which allows the boiler to generate ample amounts of steam, 2-1/2" supply tappings provide easy access for steam to enter your distribution system and heat your home quickly
• Safety controls - low water cut-off, pressuretrol and 15 lb pop safety valve are standard and ensure safe, reliable operation
• Test fired every 16 series boiler is test fired at our factory prior to shipping to ensure safe, reliable operation
• Assembled boiler with insulated jacket
• Integral draft diverter - built into jacket
• 24 volt, 40 VA transformer
• Pressure limit control
• Electronic probe type low water cut off
• Flame rollout safety shut-off fuse link and blocked vent safety shut-off switch
• Glass water level gauge
• Steam pressure gauge
• (2) 2-1/2" square head pipe plugs - to plug unused supply and return tappings
• Electronic ignition with vent damper
• Complete installation instructions
• Completely installed and wired gas control systems with burners and manifold, consisting of titanium burners, automatic redundant combination gas valve, 24 volt, with pilot filter
• Intermittent Pilot Control, continuous re-try, 100% shut-off, combination pilot/burner/electrode/flame sensor

Granby CB4-PK-0118-01