• Durable design with low maintenance and factory tested
• Unique 7 pass heat exchanger design maximizes heat transfer
• Insulated extended steel jacket
• Cast iron sections with built-in air separator
• Condensing stainless steel secondary heat exchanger with air separator
• Steel base, control module with indicator lights, blower assembly with observation port
• Gas/air manifold assembly, gas/air orifice plate for natural gas and separate plate furnished for conversion to propane
• Stainless steel burner cone and ring assembly, negative regulation gas valve, hot surface ignition system, air pressure switch
• Taco 007 system circulator
• Built-in bypass circulator system with sensor for temperature control, condensate drain trap, sidewall vent termination kit, 40 VA transformer, electrical junction box
• 30 psi ASME relief valve boiler sections and secondary heat exchanger tested for 50 psi working pressure
• Water temperature limit switch, section block temperature limit switch, combination pressure and temperature gauge, drain valve, flue thermal fuse
• 1/2" gas connection
• 3-section
• 1" minimum pipe size

Weil-Mclain GV90-4

• Designed to operate in low temperature condensing applications
• Outdoor reset and domestic hot water priority
• Modulates with 5:1 turn-down ratio
• High grade stainless steel burner features quiet operation
• U-Control gives the power for easy set-up and maintenance, multiple set-up and zone options, system sensing recognizes system and outdoor temperatures, temperature management for up to three different set-points, control multiple boilers from a single control panel, standard screen messages provide service alerts and maintenance reminders
• 30 psi ASME relief valve
• Drain valve
• Stainless steel burner (80, 105) with woven steel fiber mesh (155, 230, 299 and 399)
• Variable speed blower assembly, Venturi mixing system with air silencer, negative pressure regulated gas valve, 50 VA transformer
• Dual scale temperature and pressure gauge, outlet water temperature sensor, inlet water temperature sensor, flue gas temperature sensor, outdoor temperature sensor
• System water temperature sensors, fully removable jacket front, adjustable boiler legs, on/off power switch, condensate trap with drain tee assembly, propane conversion orifice (all except model 80), water treatment - inhibitor and test kit
• Control module - 3.5" LCD display, 3-boiler priorities with multiple preset system configurations, color-coded removable terminal blocks, multiple boiler functionality, alarm control functionality, ignition control, high limit and modulating temperature control, low water protection, outdoor reset, ability to control any combination of 3 circulators
• PVC/CPVC/PP vent material
• 1-1/2" minimum recommended pipe size
• 1-1/4 and 1-1/2" flanges (299) taco 0014 boiler circulators

Weil-Mclain ULTRA299S4

• Designed to operate in low temperature condensing applications
• Outdoor reset and domestic hot water priority
• Modulates with 5:1 turn-down ratio
• High grade stainless steel burner features quiet operation
• U-Control gives the power for easy set-up and maintenance, multiple set-up and zone options, system sensing recognizes system and outdoor temperatures, temperature management for up to three different set-points, control multiple boilers from a single control panel, standard screen messages provide service alerts and maintenance reminders
• 30 psi ASME relief valve
• Drain valve
• Stainless steel burner (80, 105) with woven steel fiber mesh (155, 230, 299 and 399)
• Variable speed blower assembly, Venturi mixing system with air silencer, negative pressure regulated gas valve, 50 VA transformer
• Dual scale temperature and pressure gauge, outlet water temperature sensor, inlet water temperature sensor, flue gas temperature sensor, outdoor temperature sensor
• System water temperature sensors, fully removable jacket front, adjustable boiler legs, on/off power switch, condensate trap with drain tee assembly, propane conversion orifice (all except model 80), water treatment - inhibitor and test kit
• Control module - 3.5" LCD display, 3-boiler priorities with multiple preset system configurations, color-coded removable terminal blocks, multiple boiler functionality, alarm control functionality, ignition control, high limit and modulating temperature control, low water protection, outdoor reset, ability to control any combination of 3 circulators
• PVC/CPVC/PP vent material
• 1-1/4" minimum recommended pipe size
• 1 and 1-1/4" flanges (155 and 230) taco 0014 boiler circulators

Weil-Mclain ULTRA230S4

Weil-Mclain CGA6PIDNS3

• Designed to operate in low temperature condensing applications
• Outdoor reset and domestic hot water priority
• Modulates with 5:1 turn-down ratio
• High grade stainless steel burner features quiet operation
• U-Control gives the power for easy set-up and maintenance, multiple set-up and zone options, system sensing recognizes system and outdoor temperatures, temperature management for up to three different set-points, control multiple boilers from a single control panel, standard screen messages provide service alerts and maintenance reminders
• 30 psi ASME relief valve
• Drain valve
• Stainless steel burner (80, 105) with woven steel fiber mesh (155, 230, 299 and 399)
• Variable speed blower assembly, Venturi mixing system with air silencer, negative pressure regulated gas valve, 50 VA transformer
• Dual scale temperature and pressure gauge, outlet water temperature sensor, inlet water temperature sensor, flue gas temperature sensor, outdoor temperature sensor
• System water temperature sensors, fully removable jacket front, adjustable boiler legs, on/off power switch, condensate trap with drain tee assembly, propane conversion orifice (all except model 80), water treatment - inhibitor and test kit
• Control module - 3.5" LCD display, 3-boiler priorities with multiple preset system configurations, color-coded removable terminal blocks, multiple boiler functionality, alarm control functionality, ignition control, high limit and modulating temperature control, low water protection, outdoor reset, ability to control any combination of 3 circulators
• PVC/CPVC/PP vent material
• 1-1/4" minimum recommended pipe size
• 1 and 1-1/4" flanges (155 and 230) taco 0014 boiler circulators

Weil-Mclain ULTRA155S4

Weil-Mclain CGA4PIDNS3

• Cast iron sections factory tested and assembled
• Boiler reset control with low water cut-off for increased efficiency and safety
• Pre-assembled wiring harness
• Deluxe insulated enameled steel jacket reduces boiler heat loss
• Blocked vent shut-off switch, flame roll-out shut-off switch, drain valve
• Skim tapping for cleaning steam boilers
• Steel push nipples
• Slide-in, pre-assembled burner tray
• Temperature and pressure gauge (unmounted)
• Gauge glass
• 1 year warranty all residential and commercial cast iron boilers
• Knockdown

Peerless Boiler 63-05-SPRK-S-N

• Cast iron sections factory tested and assembled
• Boiler reset control with low water cut-off for increased efficiency and safety
• Pre-assembled wiring harness
• Deluxe insulated enameled steel jacket reduces boiler heat loss
• Blocked vent shut-off switch, flame roll-out shut-off switch, drain valve
• Standing pilot
• Skim tapping for cleaning steam boilers
• Steel push nipples
• Slide-in, pre-assembled burner tray
• Temperature and pressure gauge (unmounted)
• Gauge glass
• 1 year warranty all residential and commercial cast iron boilers

Peerless Boiler 63-04-SPRK-SP-N

• Assembled boiler with insulated jacket
• Combination high limit control and circulator relay
• 24 volt transformer to power gas control system
• Flame roll-out safety shut-off fuse link (roll-out switch) with spare fuse link included
• Pressure switch for proving air flow
• Combination pressure temperature gauge
• 1-1/4" Taco/Grundfos circulator pump with isolation (ball) valves shipped separately for field mounting
• 30 lb ASME relief valve
• Completely installed and wired gas control system with burners and manifold, consisting of titanium composite burners, automatic redundant combination gas valve 24 volt with pilot filter, pressure regulator, intermittent pilot control, continuous re-try, 100% shut-off for natural and propane gas, combination pilot/burner/electrode/flame sensor, complete installation instructions
• Induced draft fan allows flue gases to be pulled through the boiler and safely exhausted
• Baked enamel steel jacket
• Electronic pilot ignition automatically lights the pilot only when needed, eliminating fuel waste
• 20 years limited heat exchanger warranty

ECR International XEB515003140303

• Assembled boiler with insulated jacket
• Combination high limit control and circulator relay
• 24 volt transformer to power gas control system
• Flame roll-out safety shut-off fuse link (roll-out switch) with spare fuse link included
• Pressure switch for proving air flow
• Combination pressure temperature gauge
• 1-1/4" Taco/Grundfos circulator pump with isolation (ball) valves shipped separately for field mounting
• 30 lb ASME relief valve
• Completely installed and wired gas control system with burners and manifold, consisting of titanium composite burners, automatic redundant combination gas valve 24 volt with pilot filter, pressure regulator, intermittent pilot control, continuous re-try, 100% shut-off for natural and propane gas, combination pilot/burner/electrode/flame sensor, complete installation instructions
• Induced draft fan allows flue gases to be pulled through the boiler and safely exhausted
• Baked enamel steel jacket
• Electronic pilot ignition automatically lights the pilot only when needed, eliminating fuel waste
• 20 years limited heat exchanger warranty,
  ,
  

  ECR International XEB307503140303

• Dependable cast iron heat exchanger with cast iron push nipples
• The sections and push nipples expand at the same rate when heated
• By using similar materials instead of less expensive gaskets, the boiler maintains a water tight seal over time
• LWCO (probe type), pressure high limit control, pressure gauge and glass water level gauge
• Completely installed and wired gas control system consist - titanium composite burners, gas manifold with orifices, automatic redundant combination gas valve, 24 volt with pilot filter and regulator, intermittent pilot control, continuous retry 100% shut-off, combination pilot burner/electrode/flame sensor and integral draft diverter
• Atmospheric chimney vent boiler with integral draft hood and vent damper
• Low profile compact design makes it ideal for low clearance installations
• Brass/copper pig tail siphon for long life
• 24 volt transformer
• Flame roll-out safety shut-off fuse link and blocked vent safety shut-off, manual reset disc thermostat (spill switch) with spare fuse link included
• Assembled boiler with insulated jacket, 3/4" boiler drain valve, 15 psi ASME pop safety valve, (2) 2-1/2" supply tappings and (2) 2-1/2" return tappings (2) 2-1/2" square head pipe plugs - to plug unused supply and return tappings
• 12 years cast to last limited warranty

Dunkirk PSB-6D