Brand Name
Type
BTU Input
BTU Output
AFUE
Voltage
Fuel Type
|◀ 1 - 12 of 105 ▶|
View:
Williamson -Thermoflo OSB-5-P-S3 Oil Fired Cast Iron Steam Boiler 85 AFUE 174k BTU
,

Williamson -Thermoflo OSB-5-P-S3

Item#:
OSB-5-P-S3
Manufacturer Item:
OSB-5-P-S3
Manufacturer:
WILLIAMSON -THERMOFLO
Williamson-Thermoflo OSB-3-P-S2-W Cast Iron Residential Oil Fired Steam Boiler, Net AHRI Ratings: Steam (Sq. Ft.) 450, Net AHRI Ratings: Steam (MBH) 108, AFUE 84% Less Coil/Less Burner
  • Factory tested
  • Easy service
  • Factory-assembled cast iron section with built-in air separator assembly, including aluminized steel flue collector, swing-away burner mounting door, with refractory blanket and recessed target wall in combustion chamber
  • Low draft loss
  • Top access cleanout cover
  • Plug-in wiring harness
  • High efficiency flame-retention oil burner
  • Flame retention head design
  • Solenoid valve
  • PSC motor
  • Solid state igniter
  • Rear flue outlet
  • Insulated heavy gauge steel jacket
  • High limit control with circulator relay
  • 15 psig ASME relief valve
  • Drain valve
  • Barometric damper
  • Siphon
  • Gauge glass and guard assembly
  • Pressure gauge
  • Probe low water cut-off
  • 7" flue connection size
  • Limited lifetime warranty on heat exchanger, 3 year limited warranty on parts
,

williamson -thermoflo osb-4-p-s3

Item#:
OSB-4-P-S3
Manufacturer Item:
OSB-4-P-S3
Manufacturer:
WILLIAMSON -THERMOFLO
Weil-McLain Ultra UG-399 Cast Aluminum High-Efficiency Condensing Natural/LP Gas Fired Water Boiler, 91.7% AFUE, 80K BTU Input, 62K BTU Ouptput
  • 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 (399) taco 0013 boiler circulators
,

ULTRA80NS4

,

ULTRA80NS4

Item#:
ULTRA80NS4
Manufacturer Item:
383-500-732
Manufacturer:
WEIL-MCLAIN
Weil-McLain Ultra UG-399 Cast Aluminum High-Efficiency Condensing Natural/LP Gas Fired Water Boiler, 91.7% AFUE, 80 - 399K BTU Input, 364K BTU Ouptput
  • 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 (399) taco 0013 boiler circulators
,

weil-mclain ultra399s4

,

ULTRA399S4

Item#:
ULTRA399S4
Manufacturer Item:
383-500-738
Manufacturer:
WEIL-MCLAIN
Weil-McLain Ultra UG-299 Cast Aluminum High-Efficiency Condensing Natural/LP Gas Fired Water Boiler, 92.5% AFUE, 62 - 299K BTU Input, 270K BTU Output
  • 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

,

ULTRA299S4

Item#:
ULTRA299S4
Manufacturer Item:
383-500-737
Manufacturer:
WEIL-MCLAIN
Weil-McLain Ultra UG-230 Cast Aluminum High-Efficiency Condensing Natural/LP Gas Fired Water Boiler, 94.1% AFUE, 46 - 230K BTU Input, 207K BTU Output
  • 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

,

ULTRA230S4

Item#:
ULTRA230S4
Manufacturer Item:
383-500-736
Manufacturer:
WEIL-MCLAIN
Weil-McLain Ultra UG-155 Cast Aluminum High-Efficiency Condensing Natural/LP Gas Fired Water Boiler, 0.94 AFUE, 31 - 155K BTU Input, 139K BTU Output
  • 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

Item#:
ULTRA155S4
Manufacturer Item:
383500735
Manufacturer:
WEIL-MCLAIN
Oil Fired Cast Iron Water Boiler 5 Section 86% W/Tankless,

Weil-Mclain WTGO-5-S4

,

WTGO-5-S4

Item#:
WTGO-5-S4
Manufacturer Item:
386-701-030
Manufacturer:
WEIL-MCLAIN
Weil-McLain Cast Iron Oil Fired Boiler,

Weil-Mclain WTGO-4-S4

,

WTGO-4-S4

Item#:
WTGO-4-S4
Manufacturer Item:
386-701-029
Manufacturer:
WEIL-MCLAIN
Weil-McLain Cast Iron High Efficiency Oil Fired Water Boiler with Coil, 85% AFUE, 133 MBH Input, 114 MBH Heating
  • Factory tested and assembled cast iron section assembly
  • Tankless heater (P-units) or tankless opening cover plate (A-units)
  • Insulated steel jacket
  • Aluminized steel flue collector hood with flue cap on top outlet (convertible to rear outlet)
  • Swing away burner mounting door
  • Refractory blanket and target wall in combustion area
  • Includes 007 circulator
  • Combustion temperature controls, LWCO and circulator relay
  • Electrical junction box with wiring harnesses
  • Junction box cover plate with service switch
  • (2) vent pipe brackets
  • Pressure and temperature gauge
  • 30 psi ASME pressure relief valve
  • Drain valve
  • Barometric damper
  • 3/4" NPT temperature control
  • 1-1/4" circulator flange for P-units, 1-1/2" for A-units
  • Temperature ranges from 40 - 140 deg F
,

weil-mclain wtgo-3-s4

,

WTGO-3-S4

Item#:
WTGO-3-S4
Manufacturer Item:
386-701-027
Manufacturer:
WEIL-MCLAIN
Weil Mclain WGO-6-S4 Oil Fired Cast Iron Water Boiler 6 Section 86%,

Weil-Mclain WGO-6-S4

Item#:
WGO-6-S4
Manufacturer Item:
386-701-016
Manufacturer:
WEIL-MCLAIN
Weil Mclain WGO-5-S4 Oil Fired Cast Iron Water Boiler 5 Section 86%,

Weil-Mclain WGO-5-S4

,

WGO-5-S4

Item#:
WGO-5-S4
Manufacturer Item:
386-701-015
Manufacturer:
WEIL-MCLAIN
|◀ 1 - 12 of 105 ▶|
View: