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Brand Name
BTU Input
BTU Output
Material
AFUE
Voltage
Williamsom-Thermoflo GWC-070-N-T-S2 Natural Gas Sealed Combustion Condensing Direct Vent Water Boiler
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Item#:
GWC-070-N-T-S2
Manufacturer Item:
GWC-070-N-T-S2-W
Manufacturer:
WILLIAMSON -THERMOFLO
Williamsom-Thermoflo GWA-038-N-T-S3-W Natural Gas Fired Cast Iron Water Boiler 200 BTU Input 147K BTU Output 84%
- Natural or Propane
- Factory tested
- Easy service
- One-piece access door
- All controls in easy reach
- Cast iron sections with built-in air separator
- Insulated heavy-gauge steel jacket
- Low water cut-off,
Item#:
GWA-200-N-T-S3-W
Manufacturer Item:
GWA-200-N-T-S3-W
Manufacturer:
WILLIAMSON -THERMOFLO
Williamsom-Thermoflo GWA-038-N-T-S3-W Natural Gas Fired Cast Iron Water Boiler 166 BTU Input 122K BTU Output 84%
- Natural or Propane
- Factory tested
- Easy service
- One-piece access door
- All controls in easy reach
- Cast iron sections with built-in air separator
- Insulated heavy-gauge steel jacket
- Low water cut-off,
Item#:
GWA-166-N-T-S3-W
Manufacturer Item:
GWA-166-N-T-S3-W
Manufacturer:
WILLIAMSON -THERMOFLO
Williamsom-Thermoflo GWA-038-N-T-S3-W Natural Gas Fired Cast Iron Water Boiler 133 BTU Input 98K BTU Output 84%
- Natural or Propane
- Factory tested
- Easy service
- One-piece access door
- All controls in easy reach
- Cast iron sections with built-in air separator
- Insulated heavy-gauge steel jacket
- Low water cut-off,
Item#:
GWA-133-N-T-S3-W
Manufacturer Item:
GWA-133-N-T-S3-W
Manufacturer:
WILLIAMSON -THERMOFLO
Williamsom-Thermoflo GWA-038-N-T-S3-W Natural Gas Fired Cast Iron Water Boiler 100 BTU Input 73K BTU Output 84%
- Natural or Propane
- Factory tested
- Easy service
- One-piece access door
- All controls in easy reach
- Cast iron sections with built-in air separator
- Insulated heavy-gauge steel jacket
- Low water cut-off,
Item#:
GWA-100-N-T-S3-W
Manufacturer Item:
GWA-100-N-T-S3-W
Manufacturer:
WILLIAMSON -THERMOFLO
Williamsom-Thermoflo GWA-038-N-T-S3-W Natural Gas Fired Cast Iron Water Boiler 67K BTU Input 48K BTU Output 84%
- Natural or Propane
- Factory tested
- Easy service
- One-piece access door
- All controls in easy reach
- Cast iron sections with built-in air separator
- Insulated heavy-gauge steel jacket
- Low water cut-off,
williamson -thermoflo gwa-067-n-t-s3-w
Item#:
GWA-067-N-T-S3-W
Manufacturer Item:
GWA-067-N-T-S3-W
Manufacturer:
WILLIAMSON -THERMOFLO
Williamsom-Thermoflo GWA-038-N-T-S3-W Natural Gas Fired Cast Iron Water Boiler 38K BTU Input 27K BTU Output 84%
- Natural or Propane
- Factory tested
- Easy service
- One-piece access door
- All controls in easy reach
- Cast iron sections with built-in air separator
- Insulated heavy-gauge steel jacket
- Low water cut-off,
Item#:
GWA-038-N-T-S3-W
Manufacturer Item:
GWA-038-N-T-S3-W
Manufacturer:
WILLIAMSON -THERMOFLO
Williamsom-Thermoflo GSA-200-N-IP-S2 Cast Iron Natural Gas Fired Steam Boiler, 82.9% AFUE, 200K BTU
- Factory tested
- Easy service - 1-piece access door, all controls in easy reach
- High efficiency - generous heating surface, automatic vent damper
- Rugged construction for long life, stainless steel burners, integral cast iron legs, integral draft diverter, insulated heavy gauge steel jacket, heavy gauge aluminized steel flue collector
- 24 VAC combination gas valve
- Gauge glass and guard assembly
- Pressure gauge and siphon assembly
- Pressure limit control
- Probe low water cut-off
- High temperature limit control
- 15 psig ASME relief valve
- Drain valve
- Spark ignited (intermittent) pilot system, electronic ignition/flame supervisory control
- 10 years limited warranty on boiler sections, 1 year limited warranty on parts
Item#:
GSA-200-N-IP-S2
Manufacturer Item:
GSA-200-N-IP-S2
Manufacturer:
WILLIAMSON -THERMOFLO
Williamsom-Thermoflo GSA-100-N-IP Cast Iron Natural Gas Fired Steam Boiler, 82.9% AFUE, 175K BTU Input 109K BTU Output
- Factory tested
- Easy service - 1-piece access door, all controls in easy reach
- High efficiency - generous heating surface, automatic vent damper
- Rugged construction for long life, stainless steel burners, integral cast iron legs, integral draft diverter, insulated heavy gauge steel jacket, heavy gauge aluminized steel flue collector
- 24 VAC combination gas valve
- Gauge glass and guard assembly
- Pressure gauge and siphon assembly
- Pressure limit control
- Probe low water cut-off
- High temperature limit control
- 15 psig ASME relief valve
- Drain valve
- Spark ignited (intermittent) pilot system, electronic ignition/flame supervisory control
- 10 years limited warranty on boiler sections, 1 year limited warranty on parts
Item#:
GSA-175-N-IP-S2
Manufacturer Item:
GSA-175-N-IP-S2
Manufacturer:
WILLIAMSON -THERMOFLO
Williamsom-Thermoflo GSA-100-N-IP Cast Iron Natural Gas Fired Steam Boiler, 82.9% AFUE, 150K BTU Input 94K BTU Output
- Factory tested
- Easy service - 1-piece access door, all controls in easy reach
- High efficiency - generous heating surface, automatic vent damper
- Rugged construction for long life, stainless steel burners, integral cast iron legs, integral draft diverter, insulated heavy gauge steel jacket, heavy gauge aluminized steel flue collector
- 24 VAC combination gas valve
- Gauge glass and guard assembly
- Pressure gauge and siphon assembly
- Pressure limit control
- Probe low water cut-off
- High temperature limit control
- 15 psig ASME relief valve
- Drain valve
- Spark ignited (intermittent) pilot system, electronic ignition/flame supervisory control
- 10 years limited warranty on boiler sections, 1 year limited warranty on parts
Item#:
GSA-150-N-IP-S2
Manufacturer Item:
GSA-150-N-IP-S2
Manufacturer:
WILLIAMSON -THERMOFLO
Williamsom-Thermoflo GSA-100-N-IP Cast Iron Natural Gas Fired Steam Boiler, 82.9% AFUE, 125K BTU Input 78K BTU Output
- Factory tested
- Easy service - 1-piece access door, all controls in easy reach
- High efficiency - generous heating surface, automatic vent damper
- Rugged construction for long life, stainless steel burners, integral cast iron legs, integral draft diverter, insulated heavy gauge steel jacket, heavy gauge aluminized steel flue collector
- 24 VAC combination gas valve
- Gauge glass and guard assembly
- Pressure gauge and siphon assembly
- Pressure limit control
- Probe low water cut-off
- High temperature limit control
- 15 psig ASME relief valve
- Drain valve
- Spark ignited (intermittent) pilot system, electronic ignition/flame supervisory control
- 10 years limited warranty on boiler sections, 1 year limited warranty on parts
williamson -thermoflo gsa-125-n-ip-s2
Item#:
GSA-125-N-IP-S2
Manufacturer Item:
GSA-125-N-IP-S2
Manufacturer:
WILLIAMSON -THERMOFLO
Williamsom-Thermoflo GSA-100-N-IP Cast Iron Natural Gas Fired Steam Boiler, 82.9% AFUE, 100K BTU Input 62K BTU Output
- Factory tested
- Easy service - 1-piece access door, all controls in easy reach
- High efficiency - generous heating surface, automatic vent damper
- Rugged construction for long life, stainless steel burners, integral cast iron legs, integral draft diverter, insulated heavy gauge steel jacket, heavy gauge aluminized steel flue collector
- 24 VAC combination gas valve
- Gauge glass and guard assembly
- Pressure gauge and siphon assembly
- Pressure limit control
- Probe low water cut-off
- High temperature limit control
- 15 psig ASME relief valve
- Drain valve
- Spark ignited (intermittent) pilot system, electronic ignition/flame supervisory control
- 10 years limited warranty on boiler sections, 1 year limited warranty on parts
Item#:
GSA-100-N-IP-S2
Manufacturer Item:
GSA-100-N-IP-S2
Manufacturer:
WILLIAMSON -THERMOFLO