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Williamson-Thermoflo FS-120 COMBI
Williamson-Thermoflo FS-120 COMBI
Williamson-Thermoflo FS-120 COMBI
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Williamson-Thermoflo FS-120 COMBI
Williamson-Thermoflo FS-120 COMBI

Williamson-Thermoflo FS-120 - 109K BTU - 92.2% AFUE - Combi Gas Boiler - Direct Vent

Model:

FS-120 COMBI

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$1,999.00
Was $2,439.00
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Williamson-Thermoflo FS-120 - 109K BTU - 92.2% AFUE - Combi Gas Boiler - Direct Vent
Williamson-Thermoflo FS-120 - 109K BTU - 92.2% AFUE - Combi Gas Boiler - Direct Vent
Model: FS-120 COMBI
$1,999.00
Was $2,439.00
Features
Specifications
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Features

    Keep your home warm and heating costs low with the Williamson-Thermoflo Freestyle combi-boiler. The Freestyle FS-120 COMBI boasts an impressive 92.2% AFUE efficiency rating, making it one of the most efficient boilers on the residential market. Easy to install and even simpler to maintain, the Freestyle boiler comes with a wall mount allowing it to fit into almost any space with its compact design. A crystal clear digital display allows for easy access to important information as well as the ability to quickly and easily adjust any of the boilers settings. The FS-120 COMBI comes standard with multiple features designed to keep energy costs down, including its modulating combustion system, allowing the FS-120 COMBI to run reliably while saving you money. As a Combi model, this boiler comes with a built in domestic hot water heater and circulator pump, allowing it to provide endless hot water to your showers, sinks, and home appliances. The Freestyle series runs standard on natural gas, but can be converted to propane with a simple adapter, making it flexible enough to be used in any home.
  • Higher Efficiency, Lower Costs
  • With an AFUE efficiency rating above 92%, the Freestyle boiler is one of the most efficient on the market. With its ASME rated heat exchanger and modulating burner, it will not only lower energy costs, but help reduce your carbon footprint as well.
  • Factory Tested
  • All Freestyle boilers come factory tested and certified by top industry analysts ensuring they will remain reliable and efficient for years to come.
  • Unmatched Flexibility
  • Each Freestyle comes with its own wall mounting kit. Combined with the boiler's compact design and multiple venting options, the Freestyle boiler can fit into nearly any residential space.
  • Built in Hot Water Heater
  • The Freestyle Combi models come with a built in tankless water heater. Using its built-in flat plate heat exchanger, the Freestyle Combi unit can provide hot water for your entire home.
  • Product Includes
  • (1) FS-120 COMBI Freestyle Boiler
  • (1) 640-000-044WT Wall-Mount Kit
  • (1) 640-000-037WT Condensate Trap Kit
  • (1) 640-000-017WT FX3-FP Circulator

Specifications

FS-120 COMBI
specs product image PID-58497
General Information
Product Line
Freestyle
Medium Learn More
Hot Water
Fuel Type Learn More
Natural Gas
Combustion Type Learn More
Condensing
Vent Type Learn More
Direct Vent
DHW Production Learn More
Yes
Modulating/Staging Learn More
Modulating
Mount Type
Wall
Minimum Altitude
0 Feet
Maximum Altitude
10000 Feet
Includes Pump
Yes
Assembly Type
Packaged
Gas Conversion Kit
Available
UPC
811175015542
Performance
AFUE Learn More
92 %
Maximum Input Capacity Learn More
120000 BTU
Minimum Input Capacity
12000 BTU
DOE Heating Capacity Learn More
109000 BTU
Net I=B=R Capacity Learn More
94000 BTU
Ultra Low NOx Emissions Learn More
Yes
Turndown Ratio
10:1
Electrical Data
Phase
1
Frequency
60 Hz
Dimensions
Flue Connection Size
3 Inches
Gas Connection Size
1/2 Inch
Supply Connection
3/4 Inch
Return Connection
3/4 Inch
Product Height
23 5/8 Inches
Product Width
15 3/4 Inches
Product Depth
12 29/48 Inches
Product Weight
77 Pounds
Shipping Weight
87 Pounds
Certifications
Energy Star Listed
Yes
ETL Listed
Yes
ASME Certified
Yes
AHRI Certified
Yes
ISO Certified
Yes
AHRI Reference Number
7470130
Warranty Information
Parts Warranty Learn More
2 Years
Heat Exchanger Warranty
10 Years

Reviews

(3)
Williamson-Thermoflo FS-120 COMBI Reviews & Ratings

Recommended Accessories

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Expert Recommended Accessories Selected by Bob, our Expert
Required Accessories 9
These accessories are required to properly setup/install this product.
Optional Accessories 10

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Manuals

 
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