Buderus GB162-80
Buderus GB162-80
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Buderus GB162-80 - 260K BTU - 93.8% AFUE - Hot Water Gas Boiler - Direct Vent



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Buderus GB162-80 - 260K BTU - 93.8% AFUE - Hot Water Gas Boiler - Direct Vent
Buderus GB162-80 - 260K BTU - 93.8% AFUE - Hot Water Gas Boiler - Direct Vent
Model: GB162-80
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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


    The GB162 is Buderus's pinnacle offering of high efficiency condensing technology. Advanced modulation algorithims work together with modern condensing technology to produce astoundingly high efficiency levels. The small size of the GB162 combined with its minimal installation clearances give you a notable amount of installation flexibility. Also included with the boiler is a low-loss header, an internal manifold that guarantees proper fluid flow through the inside of the boiler at all times.
  • Ultra-High Efficiency
  • The GB162's state of the art condensing technology allows the boiler to achieve an AFUE of 96%. This incredible efficiency level brings your heating bills as low as possible.
  • Included AM10 Outdoor Reset
  • The GB162 line of boilers includes an AM10 outdoor reset control for optimal efficiency during temperate months.
  • Prefabricated Low-Loss Header
  • The GB162 comes with an internal low-loss header pre-installed. It ensures proper fluid flow rate throughout the unit, extending operation lifetime and bringing installation time down to an absolute minimum.
  • Small Size and Low Installation Clearances
  • Low installation clearances on all sides, wall mounting configuration, and small footprint translate into a boiler that can be installed almost anywhere.
California residents see
Warning: This product can expose you to chemicals including Lead which is known to the State of California to cause Developmental Harm.
For more information go to: www.p65Warnings.ca.gov


specs product image PID-37565
General Information
Product Line
Medium Learn More
Hot Water
Fuel Type Learn More
Natural Gas
Combustion Type Learn More
Vent Type Learn More
Direct Vent
DHW Production Learn More
Modulating/Staging Learn More
Mount Type
Minimum Altitude
0 Feet
Maximum Altitude
2000 Feet
Includes Pump
Assembly Type
AFUE Learn More
93.8 %
Maximum Input Capacity Learn More
290000 BTU
Minimum Input Capacity
69000 BTU
DOE Heating Capacity Learn More
260000 BTU
Net I=B=R Capacity Learn More
226000 BTU
Ultra Low NOx Emissions Learn More
Electrical Data
120 Volts
60 Hz
Flue Connection Size
4 Inches
Gas Connection Size
1 Inch
Supply Connection
2 Inches
Return Connection
2 Inches
Product Height
51 29/48 Inches
Product Width
20 1/2 Inches
Product Depth
18 7/24 Inches
Product Weight
189 Pounds
CSA Listed
Warranty Information
Parts Warranty Learn More
1 Year
Heat Exchanger Warranty
Lifetime Years


Buderus GB162-80 Reviews & Ratings

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Buderus GB162-80 - 260K BTU - 93.8% AFUE - Hot Water Gas Boiler - Direct Vent
Buderus GB162-80
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