GB312 Seriess
Natural Gas Condensing Boiler
Efficient Energy Solutions
Buderus commercial boilers are designed to deliver high levels of energy
efficiency, reliable heating, and a long product life. Manufactured in Europe to
their strict safety standards, all Buderus products undergo rigorous quality tests
to ensure total safety, durability, and outstanding performance year after year.
The Buderus GB312 boiler offers a range of outputs from 305 MBH up to
955 MBH. Whether you’re planning projects for private multi-unit housing or
commercial premises, the wide range offered by the Buderus GB312 means you
are certain to find a condensing heating system to suit your needs.
The GB312 is a high performance, compact condensing boiler which provides
a high combustion rating of 93.4%. Especially well-suited for large residential
applications, multi-unit apartment dwellings, and light to moderate commercial
applications, the GB312 can be installed as a single unit or as part of a multi-
boiler cascade of up to 8 units. As a powerful floor-standing boiler, it’s remarkably
compact, lightweight, and easy to install. The GB312 is also whisper quiet, even
when running at full output.
The GB312 is designed to make servicing and maintenance as straightforward
as possible. All parts can be accessed from the front, and the burners can be
accessed without having to disturb the gas connection. The boiler is equipped
with SAFe digital ignition technology and a Buderus Energy Management
System (EMS).
Engineering Made Easy — Thanks to High Quality
Designing heating systems for medium and large buildings demands more than
just heat at the push of a button, but the added benefits of security for years to
come and greater flexibility. The innovative gas fired condensing GB312 boiler
from Buderus offers advanced condensing technology in a compact, robust
form—with high-grade components that meet every demand. All of that plus the
freedom to use the available space as you want it, thanks to compact dimensions
and the option of a balanced flue operation.
EMS Logamatic Control System:
Digital link-up with the SAFe burner
control unit
Modulating premix gas burner:
With a wide modulation range and good
accessibility
Combustion Air Fan:
Variable speed for low power consumption
High Output Aluminum Heat Exchanger:
With insulation for minimum thermal losses and
maximum energy yield
Generously Sized Clean-Out Apertures:
For easy maintenance and inspection
from the front
Neutralizing System:
Integrates under the boiler jacket*
*This is an accessory item not included with boiler
More Benefits
❚
Supplied with the BC10 and AM10
boiler controls with digital service
diagnostic and status display
❚
Insulated boiler block for low
standby loss
❚
Intelligent controls with built-in Energy
Management System (EMS)
❚
Condensate trap included
❚
Burner management technology
❚
Lightweight and compact to fit into
existing boiler rooms
❚
Modulating burner 25% to 100% for all
except the 90kW which is 33% to 100%
❚
Suitable for sealed combustion or open
vented installations
❚
Simple to service and maintain
❚
Vertical or sidewall vent up to 100 ft.
❚
CSD-1 Installation kit option available
❚
Cascade of four boilers using the
available MCM10 control module
❚
Cascade system controls up to 8 boilers
with the Logamatic 4323 Control
❚
Optional condensate neutralization tank
is available
