Product Overview

G215 – G315
Cast Iron Residential Boilers
The Three-Pass Boiler
is Designed for
❚ Optimized combustion with positive
pressure-fired boilers and tailored
chamber geometry — no need for a
heat-consuming refractory or target wall
eliminating the need for costly repairs.
❚ Minimal stack losses with the
modified three-pass flue design’s
large heat transfer areas.
❚ Low standby losses with a full 3½" to
4" jacket of thermal insulation around
the entire block — even underneath
the boiler!
How It Works
The flame fires into the first chamber.
Then the flue products flow through
the second pass to the front of the
boiler. From there they reverse direction
again—moving through the third pass to
the back, and finally exiting via the flue
connection into the chimney. Because
the gases are held in the boiler longer
this allows the cast iron to absorb the
maximum amount of heat, resulting in
a lower stack temperature and a
higher efficiency.
Domestic Hot Water Tanks
The Buderus indirect fired domestic hot water tanks are designed
to fit any specialized need. To maximize space, you are able
to pair the LT-tanks with the G215 stacked on top. For greater
recovery rates, you have the option of pairing the boilers with
vertical model tanks. These tanks increase boiler efficiency,
system longevity and minimize the need of service calls, when
paired with a Buderus boiler. The tanks are designed with many
features to aid in maintenance, such as easy access ports for
cleaning the tank’s interior, extra thick Magnesium anode rods and
Thermoglaze
®
interior tank coating to protect against corrosion and aid in cleaning.
To help maximize efficiency the tanks are so well insulated against heat loss, they
lose less than a ¼˚ F per hour.
Convenient Logamatic Control
The Buderus Logamatic Controls, designed to work
with all Buderus boilers, significantly increase the
efficiency of your heating system. The Controls maintain a comfortable environment
by measuring indoor and outdoor temperatures in order to automatically and
effectively regulate the temperature of the boiler. This allows the boiler to use
less fuel while keeping your home exactly as warm as you want it. The Logamatic
Controls also include the convenience of a setback feature for nighttime as well
as a domestic hot water priority option. So, no matter how hard the heating has to
work on a cold day, there will always be hot water for showers. All control functions
are able to be customized by you. Additionally, the Buderus Logamatic R2107 is
designed with a built-in self diagnostic system to aid in maintenance and reduce
service costs.