Specifications

Proven G3 Heat
Exchanger
Made of specially formulated
BC25-HSi high silicon grey
iron, this heat exchanger has
been precision formed to
create turbulent water ow
throughout all areas of the
heat exchanger, eliminating
hot and cold spots, and
maximizing heat transfer.
G3 Base
Featuring heavy gauge steel construction, this base provides
unmatched stability and safety through its wrap-around design.
The design also provides a tighter seal with fewer joints. Thick
insulating plates direct the heat from the burner tubes upward into
the heat exchanger, helping to fully utilize every BTU possible from
the combustion process.
Step Opening Gas Valve
This type of gas valve enables the
boiler to light on low re. Once a
ame is established, the valve gently
opens to full re safely and smoothly.
This provides quiet ignition and
promotes long boiler life.
IQ Boiler Control
Integrates aquastat, relay,
and ignition functions into a
single module. Mounted on
hinged panel for ease of access.
IQ Option Panel
Accepts optional IQ Option
Cards for simple “plug & play”
installation of:
– Outdoor Reset
– Low Water Cutoff
– Aquastat
boiler
control
option
panel
option
card
control
system
Made in
America
Cast iron, proven for long life
The best and
longest lasting in
the industry