Brochure

Superior design
Buderus boiler sections are assembled with beveled, surface profiled push nipples for
long, trouble-free watertight operation. Flueways of Buderus boilers are sealed gas
tight with tongue and groove section design and elastic high temperature resistant
sealing rope. This seal is fully pressed into the groove during assembly to allow
positive pressure operation. A permanent dry door gasket ensures repeated positive
sealing off of the full swing burner door, producing a proven gas tight seal.
Putting energy to work
Buderus developed a full three-pass system which increases the efficiency of the
boilers. With single-pass boilers, the flue products have only one chance to heat the
water. Buderus three-pass boilers triple this opportunity. The unique way heat flows
through the G215 and G315 boilers allows the water to be heated three separate
times. The full 3" thick thermal insulation helps to maintain a higher water temperature
even after the boiler has gone into standby mode.
GL-180M gray cast iron
Buderus GL-180M silicone injected, gray cast iron has excellent corrosion resistance,
exceptional casting characteristics, 40% greater flexibility and elasticity as well as high
thermal conductivity. Buderus developed the special substances that are impregnated
during the casting process to improve the mechanical properties of cast iron. The
graphite precipitates into smaller, modified flakes which produce GL-180M cast iron
with 40% greater elasticity and a high silicone barrier for corrosion protection. Gray
cast iron obtains its superior material characteristics primarily from a high carbon
(graphite) and silicone content. Additional elements further enhance the properties
of the GL-180M. The graphite appears in two different forms in the microstructure:
nodular form producing excellent tensile strength and great elasticity and graphite
flakes producing excellent corrosion resistance against acidic combustion products.
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Special compounds provide a gas-tight seal
for safe and efficient operation. And, thanks to
the GL-180M cast iron’s amazing flexibility, this
boiler resists thermal shock under conditions
of rapid temperature change.
G215 – G315 Series