GF N
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3
Cod. 35446572 - 06/2007 (Rev. 00)
OIL
150 Ø
A
72
a1
1
400
950
689
826
896
156
2
4
5
6
a1
a4
a5
3
a2
a3
400
950
7
8
102
Wood - Coke
1. INTRODUCTION
The
GFN
is a new cast-iron boiler that burns solid fuel
(coke and wood) or oil (with optional kit). The boiler shell
is composed of parts assembled with nipples. The pro-
file of these parts has been specially designed and the
optimal division of the fins provides high heat efficiency,
high heat output and considerable energy savings. The
firebox has been specifically designed to accommodate
large pieces of wood; it is loaded through the large top
door. The firebox is completely wet, which ensures a
long service life and high efficiency.
An optional kit, consisting of a new front door with safety
shutoff switch and a new control panel, is available for
mounting an oil burner directly on the boiler.
An optional safety overheating is also available (fig. 1).
2. TECHNICAL DATA AND DIMENSIONS
1.
Thermostat control
2.
Thermometer
3.
Chimney draught adjustment
4.
Loading door
5.
Ash box door
6.
Air inlet shutter
a1.
1 1/2" system delivery
a2.
1 1/2" system return
a3.
1/2" boiler drain
a4.
3/4" safety coil connection (optional)
a5.
1/2" safety valve sheath connection (optional)
GFN 4
GFN 5
GFN 6
GFN 7
GFN 8
Model
Oil
14,4
19,4
23,4
29,4
34,4
Power
output
kW
Coke III
12,3
16,1
19,9
23,7
27,5
Wood
Power
output
kW
Power
output
kW
18
26
34
42
50
Power
input
kW
20,1
28,9
37,7
46,5
55,3
4
5
6
7
8
N°
elements
20
24
28
32
36
Water
content
dm
3
3
3
3
3
3
Max
pressure
bar
447
547
647
747
847
A
mm
1 1/2"
1 1/2"
1 1/2"
1 1/2"
1 1/2"
Delivery
a1
1 1/2"
1 1/2"
1 1/2"
1 1/2"
1 1/2"
Return
a2
160
190
220
250
280
Weight
kg
fig. 2
Safety overheating system (optional)
fig. 1
Summary of Contents for GNF 4
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