Manual

G115WS
Cast Iron Residential Oil Boiler
www.buderus.net
Subject to change without notice
© 2008 Bosch Thermotechnology Corp.
Part Number 44499053 07/08
Bosch Thermotechnology Corp.
50 Wentworth Avenue
Londonderry, NH 03053
Tel: [phone]
Fax: [phone]
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Model G115WS/3 G115WS/4 G115WS/5
Gross Output BTU/Hr
Net IBR BTU/Hr
Firing Rate (GPH)
AFUE
Vent Connection Size
Supply
Return
# of Sections 3 4 5
Overall Boiler Length (L)
Boiler Block Length (L
K
)
Minimum Boiler Width
Boiler Width
Minimum Boiler Height
Height
Boiler Feet Spacing
Fire Box Depth (T)
Fire Box Volume cu. ft.
Dry Weight (lbs)
Water Content (gal)
Side
Rear
85,000 74,000 109,000 98,000 136,000 120,000
74,000 64,000 95,000 85,000 119,000 104,000
0.70 0.60 0.90 0.80 1.10 1.0
86.7 % 86.5% 86.9% 86.8% 87% 86%
5˝ 5˝ 5˝
1¼˝ 1¼˝ 1¼˝
1˝ 1˝ 1˝
23⅝˝ 28⅝˝ 33⅜˝
21⅛˝ 25¾˝ 30½˝
18˝ 18˝ 18˝
23½˝ 23½˝ 23½˝
33½˝ 33½˝ 33½˝
34½˝ 34½˝ 34½˝
10⅜˝ 16⅛˝ 20⅞˝
16˝ 20½˝ 25¼˝
1.20 1.75 2.21
330 403 476
8.7 10.8 12.9
15˝ 15˝ 15˝
20˝ 20˝ 20˝
Performance Data
Piping Connections
Physical Dimensions
Recommended Clearances for Ease of Serviceability
Chimney
Vent
Chimney
Vent
Chimney
Vent
Direct
Vent
Direct
Vent
Direct
Vent
CRN# 1495.9C
All G115WS
KP Kits Include:
L7248C1006
aquastat
Flexible oil line
Circulator
Flanges
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ı
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G115WS direct vent installation tips
ETL approved with two 4" 90° elbows, and up to 6' of 4" regular smoke pipe for short vent
runs. For longer runs, use up to 10' of flexible stainless steel insulated oil vent.
Use 4" metal pipe for air intake. Use at least 6' to 8' of 4" metal pipe for air intake in
conditioned space in cold climates (below –20º F)
Direct vent burners are equipped with pre-and post-purge cycles for safe, complete exhaust
of all combustion products, while cooling oil burner nozzle for positive shut-off.
Buderus recommends the use of Becket, Carlin and Riello. Please refer to the Buderus trade
price list for models.
AT-4 Aerocowl Termination
6 4
4
4
26"
9"
5"
3"
7
13"
18"
FT-4 Concentric Pipe-in-Pipe Termination
One of the two ETL certified terminations are required for use with G115WS series boilers for direct vent
applications. Both terminations are “zero clearance” systems for easy and versatile applications.
Side Rear Top Galvanized Flex AT-4 FT-4
24˝ 6˝ 18˝ 6˝ 18˝ 1˝ 1˝ 1˝
Vent Insulated Exhaust Only Concentric
Pipe Oil Vent Termination Termination
Clearance Requirements
Front
For CSA approval in
Canada you must
order a WMO-1
blocked vent switch.
CRN# 1495.9C
All G115WS
KP Kits Include:
L7248C1006
aquastat
Flexible oil line
Circulator
Flanges
ı
ı
ı
ı