Installation manual

Page 7 
The BIASI B 10-series boilers are wet base design, sectional, cast-iron boilers 
for forced hot water heating systems. The boilers are shipped pre-assembled from 
the factory in lengths from three to nine sections. They are designed for firing with 
oil or gas power burners, which are packed separately along with the jacket and 
controls for shipping purposes. 
  When the boiler is received, check the contents to ensure that there is no 
shortage or damage to any part of the boiler system. With every boiler you should 
receive a boiler block, jacket, trim kit and a burner (oil or gas).  
  Trim Kit Components 
USE ONLY THE UL LISTED BOILER COMPONENTS AND 
UL/CSA LISTED OIL OR GAS BURNER COMPONENTS SUPPLIED WITH 
THE VEGA B10 BOILER SYSTEM. 
1 - Honeywell L4006A or 7248U 
aquastat 
1 – Immersion well 
1 – ¾” X 3” Nipple     
1 – Combo pressure/temp gauge 
1 – 30 PSI Pressure relief valve 
1 – ¾” Boiler drain 
1 – Cera-fiber Pad for floor of 
combustion chamber 
2 – ¾” Plugs 
1 – ¼” X ½” Bushing 
1 – ¾” 90° Elbow   
1 - Double acting barometric  
damper with manual reset 
spill switch 
 (Gas systems only) 
1. General Information 
All dimensions are in inches. 
L 
18 3/4 
29 3/4 
Boiler 
Model
Heating 
Capacity
Flue Gas 
Resistance Efficiency
Water 
Content
Length 
(L) Weight
MBH GPH- Oil MBH- Gas OIL GAS IN. W.C. % GALS. IN. LBS
B-13 67 0.55 80 58 60 0.03 86.6 3.5 15.5 249
B-14 110 0.90 115 96 84 0.04 85.8 4.7 19.5 308
B-15 124 1.00 140 108 103 0.06 87.2 5.7 23.5 367
B-16 153 1.25 175 133 129 0.07 86.7 6.7 28.5 427
B-17 185 1.50 215 161 157 0.08 86.8 7.7 33.5 486
B-18 211 1.80 257 183 189 0.1 86.8 8.8 38.5 546
B-19 257 2.10 298 223 219 0.12 86.5 9.9 42.5 606
Maximum Water Working Pressure 58 psi Maximum Relief Valve is 30 psi at 500 MBH
Gross Input Burner 
Capacity Net Output










