Weil-McLain UltraOil Manual page 39

water boiler
Appendix — Ratings
Boiler I=B=R
Model Burner
Number Capacity Capacity
GPH #2 Oil
Notes:
UO-3 0.80
0.8 GPH
UO-3 1.00
1.0 GPH
UO-4
1.20
Notes
UO-5 1.40
(1) Based on standard test procedures prescribed by the
United States Department of Energy at combustion
condition of 1.0% CO and –0.0" w.c. breeching
draft.
() Ratings shown are for sea level applications only.
For altitudes above ,000 feet, derate the product
capacity by 4% per 1,000 feet above sea level.
() Net I=B=R ratings are based on net installed radia-
tion of sufficient quantity for the requirements of
the building and nothing need be added for normal
piping and pick-up. Water ratings are based on a
Part number 550-141-986/1005
— Boiler Manual
DOE CSA CSA
Heating Input Output
MBH MBH Btuh
Notes 1, 6 Notes 2, 6 Note 2
98 112 98
122 140 122
146 168 146
172 196 172
Net Boiler Shipping
I=B=R Water Weight,
Ratings Content Approx.
MBH Gallons Pounds
Notes 3, 6
85 15.0 636
106 15.0 636
127 18.3 737
150 21.5 852
piping and pick-up allowance of 1.1. An addi-
tional allowance should be made for unusual pip-
ing and pick-up loads. Consult local Weil-McLain
Sales Office.
(4) See page 11 for minimum breeching and chimney
sizing.
() Boiler draft losses are based on operation at 11.%
CO . Set breeching draft at –0.0 inch water col-

umn.
(6) MBH refers to thousands of Btu per hour.
DOE
DOE Flue
Seasonal Conn.
Efficiency Size
AFUE, %
Note 4
86.5 6"
86.5 6"
86.2 6"
86.5 6"
Draft
Loss
Through
Boiler
Inches w.c.
Note 5
0.000
0.020
0.025
0.040
9