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* Substitute “P” for completely assembled packaged boiler without burner (WGO-2 through WGO-6 only).
Substitute “A” for boiler only for use with approved burners as listed with I-B=R.
** Available only as an “A” unit.
(1) WGO boiler designed with convertible vertical and horizontal flue outlet.
(2) MBH refers to thousands of Btu per hour.
(3) Based on 140,000 Btu/gal.
(4) Based on standard test procedures prescribed by the United States Department of Energy at combustion condition of 13.5% CO2 and -0.02" W.C. draft
overfire.
(5) Net I=B=R ratings are based on net installed radiation 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 piping and pick-up allowance of 1.15. An additional allowance should be made for unusual piping and
pick-up loads. Consult local Weil-McLain Sales Office.
(6) I=B=R gross output
(7) See page 12 for minimum breeching diameter.
(8) Listed draft losses are for factory-shipped settings.
WGO GOLD OIL WATER BOILER RATINGS (1)
ROUND DRAFT
I=B=R NET DOE MINIMUM FLUE BOILER LOSS
BOILER BURNER DOE HEATING I=B=R SEASONAL I=B=R CHIMNEY OUTLET WATER THRU
MODEL CAPACITY CAPACITY (4) RATINGS EFFICIENCY %
RECT ROUND HEIGHT
SIZE CONTENT BOILER
NUMBER GPH (3) MBH (2) (5) AFUE
IN IN FT
IN (7) GAL IN W.C. (8)
*-WGO-2 0.70 86 75 86.4 8 x 8 6 15 7 11.0 .010
*-WGO-3 0.95 115 100 85.3 8 x 8 6 15 7 14.9 .020
*-WGO-4 1.20 145 126 85.0 8 x 8 6 15 7 13.4 .010
*-WGO-5 1.45 175 152 85.0 8 x 8 7 15 7 15.9 .015
*-WGO-6 1.75 212 184 85.0 8 x 8 7 15 7 18.4 .015
**-WGO-7 2.00 242 210 85.0 8 x 8 8 15 7 20.8 .015
**-WGO-8 2.30 266 (6) 231 — 8 x 12 8 20 7 23.3 .025
**-WGO-9 2.55 295 (6) 257 — 8 x 12 8 20 7 25.8 .030