Smith 88 - Page 28

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INSTALLATION AND OPERATING INSTRUCTIONS
Water
Content
Approx.
Shipping
Weight,
lb
Steam,
gal
9.3 465
9.3 465
10.8 576
10.8 576
12.4 700
12.4 700
13.9 812
Boiler
Model
Input,
MBH
Heating Capacity³ Net I=B=R Ratings¹
Standing Pilot
AFUE³
Spark Ignition
AFUE³
Steam,
MBH
Steam,
sqft
Steam,
MBH
Steam,
%
Steam,
%
88 88.5 74 233 56 80.6 83.0
118 118.0 98 308 74 81.2 82.6
147 147.5 123 383 92 80.6 82.6
177 177.0 147 458 110 81.0 82.4
206 206.5 171 533 128 80.7 82.3
236 236.0 196 613 147 80.9 82.2
288 287.5 238 746 179 80.7 82.0
Table 11.3: Boiler Ratings
1. Net I=B=R Ratings are based on DOE Heating Capacity less an allowance for normal piping and pickup as determined by
the Testing and Rating Standard for Low Pressure Cast Iron Heating Boilers of the Hydronics Institute. Steam ratings are
based on a piping and pickup factor of 1.33. Consult manufacturer before selecting a boiler for gravity hot water installations
or for installations having unusual piping and pickup requirements such as exposed piping, night set back, etc. Ratings shown
are for elevations up to 2,000 feet. For elevations above 2,000 feet, ratings should be reduced at the rate of 4% for each
1,000 feet above sea level.
2. Heating Capacity and Annual Fuel Utilization Efficiency (AFUE) ratings are based on U.S. Government tests. Before
purchasing this appliance, read important information about its estimated annual energy consumption or energy efficiency
rating that is vailable from your retailer.
NOTE: Minimum Inlet Gas Pressure: Natural Gas @ 5.0 in. W.C.², LP Gas @ 11.0 in. W.C.
Exceptions:
177 BTU STDG 5.3"
288 BTU STDG 5.5"
288 BTU SPRK 5.3"