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Commercial Gas Boilers
Revised November 2008 PG 2 OF 4
www.hotwater.com
AOSDG25200
GW SERIES INDOOR MODELS GWO SERIES OUTDOOR MODELS
MODEL
NUMBER
BTU INPUT
PER HOUR
DIMENSIONS IN INCHES
EXHAUST VENT AIR INLET WATER CONN. GAS PIPE
(SEE DRAWINGS ABOVE)
WIDTH A B C
GW SERIES INDOOR MODELS
GW-300 300,000 5 5 1-1/2 3/4 29-1/2 14-13/16 9 12
GW-400 399,900 6 6 1-1/2 1 35-3/4 17-15/16 9 14-3/4
GW-500 500,000 6 6 2 1 42 21-1/16 9 14-3/4
GW-650 650,000 8 8 2 1-1/4 51-3/8 25-3/4 9 14-3/4
GW-750 750,000 8 8 2 1-1/4 57-3/8 28-7/8 9 17-1/4
GWO SERIES OUTDOOR MODELS
GW-300 300,000 - - 1-1/2 3/4 - 49 24-3/16 -
GW-400 400,900 - - 1-1/2 1 - 55-1/4 24-3/16 -
GW-500 500,000 - - 2 1 - 61-1/2 24-3/16 -
GW-650 650,000 - - 2 1-1/4 - 70-7/8 - 27-11/16
GW-750 750,000 - - 2 1-1/4 - 77-1/8 - 27-11/16