Columbia EMG-31 120 Instructions Manual page 5

Water Content
Coil Capacity
A) Jacket Height
B) Jacket Width
C) Hydronic Supply Height
D) Coil Supply Height
E) Burner Height
F) Hydronic Return Height
G) Flue Pipe Diameter
H) Washout
I) Jacket Depth (Including Flange)
Depth Front to Rear w/ Burner
Hydronic Supply Size
Hydronic Return Size
Washout Size
Boiler Dimensions
21 Gallon
5 GPM
45"
21"
43"
41"
8-1/2"
21-1/2"
6"
21-1/2"
21"
29-3/4"
1-1/4"
1-1/4"
3/4"