Dunkirk Empire II Installation, Operation, Repair And Parts Manual page 14

Boiler Burner Firing
Model Rate (gph)
3EW.65T 0.65
3EW.75T 0.75
3EW1.00T 1.00
4EW.90T 0.90
4EW1.25T 1.25
4EW1.50T 1.50
5EW1.20T 1.20
5EW1.75T 1.75
5EW2.00T 2.00
‡ Gallons of water per minute heated from 40°F to 140°F with
200°F boiler water temperature, intermittent draw
Input Tank less
(MBH) Rating (gpm)‡
91 2.90
105 3.00
140 3.25
126 3.15
175 3.50
210 3.75
168 3.45
245 4.00
280 4.25