3
RATINGS
Boiler Model
Number
Oil Burner Input
(1)
Heating
Capacity
MBH
(4)
Net AHRI Ratings
(3)
Min. Natural Draft
Chimney Size
A.F.U.E.
Rating
(4)
WITHOUT
TANKLESS
WITH TANK
-
LESS
G.P.H.
MBH
(2)
Steam
MBH
Sq. Ft.
Steam
Round
Square
SFE
-3090S
SFE-3090
ST
0.90
126
106
80
333
6
8"x8"x15'
82.0
SFE
-4125S
SFE-4125
ST
1.25
175
147
110
458
6
8"x8"x15'
82.0
SFE
-5185S
SFE
-5185ST
1.85
259
216
162
675
8
8"x8"x15'
82.0
SFE-6210
S
SFE
-6210ST
2.10
294
247
185
771
8
8"x8"x15'
82.0
NOTES:
(1)
Burner input is based on an oil heating value of 140,000 Btu/gal.
(2)
MBH = 1000 Btu per hour [Btu =British Thermal Unit].
(3)
Net AHRI Steam Ratings based on piping and pick-up allowance of 1.333. Consult manufacturer before selecting boiler for
installations having unusual piping and pick-up requirements, such as intermittent system operation, extensive piping, etc.
(4)
Heating Capacity and AFUE based on 13.0% CO
2
with 0.02"
W.C. draft over fire and #1 smoke or less. Tested in accordance with
U.S. Department of Energy test procedures.
RATINGS, DATA
TANKLESS WATER HEATER CAPACITIES
Boiler Model
Number
Input
Rate
G.P.H.
Tankless
Heater
Number
Tankless
Heater Capacity
Intermittent Draw
G.P.M.
Boiler Water
Content
(Gallons)
To Water
Line
To
LWCO
Line
SFE-3090
ST
0.90
L-24
2
11
8
SFE-4125
ST
1.25
L-24
4½
13
9
SFE
-5185ST
1.85
L-24
4½
15
10
SFE
-6210ST
2.10
L-24
4½
17
11
