3
RATINGS
Boiler Model
Number
Oil Burner Input
(1)
Capacity
MBH
(4)
Net AHRI Ratings
(3)
Min. Natural Draft
Chimney Size
A.F.U.E.
Rating
WITHOUT
TANKLESS
WITH
TANKLESS
G.P.H.
MBH
(2)
Steam
MBH
Sq. Ft.
Steam
Round
Square
KSC -3090S KSC -3090 S T
0.90
126
106
80
333
6
8"x8"x15'
82.0
KSC -4125 S KSC -4125 S T
1.25
175
147
110
458
6
8"x8"x15'
82.0
KSC-5185 S KSC -5185 S T
1.85
259
216
162
675
8
8"x8"x15'
82.0
KSC -6210 S KSC -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 = 15 Amps, 60 Hz
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
KSC -3090 ST
0.90
L-24
2
11
8
KSC -4125S T
1.25
L-24
4½
13
9
KSC -5185S T
1.85
L-24
4½
15
10
KSC -6210 S T
2.10
L-24
4½
17
11
