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StelflowIndirect

Indirect Stelflow Cylinder

The Stelflow Indirect is the most popular unvented cylinder, built to work in conjunction with any indirect thermostatically controlled heat source such as a gas boiler. The performance from our top of the range high efficiency coil in coil inside our indirect Stelflow's cannot be replicated by any other method.

  • Description
  • Technical Data
  • Tapping Heights

Product Description

The Stelflow Indirect is the mainstay of the RM catalogue. Installed time and time again the unit is a competent and reliable companion for any standard boiler. The high efficiency, quick recovery coils make this cylinder perfect for even the busiest homes, ensuring long lasting hot water stores in a unit that has been built to last.

Kit Includes:

Product
90I
120I
150I
180I
210I
250I
300I
250FI
300FI
Capacity
90L
120L
150L
180L
210L
250L
300L
250L
300L
Height (mm)
720
900
1100
1280
1470
1720
1980
1430
1640
Diameter (mm)
545
545
545
545
545
545
545
590
590
Weight Empty (kg)
21
25
29
33
37
43
50
43
50
Weight Full (kg)
109
143
177
211
245
291
347
291
347
Indirect Reheat (mins)
12
16
17
20
22
25
34
25
34
Immersion Reheat (mins)
53
80
106
136
167
213
285
213
285
Heat Exchanger (kW)
16.46
16.46
18.55
18.55
18.55
22
22
22
22
Standing Loss (kWh/day)
1.07
1.23
1.41
1.53
1.8
2.15
2.28
2.15
2.28
ErP Band
C
C
C
C
C
C
C
C
C
Product
90I
120I
150I
180I
210I
250I
300I
250FI
300FI
Cold Inlet
195
195
195
195
195
195
195
195
195
Bottom Coil
305
305
340
340
365
365
365
412
412
Immersion 1
345
345
380
380
410
410
410
452
452
Stat Pocket
360
360
395
395
475
475
475
502
502
Immersion 2
-
-
-
-
-
965
980
1030
1080
Secondary Return
-
-
-
-
1160
1410
1605
1180
1280
T&P Valve
525
710
890
1085
1265
1520
1780
1205
1416