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StelflowTwin

Twin Coil Stelflow Cylinder

The Stelflow Twin Coil presents the opportunity to combine multiple heat sources into one unit, primarily designed to work with solar thermal the unit can also be upgraded with minimal additional components to accept two boiler inputs. The twin coil unit takes advantage of two high efficiency coil in coil heat exchangers for maximum performance, it is also even possible to link these two together to give one much larger heat exchanger coils.

  • Description
  • Technical Data
  • Tapping Heights

Product Description

The Stelflow Twin Coil unit has been developed to give homeowners with gas boilers the opportunity to capitalise on Solar Thermal technologies. In the age of growing fuel bills, the RM Twin Coil presents a real option to help save homeowners money and reduce their carbon footprint thus safeguarding the future of the planet. Built to RM’s usual exacting standards the Solar Direct is a perfect compliment to your gas boiler.

Kit Includes:

Product
150T
180T
210T
250T
300T
Capacity
150L
180L
210L
250L
300L
Height (mm)
1100
1280
1470
1720
1980
Diameter (mm)
545
545
545
545
545
Weight Empty (kg)
34
36
40
46
55
Weight Full (kg)
181
213
274
293
353
Indirect Reheat (mins)
17
20
22
25
34
Immersion Reheat (mins)
57
80
93
113
139
Heat Exchanger (kW)
16.46
18.55
18.55
22
22
Solar Volume (L)
77L
95L
101L
107L
121L
Standing Loss (kWh/day)
1.41
1.53
1.8
2.15
2.28
ErP Band
C
C
C
C
C
Product
150T
180T
210T
250T
300T
Cold Inlet
195
195
195
195
195
Bottom Coil
310
310
370
370
370
Stat Pocket
365
365
420
420
420
Top Coil
660
665
780
855
990
Immersion
705
725
835
905
1035
Stat Pocket
765
775
890
970
1095
Secondary Return
-
-
1155
1400
1615
T&P Valve
900
1070
1265
1510
1785