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Powerstream Professional
Central Heating, Underfloor and Hot Water Flow Boilers
This electric flow boiler provides a versatile and safe way of heating water, where there’s mains electricity. Suitable
for vented and unvented wet central heating, underfloor heating and domestic hot water, Powerstream Professional
can be used instead of Gas, Oil, Propane, Solid Fuel or Electric Storage heating*. 99% efficient, this boiler is
highly flexible as no servicing, safety checks or flue are needed.
49 Inlet
7 power options (2kW - 12kW) I Compact design
fits in most spaces (including kitchen cupboards)
I Solid state technology for long life I No moving
parts, maximum reliability I Minimal service and
maintenance costs I Suitable for sealed and open
vented systems with radiators or underfloor heating
I Uses standard radiators, programmer, pump, room
stat and thermostatic radiator valves I Thermostatic
range 30°C to 55°C (underfloor) or 55°C to 80°C
(central heating).
116mm
Key Features
Dimensions
69 Outlet
Central heating, underfloor heating and hot water.
396mm
Application
86
238mm
386mm
Safety Features Min/max control adjusts the temperature I No flue
and no fuel tanks give a safe and flexible installation.
Min.
Max.
Technical
Specification
Thermostatic temperature range 30°C to 55°C (underfloor) or 55°C to
80°C (central heating) I UK manufactured in a BS EN ISO 9001:2000
registered factory.
Rating
2kW, 4kW, 6kW, 7.5kW, 9kW, 10.5kW &
12kW (240V).
Element
Copper sheathed.
Outer Casing
White stove-enamelled corrosion-resistant steel.
Pressure
Operating pressure 0.5bar - 3bar.
Approvals
BEAB Approved I CE.
Boiler
variant
RFB2
RFB4
RFB6
RFB75
RFB9
RFB105
RFB12
Guarantee
2 year product guarantee (UK).
Product Range
Temp.
range
30 - 80
30 - 80
30 - 80
30 - 80
30 - 80
30 - 80
30 - 80
BTU
output
6830
13660
20490
25613
30735
35860
40980
Product Reference
Powerstream Pro 2kW
Powerstream Pro 4kW
Powerstream Pro 6kW
Powerstream Pro 7.5kW
Powerstream Pro 9kW
Powerstream Pro 10.5kW
Powerstream Pro 12kW
*Building Regulations apply.
kW loading
@ 230-240V
1.8 - 2
3.7 - 4
5.5 - 6
6.9 - 7.5
8.3 - 9
9.6 - 10.5
11 - 12
Cable size
guide
1.5mm2
2.5 / 4mm2
4mm2
4 / 6mm2
6 / 10mm2
6 / 10mm2
10mm2
Short Code
RFB2
RFB4
RFB6
RFB75
RFB9
RFB105
RFB12
Fuse rating
guide
13 Amps
20 Amps
30 Amps
35 - 40 A
40 - 45 A
45 Amps
50 Amps
Cat. No
45670202
45670204
45670206
45670207
45670209
45670210
45670212