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Combi Boiler

Flexicom cx

Available in 24, 30, 35kW

    • High Efficiency & NOx Class
    • Optional direct rear flue
    • Fits standard kitchen cupboard
    • Optional glide down plug in timer
    • 2 Year Parts & Labour Warranty
  • Flexicom cx

    Compact and flexible range of condensing combis. The first High Efficiency boiler in the UK with a direct rear flue, cupboard fit** and with optional glide down plug in timer. Available in 24, 30 & 35 kW outputs.

    To replace an old boiler or install a new one with the minimum of fuss, you need one that will fit just about anywhere. That’s why Glow-worm created the Flexicom a High Efficiency condensing boiler that’s so flexible, compact and simple to install it makes your life easy.

    An optional glide down timer provides simple control of the boiler through a plug in timer. One simple push and the clock glides into position. Set the time to your requirements and another gentle push hides the clock from view inside the base of the boiler.

    **Sizes of kitchen cupboards may vary. Please check boiler and cupboard dimensions prior to installations.

    Key Features

    • High Efficiency & NOx Class 5
    • 5 second hot water delivery (measured at tap 1m from boiler)
    • Advanced diagnostics
    • Inbuilt frost protection
    • Pre-fixing jig
    • Optional upward piping kit
    • Optional glide down timer
    • 2 Year Parts & Labour Warranty*

    Optional Extras

    • Glide down analogue timer
    • Upward piping kit
    • Outdoor sensor

    *Glow-worm’s Club Energy installers can offer up to 15 years of warranty. To register to become a Club Energy installer click here.

    To view the Terms & Conditions of the Glow-worm Guarantee please click here.
    Name Download File
    Controls Compatibility Chart PDF (26 KB)
    Flexicom cx Analogue Timer Kit - Installation & User Instructions PDF (1 MB)
    Flue Installation Instructions PDF (5 MB)
    High Efficiency Boiler Range Technical Guide PDF (3 MB)
    System Installation - multi-zone heating PDF (2 MB)
  • Size & Performance

    Casing dimension (h w d)(mm)700x390x280700x390x280700x390x280
    Weight (packed)36kg36kg36kg
  • Performance

    CH output (kW) Min/Max9.3/18.09.3/24.09.3./30.0
    DHW Output (Kw) Min/Max9.3/25.19.3/30.09.3/35.0
    CH Condensing Max output (Kw)18.824.931.0
    DHW Flow Rate I/MIN. 35oC rise9.8512.314.4
    DHW response*5 seconds*5 seconds*5 seconds*
    SEDBUK rating 200590.390.090.2
    SEDBUK rating 200988.488.389.1
    NOx class 5 (natural gas)YesYesYes
    Adjustable to LPGNoNoNo
  • Construction & Installation

    Main heat exchanger typeCastCastCast
    Heat Exchanger materialAluminiumAluminiumAluminium
    Burner TypePre-mixedPre-mixedPre-mixed
    Fully modulatingYesYesYes
    DHW plate heat exchangerYesYesYes
    Integrated hydroblocYesYesYes
    Suitable for sealed systemsYesYesYes
    Suitable for open-vent systemsNoNoNo
    Filling LoopIntegralIntegralIntegral
    Flow restrictorYes 8.7 l/minYes 11.7 l/minYes 14 l/min
    Inbuilt system bypassYes AutomaticYes AutomaticYes Automatic
    Inbuilt Condensate Trap/siphonYesYesYes
    Inbuilt Boiler Frost ProtectionTwo StageTwo StageTwo Stage
    Continua ElectronicsYesYesYes
    Zero compartment VentilationYesYesYes
  • Clearences & User Interface

    Top (mm) (from top of boiler)150150150
    Side (mm)555
    Bottom (mm)150150150
    Front (mm)**600**600**600**
    User Interface
    User display2 Digit LCD2 Digit LCD2 Digit LCD
    User adjustable CH Temp controlYesYesYes
    User adjustable DHW Temp controlYesYesYes
    Eco Setting on DHWYesYesYes
    Optional inbuilt timerN/a N/a N/a
    Optional programmerN/a N/a N/a
    Optional TimerN/a N/a N/a
    Optional Analogue Timer Kit N/a N/a N/a
    Optional Digital Timer Kit N/a N/a N/a
    Pre-fitted analogue timer   
  • Pipes & Flues

    Prefixing jig with DIN LayoutYesYesYes
    Optional Prefixing jig*** N/a N/a N/a
    Optional spacing frameYesYesYes
    Optional rear piping kitN/a N/a N/a
    Water connections2 x 22mm 2 x 15mm2 x 22mm 2 x 15mm2 x 22mm 2 x 15mm
    Max horizontal 60/100 mm8m8m8m
    Max vertical 60/100 mm 8m8m8m
    Max horizontal 80/125 mm20m20m20m
    Max vertical 80/125 mm20m20m20m
    Max direct rear flue0.55m0.55m0.55m
    Optional plume management kit 60/100YesYesYes
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