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Comet Boiler & Direct Cylinder Packages

Boiler outputs from 9kW to 14.4kW and Cylinder capacities from 150L to 210L

Comet Electric Boiler & Cylinder Heatpacks are designed to reduce installation time and eliminate unnecessary external plumbing and pipe work. This value-for-money package includes a Comet Electric Boiler and a Direct Stainless Steel Cylinder complete with a Boiler Pack designed for Heating and Domestic Hot Water installations.

Comet Electric Boiler Packages are available with single phase Boilers from 9kW to 14.4kW with a choice of Direct Stainless Steel Cylinders from 150L to 210L. An Electric Boiler on a wet central heating system presents all the controllability offered by a gas fired central heating system. Using standard pipe-work, conventional wet system radiators and thermostatic radiator valves the boiler, being 100% efficient and fully modulating, will take the same amount of time to heat the property as a gas boiler. As no flue is involved and no gas analysis is required the installation of the system will be a lot quicker than that of a gas system boiler.

Our single phase Electric System Boiler outputs are 9kW, 12kW with the 14.4kW available for properties that require larger outputs.

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Shop Comet Direct Cylinder Packages online


Comet Features

  • 100% efficient
  • Integral sealed system kit
  • Virtually silent in operation
  • Suitable for central heating only or central heating & hot water
  • Suitable for Underfloor Heating
  • 6 Stage Heating
  • Stainless Steel Heat Exchanger
  • 5 Year Warranty (T&C’s Apply)
  • Volt-Free Control Connections
  • Integral System Diagnostics
  • Easy-Fit Connectors & Sensors
  • In-Built Fault Finding Diagnostics
  • High Current Thermal Cut-Out
  • Vortex Flow Temperature Sensor
  • Digital Pressure Gauge
  • ErP Smart Pump
  • Removable bottom tray

What's Included - Choice of Electric Boiler & Direct Stainless Steel Cylinder


  • Single Channel Programmer
  • Room Thermostat
  • DHW Programmer
  • Temperature & Pressure Relief Valve
  • Inlet Control Set
  • 15mm / 22mm Tundish
  • 2 x 3kW Immersion Heaters
  • Filling Loop


  • DHW Expansion Vessel
  • Auto Air Vent
  • High Quality ErP Smart Pump
  • Lockshield Pump Valves
  • Installation & Maintenance Instructions
  • Benchmark Logbook

Direct Cylinder Features

    • ErP C-Rated Hot Water Cylinder – 120L to 210L
    • 50mm Insulation
    • DHW Expansion Vessel
    • Inlet Control Set
    • T&P Relief Valve
    • 2 x 3kW Immersion Heater

If a property has a bath then it is likely that a hot water cylinder will be required. For properties requiring large amounts of Domestic Hot Water you may wish to consider our Indirect Cylinder range which will re-heat quicker than a Direct Cylinder with a 3kW Immersion Heater.


MagnaClean Professional3 Sense® filter

Upgrade Your Heating System with MagnaClean Professional3 Sense® Filter: Improve Efficiency and Extend Lifespan of your Electric Boiler. Combat the #1 cause of heating system breakdown in the UK by maintaining clean water. Enhance your system’s performance and lower running costs with this advanced filtration solution.

Enjoy the added benefit of SMART connectivity, receiving alerts for system water changes, keeping you proactive in preserving efficiency and preventing breakdowns caused by contaminated water. This optional extra removes both magnetic and non-magnetic debris, safeguarding your heating system from clogs and ensuring smooth, efficient operation.

Choose the MagnaClean Professional3 Sense Filter for your Electric Boiler and experience the following advantages:

  • Protect the working components in your Electric Boiler by effectively removing black iron oxide or sludge.
  • Maintain peak efficiency throughout the entire lifespan of your Electric Boiler.
  • Continuously monitor water quality, minimizing efficiency fluctuations and reducing the risk of breakdowns due to dirty water.
  • Stay informed with quarterly reports on water quality, enabling timely action to address any issues.

Explore the optional upgrade of the MagnaClean Professional3 Sense® Filter below and elevate the performance and longevity of your heating system.

Shop Now

Pro3 Transparent

EHC - The Electric Boiler Specialists

  • Installation is quicker than a gas system
  • The wiring of an Electric Boiler is the same as an Electric Shower
  • Electric Boilers can be used for Open Vented Systems
  • Can be used as back-up for Heat Pumps
  • Standard radiators and valves can be used with Electric Boilers
  • EHC Electric Boilers have a soft start to avoid power surges
  • Electric Boilers are almost silent when operating
  • Electric Boilers emit no noxious fumes or gases
  • Can be used with underfloor heating systems
  • EHC only use and recommend High Efficiency ErP Smart Pumps



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© 2023 The Electric Heating Company Ltd

Company Number: SC289495

VAT Number: GB442070921

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01698 820533


Block 5, Unit 40, Third Road, Blantyre Industrial Estate, Blantyre, South Lanarkshire G72 0UP
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