Comet Electric Combi Boiler

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Comet Electric Combi Boiler Benefits

  • No flue required
  • No fumes and no risk of explosion
  • 100{e0ffbcf462b77e8bb81867f73e24e1ba2ec90e1a5d375f373809c64b5f723c3a} efficient
  • Economic running costs
  • Provide a complete heating and hot water solution

  • Supplied pre-plumbed and pre-wired for ease of installation

  • Maximises use of space and minimises installation work

  • Multiple fail safes fitted

  • Timer and Thermostat supplied for 24/7 controllability

The Comet Electric Combi Boiler offers the comfort and convenience of wet central heating and domestic hot water for domestic properties with no access to mains gas.

It is a fully packaged unit that is housed in an elegant enclosure which is compact in size (height 1745mm, depth 628, width 581mm) and has been designed to fit into a standard domestic airing cupboard. To maximise space and minimise installation the unit has been designed with top entry pipework. This makes it ideal for a range of properties as there are no flue requirements.

The Comet Electric Combi boiler has been designed to come complete with;

  • The option of a 9kW, 12kW or 14.4kW stainless steel heat exchanger;
  • Automatic air vent;
  • High thermal cut out;
  • Digital pressure gauge;
  • Vortex flow sensor;
  • 140 Litre Indirect Stainless Steel Hot Water Cylinder;
  • Pre-plumbed using the ‘S’ Plan configuration
  • In-built magnetic filter for boiler protection;
  • Pre-wired Zone Valves;
  • Expansion Vessels for both Heating and Hot Water circuits;
  • Drain valve, T&P relief valve and Automatic By-Pass;
  • Connection for back up Immersion;
  • Integral system diagnostics.

It is also supplied with an external Tundish and Domestic Hot Water Control Valve and a fully programmable Twin Channel Controller and Room Thermostat to provide full control of both the Central Heating and Domestic Hot Water.

The ‘S’ Plan configuration enables you to select Heating only, Hot Water only or both at the same time.  As the boiler is also heating the Indirect cylinder, the re-heat times for the Hot Water is superior to that of a Direct Cylinder comprising of an Immersion Heater only.

The Combi Boiler has an easy-to-use control panel which allows;

  • both the installer and home owner to identify the operating temperatures on the flow and return, system flow rate and kW output of the boiler at any given time;
  • the installer to utilise the inbuilt self-diagnostic feature during installation or routine maintenance;
  • the operating temperature of the boiler to be adjusted from 40 degrees through to a maximum 85 degrees.

The digital pressure sensor within the unit allows you to take an accurate reading of the system pressure at all times.

9kW 12kW 14.4kW
Rated Power kW 9 12 14.4
Rated Voltage  V 240 240 240
Load Current A 39.1 52.2 62.6
Fuse Rated Current A 50 63 80
Min. Permitted Cable Diameter mm² 10 16 16
Safety Class IP22 IP22 IP22
Heating Output BTU 30726 40968 49161
Primary Flow & Return Pipes mm 22 22 22
Min Primary Water Pressure Bar 1.0 1.0 1.0
Primary Relief Valve Pressure Bar 3.0 3.0 3.0
Primary Expansion Vessel Litre 12 12 12
Primary Expansion Vessel Pressure Bar 1.5 1.5 1.5
Max Primary Flow Temp ºC 80 80 80
Min Primary Flow Temp ºC 40 40 40
Overheat Protection ºC 100 100 100
Max Water Supply Pressure Bar 10 10 10
Cylinder Operating Pressure (Secondary) Bar 3 3 3
Cylinder operating Pressure (Primary Max) Bar 2.5 2.5 2.5
Cylinder Operating Pressure (Secondary Max) Bar 5.5 5.5 5.5
Secondary Relief Valve Pressure Bar 6 6 6
DHW Temperature ºC 5-66 5-66 5-66
DHW Capacity Ltr 144 144 144
Temp & Pressure Relief Valve ºC 95ºC/7 Bar 95ºC/7 Bar 95ºC/7 Bar
Secondary Expansion Vessel Ltr 12 12 12
Secondary Expansion Vessel Pressure Bar 3 3 3
Hot & Cold Connections mm 22 22 22
Dimensions mm    1745 x 580 x 630   1745 x 580 x 630   1745 x 580 x 630
Net Weight kg 106.8 106.8 106.8
Gross Weight kg 246 246 246

Note; On systems volumes greater than 120L an additional external expansion vessel will be required.

DHW Recovery Times

Model 15ºC to 55ºC 15º to 72ºC
9kW 44 min 62 min
12kW 36 min 57 min
14.4kW 29 min 45 min

To comply with safety and public health regulations the Stainless Steel Cylinder included within the Comet Electric Combi boiler is WRAS approved.

Safety is paramount for EHC so the Comet Electric Combi Boiler comes with a high current thermal cut-out and other built in safety features.

The Comet Electric Combi boiler carries a 2-year guarantee and the Stainless Steel Cylinder a 10-year guarantee (subject to the Manufacturers Terms & Conditions).