Comet Electric System Boilers are designed to eliminate unnecessary external plumbing and pipe work. They are the ideal choice for wet central heating and underfloor heating systems.

All Comet Boilers can be installed for Heating only or Heating and Domestic Hot Water purposes when used with an 'S' Plan configuration in conjunction with the EHC Twin Channel Heatpack.

To ensure maximum efficiency, all Comet Boilers incorporate six stage heating using a stainless steel heat exchanger. This unique facility will modulate the Boiler to reduce electricity consumption and running costs.

The Comet System Boiler has been engineered to include the pump, auto-air vent, expansion vessel, auto-bypass and expansion vessel within the compact casing. For added safety the Boiler also incorporates a High Current Thermal cut-out for added protection.

The easy-to-use control panel provides operating temperatures for flow and return, system flow rate and kW output information and enables the installer to utilise the inbuilt self-diagnostic feature during installation or routine maintenance.

The operating temperature of the Boiler can be adjusted from 20°C-85°C.



• Comet Electric System Boilers are designed to eliminate unnecessary external plumbing and pipe work. They are the ideal choice for wet central heating and underfloor heating systems
• Our single phase Electric System Boiler outputs are 6kW, 9kW, 12kW with the 14.4kW available for properties that require larger outputs
• To ensure maximum efficiency, all Comet Boilers incorporate six stage heating using a stainless steel heat exchanger. This unique facility will modulate the Boiler to reduce electricity consumption and running costs


Unfortunately due to the nature of the products and for safety reasons, we cannot accept returns on unwanted boilers (your statutory rights are not affected).



The boiler manufacturers have dedicated helplines to offer support where required. Please refer to the helpline numbers in your installation manual, or our after sales page for further details.

This item will be delivered directly by our supplier. Lead times are shown on the product and trolley pages and are always advertised in working days (Monday to Friday).

• If your order contains items stocked by us and items that come direct from the supplier, your order will be automatically split and processed accordingly.
• We will pass the details you give us, including delivery details, your email address and your phone number, to the relevant supplier.
• Most of our suppliers can deliver to any UK address. Delivery to remote or offshore postcodes may take a little longer than the advertised lead time. If the supplier cannot deliver to your postcode or we believe your order may take longer, we will try to tell you beforehand.
• Items that come direct from a supplier will be delivered by the courier chosen by the supplier. Where possible, suppliers will update you with delivery information. This may be by email, phone call or text message.
• Items delivered direct from suppliers cannot be returned through a store. You would need to return these items direct to the supplier, unused and in their original packaging, at your expense. You can arrange for most items to be collected by contacting our Customer Services team. A fee of £9* will be taken off your refund. There is no charge for faulty items being collected. *For big and bulky items, additional charges may apply.
• Please note, you cannot return bespoke or made-to-measure items unless they are faulty.