• Compact design is ideal for heating applications where space is at a premium
• Designed to maximise cupboard space
• The temperature range can be set between 30° and 80° which also makes it a suitable choice for wet central heating radiators and underfloor heating systems
• Safety is of paramount importance and as such the Boiler incorporates a unique high current safety cut-out device to protect the Boiler against overheating
• 100% efficient, silent in operation and easy to install
• In-built fault finding diagnostics



The compact design of the SlimJim Electric Flow Boiler makes it ideal for heating applications where space is at a premium. The Slim Jim is a fully controllable Electric Boiler which is designed to maximise cupboard space.

The SlimJim Boiler can be used in an 'S' Plan configuration to enable you to select Heating only, Hot Water only or both at the same time. It is efficient, silent in operation and easy to install.

The SlimJim Electric Flow Boiler also has an easy-fit front cover for future maintenance purposes. It has a user-friendly front Control Panel incorporating an easy-to-use temperature control dial, heat and fault diagnostic indicators for the user and installer.

The unique 'Run-Dry Water Level Sensor' incorporated within the SlimJim Boiler protects the heat exchanger from running dry due to system water loss. The Stainless Steel heat exchanger is fully insulated to minimise energy heatloss.

The Boiler temperature range can be set between 30°C-80°C, which also makes it a suitable choice for wet central heating radiators and underfloor heating systems.

Safety is of paramount importance and as such the Boiler incorporates a unique, high current safety cut-out device to protect the Boiler against overheating.

SLIM JIM install packs also available (code 86302), (code 40880).

• The compact design makes it ideal for heating applications where space is at a premium
• Designed to maximise cupboard space
• Available outputs are 4kW, 7kW, 10kW, 12kW with the 14.4kW available for properties that require larger outputs
• The temperature range can be set between 30 degrees and 80 degrees which also makes it a suitable choice for wet central heating radiators and underfloor heating systems
• Safety is of paramount importance and as such the Boiler incorporates a unique high current safety cut-out device to protect the Boiler against overheating
• 100% efficient, silent in operation and easy to install
• In-Built Fault Finding Diagnostics


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.