The Slim Jim is an electric only regular boiler. Its designed for use with conventional open vented hot water cylinders, but can also be used on sealed unvented systems if fitted with the Slim Jim Unvented Kit (not supplied).

• For use with open vented cylinders
• Can be converted for use with unvented cylinders (extra kit required)
• Suitable for use with standard wet radiators
• Built-in control panel
• Fully modulating
• 6 stage heating
• Easy to install
• 100% Efficient
• No flue or fuel tanks required
• Silent in operation
• Maintenance free
• Stainless Steel Heat Exchanger
• Stainless Steel Heating Elements
• Fully modulating boiler with 6 stage heating
• No mandatory boiler servicing required
• Soft start approach to avoid power surges
• Can be used with standard radiators and thermostatic valves
• Adjustable control to set boiler temperature
• In-built fault finding diagnostics