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Slim Jim Electric Flow Boiler

Slim Jim Electric Flow Boiler

RRP: £1,162.79£695.99

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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
Estimated Delivery Time2-3 Working Days
Warranty (Years)2
Width (mm)203
Height (mm)912
Depth (mm)172
Weight (Kg)11
MountingWall Mounted
NameProduct CodePrice
Slim Jim Electric Flow Boiler, 4kw1206£695.99
Slim Jim Electric Flow Boiler, 7kw1207£718.99
Slim Jim Electric Flow Boiler, 10kw1813£731.99
Slim Jim Electric Flow Boiler, 12kw1811£769.99
Slim Jim Electric Flow Boiler, 14.4kw1812£806.99

Delivery options

At The Underfloor Heating Store, we strive to make every step of your order as easy and convenient as possible, from finding the right underfloor heating setup to best suit you to taking delivery of your system the very next day.

We're proud to offer a range of delivery options to suit you, including free delivery on all of our orders or next working day delivery for a fixed price of £4.99.

Our delivery options

  • 2-3 Working Days (3-5 working days on wet room and energy efficiency products)
  • FREE
  • Next Working Day
  • £4.99 (order before 4pm, Monday to Friday)
  • Next Working Day Before 10.30am
  • £14.99 (order before 4pm, Monday to Friday)
  • Saturday Delivery
  • £29.99 (order before 4pm on Friday)