No Flue Needed
Boilers Slim Jim Electric

Boilers Slim Jim Electric

SKU: EHCSJIM
  • From £791.20
  • (FREE UK Delivery)
  • RRP £953.26
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SlimJim Electric Flow Boiler

Compact, efficient, and installer-friendly — the SlimJim is designed for seamless integration into any home heating setup.

 

  • Easy installation & maintenance — front-access panel and intuitive controls
  • 100% energy efficient — no flue, no waste, just pure electric heat
  • Built-in safety — dry-run sensor and high-current cut-out protect the system
  • Flexible heating — adjustable from 30°C to 80°C for radiators or underfloor systems
  • Installer-ready diagnostics — clear fault indicators for fast servicing
  • Versatile options — available as a standalone unit or with heating/DHW packs

Ideal for space-saving installations and reliable, low-maintenance performance.

Boiler Specifications
EHCSJIM14.4KW Height 912 mm
EHCSJIM14.4KW Width 203 mm
EHCSJIM14.4KW Depth 172 mm
EHCSJIM14.4KW Weight 11 Kg
EHCSJIM14.4KW Circuit Protection 63 Amps
EHCSJIM14.4KW Minimum Cable Size 10 mm
EHCSJIM14.4KW Load Current 60 Amps
EHCSJIM14.4KW Voltage 240 V
EHCSJIM14.4KW BTU Output 49134
EHCSJIM14.4KW Temperature Range 30/80 °C
EHCSJIM14.4KW Wattage 14.4 kW
EHCSJIM14.4KW ERP Rating D
EHCSJIM14.4KW Boiler Warranty 5 Years*
EHCSJIM12KW Height 912 mm
EHCSJIM12KW Width 203 mm
EHCSJIM12KW Depth 172 mm
EHCSJIM12KW Weight 11 Kg
EHCSJIM12KW Circuit Protection 63 Amps
EHCSJIM12KW Minimum Cable Size 10 mm
EHCSJIM12KW Load Current 50 Amps
EHCSJIM12KW Voltage 240 V
EHCSJIM12KW BTU Output 40945
EHCSJIM12KW Temperature Range 30/80 °C
EHCSJIM12KW Wattage 12 kW
EHCSJIM12KW ERP Rating D
EHCSJIM12KW Boiler Warranty 5 Years*
EHCSJIM4KW Height 912 mm
EHCSJIM4KW Width 203 mm
EHCSJIM4KW Depth 172 mm
EHCSJIM4KW Weight 11 Kg
EHCSJIM4KW Circuit Protection 20 Amps
EHCSJIM4KW Minimum Cable Size 6 mm
EHCSJIM4KW Load Current 17 Amps
EHCSJIM4KW Voltage 240 V
EHCSJIM4KW BTU Output 13648
EHCSJIM4KW Temperature Range 30/80 °C
EHCSJIM4KW Wattage 4 kW
EHCSJIM4KW ERP Rating D
EHCSJIM4KW Boiler Warranty 5 Years*
EHCSJIM7KW Height 912 mm
EHCSJIM7KW Width 203 mm
EHCSJIM7KW Depth 172 mm
EHCSJIM7KW Weight 11 Kg
EHCSJIM7KW Circuit Protection 40 Amps
EHCSJIM7KW Minimum Cable Size 10 mm
EHCSJIM7KW Load Current 29 Amps
EHCSJIM7KW Voltage 240 V
EHCSJIM7KW BTU Output 23884
EHCSJIM7KW Temperature Range 30/80 °C
EHCSJIM7KW Wattage 7 kW
EHCSJIM7KW ERP Rating D
EHCSJIM7KW Boiler Warranty 5 Years*
EHCSJIM10KW Height 912 mm
EHCSJIM10KW Width 203 mm
EHCSJIM10KW Depth 172 mm
EHCSJIM10KW Weight 11 Kg
EHCSJIM10KW Circuit Protection 50 Amps
EHCSJIM10KW Minimum Cable Size 10 mm
EHCSJIM10KW Load Current 42 Amps
EHCSJIM10KW Voltage 240 V
EHCSJIM10KW BTU Output 34121
EHCSJIM10KW Temperature Range 30/80 °C
EHCSJIM10KW Wattage 10 kW
EHCSJIM10KW ERP Rating D
EHCSJIM10KW Boiler Warranty 5 Years*

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Top Class Reputation
Delivering successful electric heating solutions for two decades
Top Class Reputation
Delivering successful electric heating solutions for two decades
Top Class Reputation
Delivering successful electric heating solutions for two decades
Reputation
Bespoke Customer Service
Ensuring your purchase meets your requirements
Bespoke Customer Service
Ensuring your purchase meets your requirements
Bespoke Customer Service
Ensuring your purchase meets your requirements
Customer Service
Innovation & Design
All our products are easy to operate and 100% efficient
Innovation & Design
All our products are easy to operate and 100% efficient
Innovation & Design
All our products are easy to operate and 100% efficient
Innovation
Extended Warranties
Extended warranty options for your peace of mind
Extended Warranties
Extended warranty options for your peace of mind
Extended Warranties
Extended warranty options for your peace of mind
Warranty