Utility HEE Combi

The UK & Ireland’s only AA rated combination oil boiler.

Warmflow combination boilers provide excellent hot water performance and rapid response to hot water demand due to their large thermal store and high output plate exchanger. 

All Warmflow combination boilers are factory fitted with a low pressure switch as standard, providing protection against damage in the event of water loss from the system.

Purchase Info
Warmflow Oil Boilers, UK, Ireland, Northern Ireland Utility HEE Combi Oil Boiler Featured

Key Features

  • New Control PCB with integrated relays
  • Honeywell diverter valve and quick release actuator along with single Grundfos circulating pump to remove non-return valves
  • Factory fitted frost thermostat and low pressure switch
  • Factory fitted inlet strainer
  • Single point wiring connections
  • Riello RDB2.2
  • Optional 7-day Digital Programmer for mounting within the boiler casing
  • 3 bar pressure relief valve & automatic air vents

Good to know

Warmflow takes pride in being a company with a reputation for producing quality products that are easy to install and maintain. Our HEE range, incorporating a unique, patented, easy clean, front servicing secondary heat exchanger, aligns with this philosophy.

All HEE boilers are suitable for use on conventional flues or low-level, high-level and vertical balanced flues using the ‘Easy-fit’ flue system. 

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Boiler Stats

  • UC70HEE
    UC90HEE
    UC120HEE
  • Outputs KW
    15-21
    21-26
    26-33
  • Flue Options
    Left, right or rear low-level conventional flue, optional top outlet
    Left, right or rear low-level conventional flue, optional top outlet
    Left, right or rear low-level conventional flue, optional top outlet
  • Conventional Flue Size (mm)
    80/125
    80/125
    80/125
  • ErP Rating heat icon
  • ErP Rating heat icon
  • Width (mm)
    595
    595
    595
  • Height (mm)
    865
    865
    865
  • Depth (mm)
    600
    600
    600
  • Services Access
    Front / Top
    Front / Top
    Front / Top
  • Condensate Trap
    Factory Fitted
    Factory Fitted
    Factory Fitted
  • Hot Water Flow Rate (L/min)
    n/a
    n/a
    n/a

View our U-Series range

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Warmflow Oil Boilers, UK, Ireland, Northern Ireland Utility HEE Combi Oil Boiler Featured

Utility HEE Combi

The UK & Ireland’s only AA rated combination oil boiler.

View >