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Worcester Greenstar Utility Condensing Oil Boiler 18/25 kW

1510.91 inc VAT
2235.00 SAVE: 724.09
Not Available  Out Of Stock
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  • Reference:
  • Brand: Worcester Bosch
  • Manufacturer Reference: 7 716 100 101
  • Delivery: Approx 3 Working Days
  • Condition: New
  • 2 years guarantee
  • Highest Trustscore

Code Description Inc. VAT Excl. VAT

Horizontal Fluing

Worcester Oilfit 80/125 Standard RS Flue Kit (PW7716190064) 163.30 (136.08 exc. VAT)
Worcester Oilfit 80/125 Vertical BF Flue Kit (PW7716190032) 259.06 (215.88 exc. VAT)

Roof Flashing Kit


Worcester Oilfit 80/125 90 Degree Elbow (PW7716190034) 61.49 (51.24 exc. VAT)
Worcester Oilfit 80/125 45 Degree Bends (Pair) (PW7716190035) 73.58 (61.32 exc. VAT)


Honeywell Wireless Programmable Thermostat CM927 (311940) 147.58 (122.98 exc. VAT)

Fire Valves

Tiger Loop Oil De-Aerator

Protect your Central Heating System with Magnaclean

Resolve Central Heating Care

The Greenstar Utility 18/25 Boiler is an economical appliance finished in a durable white casing. Within the cabinet are the temperature controller and re-set buttons however, there is no position to install the optional timer, only external controls can be used.

If you are upgrading a system or replacing an existing system in a small or medium sized property the Worcester Greenstar Utility 18/25 Condensing boiler is ideal for households with a preference for stored hot water.

The Greenstar Utility 18/25 Condensing Gas Boiler can be installed most beneficially where space and water storage are a problem. Designed for siting within a kitchen or utility room.

Rated as SEDBUK A - this boiler is designed to serve central heating and hot water requirements ranging from 18 to 25kW

Designed to fit neatly neatly between standard kitchen units and so ideally suited to both Kitchen or Utility Room installation.
Worcester Bosch Utility Diagram Dimensions
Boiler Output 18 to 25kW
(61,400 to 85,300 Btu/h)
Flue Gas Temp. Below 100°C
Oil Burner Bentone Sterling 50
Oil burner Suitable for 28 sec
Kerosene Oil only
Lift Weight 119kg
Height (A) 855mm
Width (B) 370mm
Depth (C) 600mm

Although clearance above the Greenstar Utility Boiler Range is stated to be 300mm, a removable worktop may be placed directly above the boiler, allowing for 5mm clearance.

$further_information_anchor Further Information and Product Manuals
This boiler will require a Flue Kit and a Programmer. We have pre-checked the Horizontal Flue Kit and 7 Day External Programmer Below for your convenience.

Worcester Greenstar Utility Condensing Oil Boiler 18/25 kW

Not Available  Out Of Stock

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