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Worcester Greenstar 21Ri (ErP) Regular Boiler, Quick-List Pack

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As the smallest of Worcesters condensing boilers, the Greenstar 21Ri regular (heat only or conventional) boiler can be installed out of sight within a standard kitchen cabinet. Used with a heating system that includes stored hot water in a cylinder, its ideal for flats or small houses with one bathroom.

  • Compact dimensions to fit within kitchen cupboard
  • Multi-directional flueing for siting flexibility
  • Fascia-mounted heating temperature control knob
  • Neon operational status indicator
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Manufacturer Product Number
W21RI/QL
Model
RI
Boiler Height
590mm
Boiler Width
390mm
Boiler Depth
270mm
Boiler CH Output (Kw)
21
Boiler CH Output (BTU)
71000
ErP Heating Rating
A Rated for Heating
Manufacturers Warranty
5 Years (Subject to Manufacturers T&C's)
Customer Questions
What are the internal and external sizes of the BoilerBox

Inner - 76.8cm L x 57cm W x 41.5cm H - Outer - 80cm L x 60cm W x 44.5cm H

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Enter product quantities below, then add Quick List to Basket

Grouped product items
Worcester Greenstar 21Ri (ErP) Regular Boiler Only
£1,149.07 £957.56
+ -
Worcester Telescopic 350 mm - 570 mm Horizontal Flue Kit
£102.65 £85.54
+ -
ADEY MagnaClean Micro Black 22 mm System Filter
£58.80 £49.00
+ -
Worcester Long Telescopic Horizontal Flue Kit (570mm - 790mm)
£108.29 £90.24
+ -
Worcester Vertical Flue Kit (inc Adaptor)
£136.49 £113.74
+ -
Worcester Vertical Adaptor
£49.63 £41.36
+ -
Worcester 220mm Short Flue Extension
£30.46 £25.38
+ -
Worcester 960 mm Flue Extension
£54.14 £45.12
+ -
Worcester 2 Metre Flue Extension
£125.21 £104.34
+ -
Worcester 90 Degree Flue Bend
£43.99 £36.66
+ -
Worcester 45 Degree Flue Bends (Pair)
£81.22 £67.68
+ -
Worcester Plume Management Kit
£82.34 £68.62
+ -
Worcester 1 Metre Plume Extension
£28.20 £23.50
+ -
Worcester 90 Degree Plume Bend
£33.84 £28.20
+ -
Worcester 45 Degree Plume Bend (Pair)
£29.33 £24.44
+ -
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Current Quick List Price

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