Worcester Bosch Greenstar Heatslave II 18/25 Indoor… (436JK)

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Worcester Bosch Greenstar Heatslave II 18/25 Indoor Oil Combi Boiler (436JK)

All Boilers and Boiler Accessories must be installed by a Qualified Gas Safe Registered professional. Unfortunately this product cannot be delivered offshore. We cannot accept the return of unwanted boilers if the box/packaging has been opened (your statutory rights are not affected).

Sleek, modern design. Suitable for small, medium and large-sized homes with one or 2 bathrooms. Fits underneath a standard kitchen worktop.

  • Max. Domestic Hot Water Output: 25kW
  • Max. Central Heating Output: 25kW
  • Stainless Steel Heat Exchanger
  • Top, Side or Rear Flue Outlet
  • Compatible with Greenskies Solar Panels
  • 2 Year Manufacturer’s Guarantee (Registration Required, T&Cs Apply)
  • 73,361BTU
  • Backlit Digital Display
  • Precise Heating & Hot Water Control
  • Concealed Controls

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£2469.99INC VAT

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Worcester Bosch Greenstar Heatslave II 18/25 Indoor Oil Combi Boiler is rated 5.0 out of 5 by 1.
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Rated 5 out of 5 by from Great Boiler A big improvement on the previous 16 year old Worcester Bosch oil boiler it replaced. More efficient and more controllable and looks a lot nicer also
Date published: 2020-10-15
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Which flue kit and controller go with this Worcester heatslave 18/25 indoor combi boiler?

Asked by: Plutie
The horizontal flue kit is 7716190064 (590JK) and the vertical flue is 7731600218 (901JK). Suitable programmers would be either the Comfort I RF 7733600001 (4330J) or Comfort II RF 7733600002 (3993J).
Answered by: Worcester Bosch
Date published: 2021-04-28
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  • bvseo-msg: BV SEO Content for this product did not include verbose reviews.;
Specification
Boiler Depth 600 mm
Boiler Height 855 mm
Boiler Type Combi
Boiler Width 520 mm
Brand Worcester Bosch
BTU 73,361 BTU
CALC - Fuel Type Oil
Colour White
Compatible with Solar Panels Compatible with Greenskies Solar Panels
Display Type Backlit Digital Display
Energy Rating (Heating) A
Energy Rating (Water) B
Filling Loop Supplied Filling Loop Not Supplied
Fitting Requirements Installers Must be Registered with a Government Approved Competent Persons Scheme
Fixing Jig Supplied Fixing Jig Not Supplied
Flow Rate (Ltr/Min) 18 Ltr/min
Flue Connection Diameter 80 / 125 mm
Flue Outlet Position Top, Side or Rear Flue Outlet
Flue Supplied Flue Not Supplied
Frost Protection Frost Protection
Fuel Type Oil
Indoor/Outdoor Usage Indoor
Manufacturer Guarantee 2 Year Manufacturer’s Guarantee (Registration Required, T&Cs Apply)
Max. Heat Output CH (Pn) 25 kW
Max. Heat Output DHW (Pn) 25 kW
Model Name/No Greenstar Heatslave II 18/25
Pack Size 1
Parent Colour White
Pieces in Pack/Case 1
Product Returns Note We cannot accept the return of unwanted boilers if the box/packaging has been opened (your statutory rights are not affected).
Product Type Boiler
Range Name Greenstar Heatslave
SAP Seasonal Efficiency 88.9 %
Sound Pressure Level 56 dB
Suitable for Underfloor Heating Suitable for Underfloor Heating
Supplier Manufacturer Helpline 0330 123 3366
Temperature Range (Heating) 50 to 82 °C
Temperature Range (Water) 40 to 60 °C
Total Product Weight 142 kg

*Delivered direct from our suppliers in the number of working days stated on the delivery button