Greenstar Heatslave II overview

Our Greenstar Heatslave II boiler is the UK's most popular oil combi boiler.

This boiler has a sleek, modern design and is suitable for small, medium and large sized homes with one or two bathrooms.

  • Precise heating and hot water control
  • Smart modern design with controls concealed in a drawer
  • A range of models to meet the needs of smaller homes as well as two bathroom properties
  • Suitable for kitchen installation - fits underneath a standard kitchen worktop
  • Compatible with a range of optional controls for greater efficiency and comfort
  • Works with water heated by green sources such as solar energy and wood fired boilers for increased efficiency.
  • Eco hot water mode saves energy

  • Contact one of our installers and be in with a chance to win £400 worth of Bosch appliances. Terms
Greenstar Heatslave II Greenstar Heatslave II
Greenstar Heatslave II Greenstar Heatslave II

Technical Details

Greenstar Heatslave II 12/18 Greenstar Heatslave II 18/25 Greenstar Heatslave II 25/32
ErP Efficiency Rating
B
A
B
A
B
A
Solar Compatible
Control Options
Central heating output (kW) 18 25 32
Dimensions (mm) height x width x depth 855 x 520 x 600 855 x 520 x 600 855 x 520 x 600
Hot water flow rate (litres per minute) 15 18 22

Related documents

  • Greenstar Heatslave II Combi Internal ErP Operating Instructions Manufactured after 09.01.14

Find a local installer

Each heating system needs custom designing. By using the search feature, you can find and contact a Worcester Accredited Installer in your area to book a home visit.

After calculating the best system for your home, your installer will then come and visit you at home to assess your heating and hot water needs and give you a free estimate.

  • Contact one of our installers and be in with a chance to win £400 worth of Bosch appliances. Terms