The Greenstar Heatslave II boiler is the UK’s most popular oil combi boiler.

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

The boiler has precise heating and hot water control with a smart modern design with controls concealed in a drawer. It has a range of models to meet the needs of smaller homes as well as two bathroom properties and is suitable for kitchen installation. (It fits underneath a standard kitchen worktop. Worktop must be removable.)

It is 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 and the eco hot water mode saves energy.

The online reviews are in for the Greenstar Heatslave II;

‘After nearly a year my 2023 Heatslave 18/25 combi boiler has been reliable and efficient in it’s use of oil.’

‘Installed Worcester Bosch Greenstar Heatslave II External 18/25 oil fired boiler last year. To date it has worked flawlessly, and provided excellent service.’

‘The Worcester Bosch Greenstar Heatslave II External boiler is superb, we had the extras fitted (Greenstar Comfort II RF, system filter), very efficient and simple to use.’