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Greenstar Heatslave 25/32 (discontinued Sept 2013)

Greenstar Heatslave boiler
Greenstar Heatslave boiler


The Greenstar Heatslave combi oil boilers are suitable for installing in a kitchen. They have a pre-heated thermal store which provides you with instant hot water.

As floor standing boilers they can be installed under a removable worktop, provided there’s enough access for clearance and maintenance.

They are compatible with an optional plug-in time clock.

Central heating output: 25-32kW
Domestic hot water flow rate: 22 litres per minute at 35 degree temperature rise.


  • The ErP Directive is a new EU regulation designed to drive improvements in the efficiency of heating and hot water products. Most boilers will fall within the A band, meaning they achieve more than 90% seasonal efficiency, while renewable technologies such as heat pumps will likely be in the A+ or A++ bands.
  • EST registeredThis boiler is registered with the Energy Saving Trust.
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Features and benefits

  • Best official boiler efficiency rating (SEDBUK band A)
  • 5 year guarantee on primary heat exchanger
  • 10 year guarantee on secondary heat exchanger
  • Pre-heated thermal store – instantly heated hot water
  • Optional fascia mounted programmer
  • Robust quality manufacture

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