• Aluminum-silicon heat exchanger delivers high efficiency - 95% with low temperature applications
• Simple, intelligent control options optimize efficiency and fuel consumption
• Low electrical consumption when the boiler is in standby mode
• Anti-cycle and modulation control
• Special insulation ensures ultra-quiet operation
• Eligible for tax credit where offered
• Eco mode for energy saving fuel consumption
• Exclusive safety feature, keypad safety lock prevents unwanted tampering with the heating controls
• Heat only Greenstar models may be used with indirect water tanks to provide domestic hot water

Space heating boiler for connection to a hot water tank with unsurpassed performance and control. With special insulation to ensure ultra quiet operation and the exclusive keypad safety lock feature to prevent unwanted tampering with heating controls, this unit is the ideal "green" upgrade for detached & terraced houses and is also suitable for apartments.