Technical data
4
The Greenstar FS CDi Regular series is part of a market 
leading range of energy-saving condensing floor standing 
gas-fired boilers.
Higher efficiency therefore highly cost effective
All of the new Greenstar FS CDi Regular condensing boilers 
are SEDBUK A rated. This means they have an average 
annual efficiency of over 90%, standard efficiently boilers 
achieve around 78% efficiency. Therefore by upgrading to 
a Greenstar FS CDi Regular boiler, consumers can reduce 
their gas bills as well as their carbon footprint.
Greenstar FS CDi Regular condensing boilers deliver this 
energy-saving performance by recycling exhaust gases to 
extract the latent heat – a highly efficient use of energy 
which also significantly reduces carbon dioxide emissions 
into the atmosphere.
To all these major benefits you can add yet more: renowned 
Worcester quality and reliability; a range of outputs to 
satisfy the heating demands of a range of households and 
truly all-round value for money.
The Greenstar FS CDi Regular  
condensing boiler series










