Greenstar CDi Classic overview

Our Greenstar CDi Classic boiler is our top of the range combi boiler offering the highest levels of hot water comfort.

This boiler has set the benchmark within the industry for efficiency and reliability and is suitable for homes with one or two bathrooms.

  • Highest hot water flow rate of the Greenstar combi wall mounted range
  • Simple boiler control knobs with clear temperature display
  • Low energy pump reduces electrical usage
  • Frost protection is included, reducing frost risk if installed in a garage or a loft
  • Larger two bathroom properties can be supplied by higher output options
  • Wide choice of controls enables greater comfort and economy
  • Instantaneous hot water, always available
  • Inbuilt keyless filling link making it easy to refill your system
  • Large Condensesure style siphon built into the boiler - eliminates frost risk*

Greenstar CDi Classic Greenstar CDi Classic
Greenstar CDi Classic Greenstar CDi Classic
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Technical Details

Greenstar 29CDi Classic Greenstar 34CDi Classic Greenstar 38CDi Classic Greenstar 42CDi Classic
ErP Efficiency Rating
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ErP Data Sheet ErP Data Sheet ErP Data Sheet ErP Data Sheet ErP Data Sheet
LPG model available
Wave Compatible
Solar Compatible
Control Options
Central heating output (kW) 30 30 30 30
Dimensions (mm) height x width x depth 760 x 440 x 360 760 x 440 x 360 760 x 440 x 360 760 x 440 x 360
Hot water flow rate 35°c ∆T (litres per minute) 12.3l/min 14.3l/min 16.4l/min 17.2l/min
Hot water flow rate 40°c ∆T (litres per minute) 11l/min 12l/min 14l/min 15l/min

*The Condensesure Siphon has been proven to be effective at preventing frozen condensate at -15°C for a sustained period of 48 hours. 32mm pipework must be used and should not exceed 3 metres in length

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