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Greenstar equivalents to old Worcester boilers

Replacing discontinued Worcester boilers

The table below shows suitable current boilers to replace discontinued Worcester boilers.

For more details download the full table

Old Boiler Date Production ceased Condensing boiler replacement Pipework cross/over from old to new Maximum possible horizontal flue length (old-new) Comments
Heatslave 9.24 1988 Greenstar 24i Junior/25Si Yes, all pipework on old boiler different to new 2m - 4.6m Fits within footprint
9.24 Electronic 1993 Greenstar 24i Junior/25Si Yes, all pipework on old boiler different to new 2m - 4.6m Fits within footprint
240 1997 Greenstar 24i Junior/25Si Yes, all pipework on old boiler different to new 2m - 4.6m Fits within footprint
280 1997 Greenstar 28i Junior>/30Si Yes, all pipework on old boiler different to new 3m - 4.6m Fits within footprint
350 1998 Greenstar 37CDi Yes, all pipework on old boiler different to new 2m - 6.5m Fits within footprint
24i 2004 Greenstar 24i Junior All pipework in same order 2.5m - 4.6m Fits within footprint
28i 2005 Greenstar 28i Junior All pipework in same order 2m - 4.6m Fits within footprint
25Si 2002 Greenstar 25Si All pipework in same order 3m - 4.6m Fits within footprint
28Si 2002 Greenstar 30Si All pipework in same order 3m - 4.6m Fits within footprint
24Si II 2007 Greenstar 25Si All pipework in same order 4m - 4.6m Fits within footprint
28Si II 2007 Greenstar 30Si All pipework in same order 4m - 4.6m Fits within footprint
24CDi 2007 Greenstar 25Si All pipework in same order except gas and cold insert need to be crossed 4m - 4.6m Fits within footprint
28CDi 2007 Greenstar 30Si/30CDi All pipework in same order except gas and cold insert need to be crossed 3m - 4.6m/7m Fits within footprint
35CDi II 2007 Greenstar 37CDi All pipework in same order except gas and cold insert need to be crossed 3m - 6.5m Fits within footprint
24i Junior 2007 Greenstar 24i Junior All pipework in same order 3m - 4.6m Does not fit within footprint, 110mm higher
28i Junior 2007 Greenstar 28i Junior All pipework in same order 3m - 4.6m Does not fit within footprint, 110mm higher


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