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Grandee Boilers Boiler Efficiency Rating

ModelTypeFuelEfficiency
Grandee GCCF 15/23CondensingOil88.5%
Grandee GCCF 23/30CondensingOil88.1%
Grandee GCCW 15/22CondensingOil88.5%
Grandee GCCW 15/22 ExtCondensingOil88.5%
Grandee GCCW 23/28CondensingOil88.1%
Grandee GCCW 23/28 ExtCondensingOil88.1%
Grandee GCF 10-15CondensingOil89.5%
Grandee GCF 15/23CondensingOil90.2%
Grandee GCF 23/30CondensingOil89.8%
Grandee GCW 10-15CondensingOil89.5%
Grandee GCW 10-15 ExtCondensingOil89.5%
Grandee GCW 15/22CondensingOil90.2%
Grandee GCW 15/22 ExtCondensingOil90.2%
Grandee GCW 23/28CondensingOil89.8%
Grandee GCW 23/28 ExtCondensingOil89.8%
Grandee GSCF 10-15CondensingOil89.5%
Grandee GSCF 15/23CondensingOil90.2%
Grandee GSCF 23/30CondensingOil89.8%
Grandee GSCW 10-15CondensingOil89.5%
Grandee GSCW 10-15 ExtCondensingOil89.5%
Grandee GSCW 15/22CondensingOil90.2%
Grandee GSCW 15/22 ExtCondensingOil90.2%
Grandee GSCW 23/28CondensingOil89.8%
Grandee GSCW 23/28 ExtCondensingOil89.8%