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Manufacturers

Heating World Group Boilers Boiler Efficiency Rating

ModelTypeFuelEfficiency
Heating World Group Beta 15/17 WMNon-CondensingOil70.0%
Heating World Group Beta 15/19Non-CondensingOil70.0%
Heating World Group Beta 42339Non-CondensingOil70.0%
Heating World Group Flamevector SHFS 12/18 BFNon-CondensingOil85.6%
Heating World Group Flamevector SHFS 12/18 CFNon-CondensingOil85.6%
Heating World Group Flamevector SHFS 18/21 BFNon-CondensingOil82.5%
Heating World Group Flamevector SHFS 18/21 CFNon-CondensingOil82.5%
Heating World Group Flamevector SHI 12/18 BFNon-CondensingOil85.6%
Heating World Group Flamevector SHI 12/18 CFNon-CondensingOil85.6%
Heating World Group Flamevector SHI 18/21 BFNon-CondensingOil82.5%
Heating World Group Flamevector SHI 18/21 CFNon-CondensingOil82.5%
Heating World Group Grandee 1.40Non-CondensingOil84.2%
Heating World Group Grandee 1.50Non-CondensingOil82.5%
Heating World Group Grandee 1.60Non-CondensingOil82.5%
Heating World Group Grandee 1S 12/18 BFNon-CondensingOil85.6%
Heating World Group Grandee 1S 12/18 BF EXTNon-CondensingOil85.6%
Heating World Group Grandee 1S 12/18 CFNon-CondensingOil85.6%
Heating World Group Grandee 2.70Non-CondensingOil83.3%
Heating World Group Grandee 2.80Non-CondensingOil83.3%
Heating World Group Grandee 2S 18/22 BFNon-CondensingOil85.6%
Heating World Group Grandee 2S 18/22 BF EXTNon-CondensingOil85.6%
Heating World Group Grandee 2S 18/22 CFNon-CondensingOil85.6%
Heating World Group Grandee 3.100Non-CondensingOil83.3%
Heating World Group Grandee 3.90Non-CondensingOil83.3%
Heating World Group Grandee 3S 22/27 BFNon-CondensingOil85.6%
Heating World Group Grandee 3S 22/27 BF EXTNon-CondensingOil85.6%
Heating World Group Grandee 3S 22/27 CFNon-CondensingOil85.6%
Heating World Group Grandee 4.40Non-CondensingOil84.2%
Heating World Group Grandee 4.40 BFNon-CondensingOil84.2%
Heating World Group Grandee 4.50Non-CondensingOil82.5%
Heating World Group Grandee 4.50 BFNon-CondensingOil82.5%
Heating World Group Grandee 4.60Non-CondensingOil82.5%
Heating World Group Grandee 4.60 BFNon-CondensingOil82.5%
Heating World Group Grandee 5.40Non-CondensingOil84.2%
Heating World Group Grandee 5.40 BFNon-CondensingOil84.2%
Heating World Group Grandee 5.50Non-CondensingOil82.5%
Heating World Group Grandee 5.50 BFNon-CondensingOil82.5%
Heating World Group Grandee 5.60Non-CondensingOil82.5%
Heating World Group Grandee 5.60 BFNon-CondensingOil82.5%
Heating World Group Grandee 5S 12/18 BFNon-CondensingOil85.6%
Heating World Group Grandee 5S 12/18 CFNon-CondensingOil85.6%
Heating World Group Grandee 6.60Non-CondensingOil84.5%
Heating World Group Grandee 6.60 BFNon-CondensingOil84.5%
Heating World Group Grandee 6.70Non-CondensingOil84.5%
Heating World Group Grandee 6.70 BFNon-CondensingOil84.5%
Heating World Group Grandee 6.80Non-CondensingOil84.5%
Heating World Group Grandee 6.80 BFNon-CondensingOil84.5%
Heating World Group Grandee 6S 15/23 BFNon-CondensingOil84.5%
Heating World Group Grandee 6S 15/23 CFNon-CondensingOil84.5%
Heating World Group Grandee 7.100Non-CondensingOil84.5%
Heating World Group Grandee 7.100 BFNon-CondensingOil84.5%
Heating World Group Grandee 7.110Non-CondensingOil84.5%
Heating World Group Grandee 7.110 BFNon-CondensingOil84.5%
Heating World Group Grandee 7.90Non-CondensingOil84.5%
Heating World Group Grandee 7.90 BFNon-CondensingOil84.5%
Heating World Group Grandee 7S 26/32 BFNon-CondensingOil84.5%
Heating World Group Grandee 7S 26/32 CFNon-CondensingOil84.5%
Heating World Group Grandee 8.120Non-CondensingOil84.5%
Heating World Group Grandee 8.120 BFNon-CondensingOil84.5%
Heating World Group Grandee 8.135Non-CondensingOil84.5%
Heating World Group Grandee 8.135 BFNon-CondensingOil84.5%
Heating World Group Grandee 8.150Non-CondensingOil84.5%
Heating World Group Grandee 8.150 BFNon-CondensingOil84.5%
Heating World Group Grandee 8S 35/40 BFNon-CondensingOil84.5%
Heating World Group Grandee 8S 35/40 CFNon-CondensingOil84.5%
Heating World Group Grandee 9S 40/50 BFNon-CondensingOil84.5%
Heating World Group Grandee 9S 40/50 CFNon-CondensingOil84.5%
Heating World Group Grandee Combi Compact SFS 15-20 CFNon-CondensingOil82.6%
Heating World Group Grandee Combi Compact SFS 15/20 BFNon-CondensingOil82.6%
Heating World Group Grandee Combi Condensing External FS 15/23CondensingOil88.5%
Heating World Group Grandee Combi Condensing External FS 23/30CondensingOil88.1%
Heating World Group Grandee Combi Condensing External W 15/22CondensingOil88.5%
Heating World Group Grandee Combi Condensing External W 23/28CondensingOil88.1%
Heating World Group Grandee Combi Condensing FS 15/23CondensingOil88.5%
Heating World Group Grandee Combi Condensing FS 23/30CondensingOil88.1%
Heating World Group Grandee Combi Condensing W 15/22CondensingOil88.5%
Heating World Group Grandee Combi Condensing W 23/28CondensingOil88.1%
Heating World Group Grandee Combi Floor 15-20Non-CondensingOil82.6%
Heating World Group Grandee Combi Floor 15-20 BFNon-CondensingOil82.6%
Heating World Group Grandee Combi SFS 15/20 BFNon-CondensingOil82.6%
Heating World Group Grandee Combi SFS 15/20 CFNon-CondensingOil82.6%
Heating World Group Grandee Combi SFS 20/25 BFNon-CondensingOil83.2%
Heating World Group Grandee Combi SFS 20/25 CFNon-CondensingOil83.2%
Heating World Group Grandee Combi SFS 25/29 BFNon-CondensingOil83.5%
Heating World Group Grandee Combi SFS 25/29 CFNon-CondensingOil83.5%
Heating World Group Grandee Combi SW 15/20 BFNon-CondensingOil82.8%
Heating World Group Grandee Combi SW 15/20 CFNon-CondensingOil82.8%
Heating World Group Grandee Combi SW 20/24 BFNon-CondensingOil83.4%
Heating World Group Grandee Combi SW 20/24 CFNon-CondensingOil83.4%
Heating World Group Grandee Combi SW 24/27 BFNon-CondensingOil83.9%
Heating World Group Grandee Combi SW 24/27 CFNon-CondensingOil83.9%
Heating World Group Grandee Standard Condensing External FS 15/23CondensingOil90.2%
Heating World Group Grandee Standard Condensing External FS 23/30CondensingOil89.8%
Heating World Group Grandee Standard Condensing External W 15/22CondensingOil90.2%
Heating World Group Grandee Standard Condensing External W 23/28CondensingOil89.8%
Heating World Group Grandee Standard Condensing FS 15/23CondensingOil90.2%
Heating World Group Grandee Standard Condensing FS 23/30CondensingOil89.8%
Heating World Group Grandee Standard Condensing W 15/22CondensingOil90.2%
Heating World Group Grandee Standard Condensing W 23/28CondensingOil89.8%
Heating World Group Grandee System Condensing External FS 15/23CondensingOil90.2%
Heating World Group Grandee System Condensing External FS 23/30CondensingOil89.8%
Heating World Group Grandee System Condensing External W 15/22CondensingOil90.2%
Heating World Group Grandee System Condensing External W 23/28CondensingOil89.8%
Heating World Group Grandee System Condensing FS 15/23CondensingOil90.2%
Heating World Group Grandee System Condensing FS 23/30CondensingOil89.8%
Heating World Group Grandee System Condensing W 15/22CondensingOil90.2%
Heating World Group Grandee System Condensing W 23/28CondensingOil89.8%
Heating World Group Sorrento 12/15Non-CondensingOil84.2%
Heating World Group Sorrento 15/18Non-CondensingOil82.5%
Heating World Group Sorrento 18/21Non-CondensingOil82.5%
Heating World Group Sorrento SFS 12/18 BFNon-CondensingOil85.6%
Heating World Group Sorrento SFS 12/18 CFNon-CondensingOil85.6%
Heating World Group Sorrento SFS 18/21 BFNon-CondensingOil82.5%
Heating World Group Sorrento SFS 18/21 CFNon-CondensingOil82.5%
Heating World Group Sorrento SHI 12/18 BFNon-CondensingOil85.6%
Heating World Group Sorrento SHI 12/18 CFNon-CondensingOil85.6%
Heating World Group Sorrento SHI 18/21 BFNon-CondensingOil82.5%
Heating World Group Sorrento SHI 18/21 CFNon-CondensingOil82.5%