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DD Heating Boilers Boiler Efficiency Rating, Repair & Service

Model Type Fuel Efficiency
DD Heating Heatline C24 Condensing Gas 85.5%
DD Heating Heatline C28 Condensing Gas 86.1%
DD Heating Heatline C28S Condensing Gas 86.1%
DD Heating Heatline S20 Compact Non-Condensing Gas 79.3%
DD Heating Heatline S20S Compact Non-Condensing Gas 79.4%
DD Heating Heatline S24 Compact Non-Condensing Gas 79.9%
DD Heating Heatline S24S Compact Non-Condensing Gas 80.0%
DD Heating Heatline S30 Compact Non-Condensing Gas 79.0%
DD Heating Heatline S30S Compact Non-Condensing Gas 79.1%
DD Heating Heatline Solaris 24PC Condensing Gas 88.6%
DD Heating Heatline Solaris 30 PC Condensing Gas 88.6%
DD Heating Heatline Solaris 30PCS Condensing Gas 88.7%
DD Heating Heatline Star 24 Non-Condensing Gas 78.6%
DD Heating Mikrofill Ethos 24 C Non-Condensing Gas 78.6%