How much could I save?Try our easy savings calculatorBased on research by the University of Liverpool <h3>Please enable javascript to use the calculator</h3> Your winter climate?Cold (Scotland)Cool (N. England)Mild (S. England)Your property?DetachedSemi or terraceYour heating cost per unit?As shown on your gas or electricity billpence per kW Hr Calculate My SavingsDownload the full reportYou could be saving Try our Stack Effect Calculator This tool is not available on mobile devices. Please check back on desktop.