This thermostat is designed to be used with Potterton Combi, Duo-tec, Duo-tec ErP, Megaflo, Megaflo ErP, Platinum, Platinum +, Platinum ErP, System, System IE, Main Combi/Combi HE, Main Eco, Main Eco Elite, Main Eco Elite ErP, Main HE, Apollo, Gold, Gold ErP, Heatmax, Performa, Promax, Promax ErP, Titanium and Titanium ErP boilers.
