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An expansion vessel and non-return valve should be fitted per the installation manual depending on your mains pressure conditions
Heating + Hot Water
66 kg (including cylinder) Operating Temperature Range 30°C to 80°C Operating Pressure 0
The supplied unvented kit (expansion vessel
since flow temperatures of up to 65°C are available all year round for room heating and DHW heating
Calmag CalCombi Mini 2-in-1 Magnetic & Electrolytic Scale Inhibitor c/w 15mm & 22mm Fittings solar An expansion vessel and non-returnThe Calmag CalCombi Mini (SI CALCOMBI MINI) is a space saving, dual purpose in line scale inhibitor that combines magnetic and electrolytic scale prevention technology in a single 105mm push fit unit. It can be fitted to a central heating system to help prevent corrosion, or to a cold water main to prevent limescale forming, and is supplied complete with 22mm push fit fittings and 15mm push fit stem adaptors, making one unit suitable for both pipe
