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The 30 Ltr external volumiser is designed for installation with Grant heat pumps when the combined volumiser/low-loss header cannot be fitted inside.

A simple vessel that increases the volume of the system
Has just two connections - one inlet and one outlet, and it must be fitted in the flow from the heat pump if the volumiser contains an immersion element that is to be used as a supplementary heater
Supplied to sit behind the heat pump
Weatherproof casing and insulated designed for external installation
Connected to the flow from the heat pump into the flow of the system
Supplied complete with 3kW supplementary heater and relay

Waist Sizeaa12ci38gzTypeExternal VolumiserSupplier Part NumberHPIDVOL30EXTBrand NameGrant

Grant 30 Litre External Volumizer c/w Backup Heater HPIDVOL30EXT

£398.71