Grant combined volumiser/low loss header 70kW kit which creates hydraulic separation. The unit cleverly maintains the correct flow rate through the heat pump and can provide a suitable volume of system water that allows the heat pump to fully modulate

• Available to order on its own or as part of Grant Heat Pump Installation Packs A, B and C
• Installers can select their preferred set-up - volumiser or hydraulic separation
• Provides an extra 11.5 litres to the system volume connected to the heat pump
• Gives hydraulic separation of the primary circuit of the heat pump from the secondary system circuit. 
• Supplied with factory-fitted 3kW supplementary element and relay