Grant MonoWave HP 250L Unvented Indirect Heat Pump Cylinder (HPMONO/IND250)

Maximise the efficiency of your renewable heating system with the Grant MonoWave HP 250L Indirect Cylinder (HPMONO/IND250). Specially engineered to pair seamlessly with air source heat pumps, this high-capacity unvented hot water cylinder delivers rapid recovery times, exceptional thermal retention, and high-pressure hot water throughout larger properties.

Key Features and Benefits

• Optimised for Heat Pumps: Features a enlarged, high-efficiency corrugated heat exchanger coil designed specifically to maximise heat transfer from lower-temperature heat pump circuits.

• Generous 250L Capacity: Built to handle the high hot water demands of medium-to-large family homes, supplying multiple bathrooms simultaneously without a drop in performance.

• Mains-Pressure Performance: Delivers strong, constant water pressure to all taps, showers, and baths without requiring a cold water storage tank in the loft.

• Low Standing Heat Loss: Encased in 40mm thick, CFC/HCFC-free polyurethane foam insulation to keep standing heat losses exceptionally low and maintain water temperature for longer.

• Premium Duplex Stainless Steel: Constructed from 1mm thick duplex stainless steel for maximum strength and outstanding corrosion resistance, eliminating the need for a sacrificial anode.

• Complete Unvented Kit Included: Supplied complete with a factory-matched accessory package, including a 24-litre expansion vessel, inlet control group, dual thermostat, tundish, and 2-port motorised zone valve.

Ideal Applications

• Air Source Heat Pump Installations: Purpose-built for integration with Grant Aerona heat pump systems and other air source units.

• 4 to 5 Bedroom Properties: Sized perfectly for family households with 2 or more busy bathrooms requiring a reliable, high-volume hot water store.

• Energy-Efficient Upgrades: The ultimate choice for converting existing boiler setups to modern renewable heat source systems or for new-build projects.