OSO Buffer Tank for Heatpumps 60L - 100L - 200L

60L - 430mm x 750mm

100L - 435mm x 1166mm

200L - 595mm x 1265mm

OSO BUFFER DATA & INSTALLATION MANUAL 

Better Efficiency

• Stainless steel buffer vessel specifically designed for use with heat pumps   

• Increases system efficiency by keeping return water temperatures as low as possible

• Adds extra thermal load through stored water volume to optimise heat pump performance

• Allows the heat pump to continue running efficiently, even when room thermostats are satisfied

• Reduces short cycling and supports longer, more efficient run times

Better Comfort

• Maintains consistent comfort levels throughout the home

• Enables continued space heating when hot water priority diverts the heat pump (often over an hour on some models)

• Provides stored energy to support heating during defrost cycles (approx. 15 minutes)

• Reduces temperature drops during system changeovers

Quicker Reaction

• Pre-heated buffer water delivers immediate warmth when heating is called

• Significantly reduces heat-up lag, particularly effective with radiator systems

• Helps prevent the heat pump entering anti-cycling or hibernation states (up to 20 minutes)

• Keeps the heating system responsive and ready to meet sudden demand