Vaillant Insulation Below 0020085710

This is the lower insulation component for Vaillant Allstor VPS hot water storage vessels, supplied under part number 0020085710. It sits beneath the cylinder body and forms part of the appliance's thermal insulation layer. Its function is to limit standing heat loss from the lower section of the vessel.

• Visible deterioration, crumbling or compression of the insulation material
• The insulation has become damp, saturated or shows signs of water staining
• Increased standing heat loss from the lower part of the cylinder
• Condensation forming on the lower vessel surface or surrounding pipework
• The insulation no longer sits correctly against the vessel body

• Confirm the appliance model and year against the fitment list above
• Check the part number 0020085710 against the manufacturer's parts list for your vessel
• Verify whether the lower or upper insulation section is the one requiring replacement
• Inspect the vessel for any underlying leak or water ingress before fitting new insulation