The Vaillant uniSTOR unvented hot water storage cylinders can be used when converting from an open vented system with a cold water tank in the loft to a sealed boiler and cylinder system saving space and improving water pressure. Upgrading an old copper cylinder to a new uniSTOR unvented cylinder as part of a heating system upgrade will reduce cylinder heat losses, making your heating system more efficient and saving money on your fuel bills.
Made from high grade, long-lasting duplex stainless steel
Highly insulated with environmentally friendly materials
Easy-to-clean outer casing
2 year parts and labour guarantee
25 year cylinder guarantee
Picking the right sort of Cylinder is an important decision. Once you determine that Indirect Unvented Cylinders deliver the appropriate answer then the Vaillant uniSTOR 120l Standard Indirect Unvented Hot Water Cylinder - 0020235265 is clearly worth putting on the shortlist.