The uniSTOR 180 unvented hot water storage cylinder from Vaillant is suitable when converting from an open vented system (with a cold water tank in the loft) to a sealed system (boiler and cylinder) saving space and increasing 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, improving your heating system's efficiency and lowering your fuel bills.
- 180 litre capacity
- Made from high grade, long-lasting duplex stainless steel
- Highly insulated with environmentally friendly materials
- Aesthetically pleasing, easy-to-clean outer casing
- 2 year parts and labour guarantee
- 25 year cylinder guarantee