Domestic Hot Water Cylinder for Heat Pump

uniSTOR plus

High recovery cylinders

Hot water

Patented, purpose-built buffer designed to sit above or below the cylinder
Outputs from 90 to 300 litres.
Pre-plumbed options available
Large coil surface area maximises heat transfer to ensure connected Vaillant systems run at their optimum efficiency

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Manufactured in Derbyshire specifically for the UK market, our range of high recovery slimline and standard diameter cylinders provides the ultimate performance and reliability. The high-quality, stainless-steel uniSTOR cylinders are available in a wide range of capacities, from 90 to 300 litres. The improved performance ensures that any cylinder can now be paired with any kW heat pump, or heat only or system boilers for a full system solution. Designed with simplicity and ease of installation in mind, our pre-plumbed models reduce installation time, while the internal expansion vessel and our purpose-designed patented buffer reduces product footprint and allows for more flexible siting.

Patented, purpose-built buffer

The buffer store solution has been expertly crafted with installer feedback at its core. Our cleverly designed buffer solution has been optimised to maximise space within your customer's home as a stackable solution.This unique solution can be installed to sit either below or above the cylinder when required as part of the heat pump system only. The buffer adds 400mm to the height of each cylinder.

Capacities suitable for all customers and property requirement

The uniSTOR plus is available in 90 to 210 litres for the slimline range and 150 to 300 litres in standard range, suiting all property types and hot water demands. All capacities are available in a choice of both pre-plumbed and standard models. Enjoy peace of mind with a 25-year anti-corrosion guarantee on the internal stainless-steel tank, ensuring durability and reliability, and a 2-year parts and labour guarantee.

Pre-plumbed options available

To help reduce installation time, the uniSTOR pure has pre-plumbed options available. This thoughtful design ensures that all components are ready to connect, allowing for a quicker and smoother installation. It is easy to connect pipework when working in tight spaces, thanks to the front-facing connections and pipework.

Internal expansion vessel

The uniSTOR plus offers an internal expansion vessel that ensures quick installation. Its sleek design optimises space in compact areas, making it an ideal choice for projects where space is at a premium. By absorbing the expansion of water as it heats, it prevents pressure fluctuations, ensuring a smooth and uninterrupted supply. This means your customers can enjoy a steady flow of hot water whenever they need it, without any worries.

Improved re-heat times and system efficiency

The uniSTOR plus is designed with efficiency at its core, ensuring your Vaillant system operates at peak performance. Its large coil surface area is a game-changer, maximising heat transfer to deliver improved re-heat times and system efficiency. This means quicker access to hot water and a more efficient system overall for your customers.