Vaillant 250L uniSTOR Standard Heat Pump Cylinder

The standard uniSTOR heat pump cylinder is available in 150, 200, 250, and 300 litres. Each cylinder uses the latest thermal injected insulation for the lowest heat losses in its class, with as little as 1kW per 24 hours. The strategically positioned large diameter smooth bore coil provides optimum hot water performance and automatically de-scales to ensure long term efficient hot water generation.

The uniSTOR cylinder is suitable for all types of property with a sealed system or open vent boiler. Being ideally suited for larger properties with multiple bathrooms, heating systems using a cylinder can often provide a higher level of hot water than a combination boiler.

Vaillant uniSTOR unvented cylinders can be used when converting from an open vented system (with a cold water tank in the loft) to a sealed system (boiler and cylinder system). Converting to a sealed system can help save space when there is no room for a tank, and often will provide higher water pressure at your taps and shower.

By upgrading an old copper cylinder with insulation jacket to a uniSTOR unvented cylinder as part of a heating system upgrade, you can make your heating system more efficient by reducing your cylinder heat losses significantly, and reduce your fuel bills.

About uniSTOR cylinders

The uniSTOR heat pump cylinder range has been designed to work in harmony with Vaillant heat pumps, to provide highly efficient heating and hot water systems. uniSTOR’s large surface area and smooth coil design maximises heat transfer, to ensure connected Vailllant heat pumps run at their optimum efficiency, to reduce running costs and increase hot water performance.

Ranging from 150 up to 800 litres, uniSTOR heat pump cylinders are available in both pre-plumbed (150-300 litres) and standard options (150-300 litres), giving you even more flexibility. In addition to this, the 250 and 300 litre cylinders have an increased coil size making them compatible with a wider range of ground source heat pump systems.

uniSTOR cylinders also have a Global Warming Potential of less than 5 thanks to thermal injected insulation, as well as a 100% recyclable stainless steel tank with an ultra-hard-wearing outer shell, to deliver a highly efficient and sustainable heating system.

Features & Benefits

• Thermal injected polyurethane insulation combined with vacuum panels – Superior insulation and efficiency
• Large diameter, smooth coil technology – Provides quiet operation, reduces build-up of scale and aids in long-term efficiency through automatic descaling.
• Global Warming Potential less than 5 and ozone depletion of 0 – Designed around environmental requirements.
• Thermodynamically positioned sensor pocket – Optimises system performance.
• Expansion vessels included or available as accessories – Complete system solution offering whilst meeting all building regulations.

uniSTOR pre-plumbed cylinder:

• 200 litre
• 250 litre
• 300 litre

uniSTOR slimline pre-plumbed cylinder:

• 150 litre

uniSTOR standard cylinder:

• 150 litre
• 200 litre
• 250 litre
• 300 litre

uniSTOR large capacity cylinder:

• 500 litre
• 800 litre