Overview
The **Vaillant uniSTOR 250L Unvented Indirect Cylinder** is a premium stainless steel hot water storage solution designed for larger domestic properties. Perfect for sealed heating systems or open vent boilers, this high-capacity cylinder provides reliable and efficient hot water for homes with multiple bathrooms or high hot water demands.
Capacity and Performance
- **Generous 250-litre capacity** – ideal for larger households
- **Low standby losses** – only 1.4 kWh/24h, helping reduce energy consumption and running costs
- **Energy-efficient design** – rated Class B against L-profile, ensuring optimal efficiency for your home
- **Unvented design** – delivers high water pressure for improved flow at taps and showers
Dimensions and Installation
- **Compact footprint for its capacity** – W x H x D: 595 x 1535 x 595 mm
- **Lightweight yet robust** – empty weight 61 kg, full weight 301 kg
- **Flexible installation options** – suitable for retrofitting onto existing heating systems or as part of a new build
Durability and Peace of Mind
The uniSTOR cylinder is made from **high-quality stainless steel**, ensuring long-lasting performance and resistance to corrosion. Its robust design makes it suitable for demanding household conditions while maintaining efficiency over many years.
Why Choose Vaillant uniSTOR 250?
The uniSTOR 250L is perfect for homeowners upgrading from older vented cylinders or expanding their hot water storage. Its **high-capacity, low-loss design** delivers reliable hot water, reduces energy costs, and provides a strong, consistent flow for multiple outlets.
FAQs
Q: What is the capacity of the Vaillant uniSTOR 250?
The cylinder holds **250 litres of hot water**, making it ideal for larger homes with multiple bathrooms.
Q: How energy-efficient is the uniSTOR 250?
It has **low standby losses of 1.4 kWh/24h** and is **rated Class B** against L-profile for energy efficiency.
Q: Can it be installed on existing heating systems?
Yes, the uniSTOR 250 is **retrofit-friendly** and can be installed on older sealed systems or as part of a new heating setup.
Check out our full range of plumbing supplies.
Browse more boiler accessories available online.
