Overview
The **Vaillant uniSTOR 300L Unvented Indirect Cylinder** is a high-quality hot water storage solution, designed for domestic properties with new or existing sealed systems or open vent boilers. Ideal for larger homes with multiple bathrooms, this cylinder provides reliable hot water while improving system efficiency. Its slimline design allows flexible installation even in spaces where traditional cylinders may not fit.
Performance and Efficiency
- **High-capacity 300 litres** – perfect for larger households with multiple bathrooms
- **Duplex stainless steel construction** – long-lasting, robust, and corrosion-resistant
- **Highly insulated** – minimises heat loss, reduces running costs, and is environmentally friendly
- **Unvented design** – operates efficiently under higher pressures, providing strong water flow at taps and showers
- **Retrofit-friendly** – can replace older cylinders without the need to upgrade the entire system
Installation and Convenience
- **Adjustable feet** – suitable for installation on uneven floors
- **Slimline and standard cylinder options** – fits in more compact spaces
- **Easy-to-clean outer casing** – maintains a neat and hygienic appearance
- **Compatible with sealed or open vent systems** – ideal for conversions from loft tanks to space-saving sealed systems
Durability and Warranty
The uniSTOR 300 is built from **high-grade stainless steel** and comes with a **2-year parts and labour guarantee**, as well as an **industry-leading 25-year guarantee on the cylinder shell**, providing peace of mind for homeowners and installers alike.
Why Choose Vaillant uniSTOR 300?
The uniSTOR 300L cylinder is perfect for homes seeking **high-capacity, reliable hot water storage** without compromising on space. By upgrading from an older copper cylinder, this unit significantly reduces heat loss, increases system efficiency, and delivers improved water pressure. Its durable build, advanced insulation, and compact design make it a long-term, cost-effective solution for larger properties.
FAQs
Q: What is the capacity of the Vaillant uniSTOR 300?
The cylinder has a **300-litre capacity**, making it ideal for larger homes or properties with multiple bathrooms.
Q: Can the uniSTOR 300 be fitted to older heating systems?
Yes, it can be **retrofitted onto existing systems**, allowing an upgrade without replacing the entire heating setup.
Q: How energy-efficient is the Vaillant uniSTOR 300?
Thanks to its **high-grade insulation**, the cylinder minimises heat loss, helping to **lower energy bills** and improve overall system efficiency.
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