MPN: 0020020655

Vaillant 100L Floor Standing Expansion Vessel

Vaillant 100L Floor Standing Expansion Vessel


Regular price £256.16 Excl. VAT
£307.39 Incl. VAT
Sale price £256.16 Excl. VAT
£307.39 Incl. VAT
Regular price
*For business & Trade Accounts only.
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Key Information

Product Information

Vaillant 100L Floor Standing Expansion Vessel

The Vaillant 100L Floor Standing Expansion Vessel is designed to support and protect sealed heating and hot water systems by managing pressure changes as water heats and cools. As water expands during the heating process, the expansion vessel provides the necessary space to accommodate this increased volume, helping to prevent excess pressure from building up within the system. This floor standing expansion vessel is ideal for larger domestic or light commercial heating systems where additional expansion capacity is required. Built to Vaillant’s high manufacturing standards, it offers reliable performance, long service life, and helps maintain the efficiency and safety of your heating system. Its floor standing design makes it easy to install in plant rooms or utility areas where wall mounting may not be suitable. The unit is robust, durable, and specifically designed to work alongside Vaillant heating and heat pump systems.

Key Specifications

Product: Vaillant 100L Floor Standing Expansion Vessel GTIN: 4024074509906 Product Type: Other Heat Pump Accessories Gross Weight (Including Packaging): 16.4kg Net Weight: 16.1kg Installation Type: Floor Standing Capacity: 100 Litres

Why You Need an Expansion Vessel

An expansion vessel is an essential component in sealed heating systems. Without one, expanding water would cause pressure to build up, which could lead to system damage, leaks, or pressure relief valve discharge. By installing a properly sized expansion vessel like this 100L Vaillant model, you help protect the system, reduce maintenance issues, and improve overall system lifespan.

FAQs

What does an expansion vessel do?

An expansion vessel absorbs the increased volume of water as it heats and expands, preventing pressure build-up and protecting the heating system from damage.

Is this expansion vessel suitable for heat pump systems?

Yes, this Vaillant expansion vessel is suitable for use with heating and heat pump systems where additional system expansion capacity is required.

Where is a floor standing expansion vessel installed?

A floor standing expansion vessel is typically installed in a plant room, garage, or utility space near the boiler or heat pump system.

Why Choose Us

At JJ Building Materials, we're committed to supplying quality building products at competitive prices, backed by the service and expertise you'd expect from an established independent merchant. Whether you're a trade professional managing large-scale projects or a homeowner taking on a DIY renovation, we're here to help you find the right products for the job.

As part of the JJ Roofing Supplies Group, we build on decades of experience supplying construction materials across the UK. We've expanded beyond roofing to offer a growing range of building materials, including timber, insulation, landscaping products, plumbing supplies, flooring, doors, bricks, fencing, garden buildings and much more – all available to order online with nationwide delivery.

We work with many of the industry's leading manufacturers to bring you trusted products that meet the highest standards of quality and performance. Our team is passionate about providing excellent customer service, competitive pricing and a straightforward shopping experience from start to finish.

When you shop with JJ Building Materials, you can expect:

  • Competitive prices on leading brands and quality products.
  • Nationwide delivery across the UK
  • A constantly expanding range of building and landscaping materials.
  • Friendly, knowledgeable customer support.
  • A trusted business backed by the JJ Roofing Supplies Group.

Delivery

Every order is personally reviewed by our experienced team to ensure everything is correct before dispatch. We offer delivery from as little as the next working day on selected products, so please refer to the dark blue Estimated Delivery box above for the expected delivery timeframe for this item.

We work with trusted manufacturers and specialist delivery partners to ensure your order arrives safely and on time. You'll receive tracking details once your order has been dispatched, and if we need to confirm any delivery details, one of our team will contact you directly to keep everything running smoothly.

Roof Tiles & Fittings:

We recommend ordering an additional 10% of roof tiles to allow for any breakages that may occur during delivery or handling. Roof tiles are naturally fragile, and having a few extra on site helps prevent delays and ensures your roofing project can be completed without interruption.

Vaillant 100L Floor Standing Expansion Vessel

£256.16

Can I collect this product from a local branch?

Absolutely. Check availability at your nearest branch during checkout or contact us directly.

Do you offer bulk pricing or trade discounts?

Yes, we offer competitive rates for trade customers and bulk orders. Contact our team for a tailored quote.

What if the product arrives damaged?

Please notify us within 48 hours of delivery. We’ll arrange a prompt replacement or refund as needed.

How fast is the delivery time?

Most items are delivered within 2–5 working days, depending on stock and location. Some products may take longer times.

What is the Return Policy?

We accept most returns within 14 days of delivery, provided the items are unused, in their original packaging, and in resalable condition. Please contact our customer service team to arrange a return or discuss any concerns.