Intermediate Vessels & Volumisers from MacDonald Plumbing & Heating Supplies http://www.macdonaldplumbingsupplies.com/rss/1/productlistings/intermediate-vessels-volumisers/cat839 <p class="isSelectedEnd">The <strong>Intermediate Vessels &amp; Volumisers</strong> department at MacDonald Plumbing Supplies provides a growing range of volumiser and intermediate vessel solutions for professional heating and heat pump installations. Our current range includes Advantay Volumiser Buffer Tanks in 12, 18, 35 and 50 litre capacities, with additional brands and sizes being added very soon.</p> <p class="isSelectedEnd">A volumiser can provide additional water volume within a heating or heat pump system where this is required as part of the system design. Increasing the available water volume can help support system operation and may help reduce unnecessary cycling in suitable applications. The correct capacity will depend on the individual system design, heat source and manufacturer's requirements, so installers should always select a suitable product based on the specific installation.</p> <p class="isSelectedEnd">Our <strong>Intermediate Vessels &amp; Volumisers</strong> range currently focuses on compact Advantay solutions that can provide additional system volume without requiring the larger capacities associated with some traditional buffer tank installations. This can be useful for installers working on systems where available space needs to be considered alongside the required system volume.</p> <p class="isSelectedEnd">The current Advantay range includes 12 litre, 18 litre, 35 litre and 50 litre Volumiser Buffer Tanks. Having several capacities available allows heating engineers and heat pump installers to select an appropriate option for different system designs and installation requirements.</p> <p class="isSelectedEnd">The department is continuing to expand, with <strong>additional brands and sizes being added very soon</strong>. This will give installers access to a broader selection of intermediate vessels and volumisers, making it easier to find a suitable option for different heating and heat pump applications.</p> <p>The <strong>Intermediate Vessels &amp; Volumisers</strong> department is designed for professional installers looking for practical solutions to support correctly designed heating and heat pump systems. Whether you are working on a new installation, modifying an existing system or looking for a compact solution to provide additional system volume, MacDonald Plumbing Supplies offers a growing range of products to support your requirements.</p> Copyright 2026 MacDonald Plumbing & Heating Supplies en Fri, 09 Oct 2026 02:05:06 +0100 Fri, 09 Oct 2026 02:05:06 +0100 Fri, 09 Oct 2026 02:05:06 +0100 Advantay 24Ltr Intermediate Vessel 1" x 1" Advantay 24Ltr Intermediate Vessel 1&quot; x 1&quot;

Advantay 24Ltr Intermediate Vessel 1&quot; x 1&quot;

The Advantay 24Ltr Intermediate Vessel 1" x 1" is designed to increase and maintain the required water volume within air source heat pump systems. Featuring a straight-through inline design with 1" connections, this volumiser tank helps support efficient system operation in accordance with heat pump manufacturer requirements. Manufactured from durable carbon steel, it is suitable for a wide range of heating applications.

 /heat-pumps-accessories-c682/intermediate-vessels-volumisers-c839/advantay-24ltr-intermediate-vessel-1-x-1-p26027 /heat-pumps-accessories-c682/intermediate-vessels-volumisers-c839/advantay-24ltr-intermediate-vessel-1-x-1-p26027 Fri, 09 Oct 2026 02:05:05 +0100 Advantay Volumiser Buffer Tank 12 Litres Advantay Volumiser Buffer Tank 12 Litres

Advantay Volumiser Buffer Tank 12 Litres

Straight through design. Can also be used as a small volumiser / buffer vessel, please note these are not insulated. Made from Carbon Steel and will need suitable water treatment to prevent corrosion. 3/4" M top and bottom connections.

 /heat-pumps-accessories-c682/intermediate-vessels-volumisers-c839/advantay-volumiser-buffer-tank-12-litres-p18351 /heat-pumps-accessories-c682/intermediate-vessels-volumisers-c839/advantay-volumiser-buffer-tank-12-litres-p18351 Fri, 09 Oct 2026 02:05:05 +0100 Advantay Volumiser Buffer Tank 35 Litres Advantay Volumiser Buffer Tank 35 Litres

Advantay Volumiser Buffer Tank 35 Litres

Straight through design. Can also be used as a small volumiser / buffer vessel, please note these are not insulated. Made from Carbon Steel and will need suitable water treatment to prevent corrosion. 3/4" M top and bottom connections.

 /heat-pumps-accessories-c682/intermediate-vessels-volumisers-c839/advantay-volumiser-buffer-tank-35-litres-p18354 /heat-pumps-accessories-c682/intermediate-vessels-volumisers-c839/advantay-volumiser-buffer-tank-35-litres-p18354 Fri, 09 Oct 2026 02:05:05 +0100 Advantay Volumiser Buffer Tank 50 Litres Advantay Volumiser Buffer Tank 50 Litres

Advantay Volumiser Buffer Tank 50 Litres

Straight through design. Can also be used as a small volumiser / buffer vessel, please note these are not insulated. Made from Carbon Steel and will need suitable water treatment to prevent corrosion. 3/4" M top and bottom connections.

 /heat-pumps-accessories-c682/intermediate-vessels-volumisers-c839/advantay-volumiser-buffer-tank-50-litres-p18355 /heat-pumps-accessories-c682/intermediate-vessels-volumisers-c839/advantay-volumiser-buffer-tank-50-litres-p18355