Cool Energy Solar Thermal Expansion Vessel
Cool Energy Solar Thermal Expansion Vessel

  • FEATURES

  • IN THE BOX

  • WARRANTY

  • DELIVERY & RETURNS

  • 🔓 UNLOCK TRADE PRICE

✔ Designed for Solar Thermal Circuits — Purpose-built to accommodate fluid volume changes in closed solar thermal systems, the expansion vessel maintains balanced pressure as temperatures rise and fall — protecting the system from the stress that thermal expansion would otherwise cause.

✔ Robust Internal Bladder — Smooth, Consistent Pressure Management — The heavy-duty internal bladder absorbs fluid expansion cleanly and consistently, minimising pressure spikes and reducing stress on pipes, fittings, and connected components throughout the system.

✔ Extends the Service Life of Your Installation — By absorbing thermal expansion at source, the vessel actively reduces wear on panels, heat transfer equipment, and pipework — supporting longer service intervals and a more reliable installation over the long term.

✔ Available in 8 Litre and 19 Litre — Sized for Your Array — Two capacities are available to suit different solar array sizes and system configurations, ensuring the right level of expansion accommodation for every installation without over-specifying or under-protecting.

✔ A Considered Component for a Refined Renewable Installation — Compact, purposeful, and engineered to work quietly in the background — the kind of component that makes the difference between a system that performs and one that truly endures.

✔ 1 x Solar Thermal Expansion Vessel

UK Delivery Once dispatched, we'll send you tracking information so you can follow your order every step of the way. Your order will be delivered to the nearest accessible point at your property boundary — drivers are unable to bring items inside. As this is a heavy item, please have two people available on delivery day. We strongly recommend not booking installers or making any arrangements that depend on a specific delivery date until your order has arrived safely. Estimated delivery date and any associated delivery costs for this product are indicated above the checkout button on this product page. If you would like to clarify this before making your purchase, please give us a call on 020 3740 1246.

Worry-Free delivery insurance At checkout you'll have the option to add our Worry-Free Delivery Insurance. This covers your order against transit damage, loss in transit, and theft on delivery. We'd strongly recommend it for peace of mind.

Change of mind standard in-stock returns You have 14 days from delivery to request a return by emailing hello@icecoldspice.com with your order number and reason for return. You then have a further 14 days to send the item back. Items must be unused, uninstalled, in original packaging, and in resaleable condition. Please note rejected deliveries or failed delivery attempts are classed as change-of-mind. Return postage is at your own cost. Refunds are issued within 14 days of us receiving and inspecting the item.

Bespoke, made-to-order, and pre-order items These cannot be returned for any reason, unless faulty or not as described.

Faulty or incorrect items Please inspect the packaging and item carefully on delivery and report any visible damage before signing for the goods with the driver. We recommend refusing the package if there are visible damages and making this reason clear to the driver. Contact us as soon as possible — and ideally within 48 hours — by emailing hello@icecoldspice.com with your order number, photos of the item, and a description of the issue. All faulty items are assessed in conjunction with the manufacturer, whose findings will inform the resolution offered. You are entitled to a full refund, repair, or replacement at no cost to you, including return postage.

Your statutory rights are not affected.

Are you a trade professional or business customer? Unlock BIG trade benefits including a hidden discount on this product.

✓ Your own private trade discount code, valid for one year
✓ Preferential volume and repeat order rates
✓ Dedicated 1-to-1 WhatsApp support
✓ Bespoke product customisation
✓ Specialist product sourcing

→ Click Here to Unlock Your Free Trade Membership

Cool Energy Solar Thermal Expansion Vessel

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£69.95 
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✔ Solar thermal use, manages expansion pressure

✔ Internal bladder, smooth pressure control

✔ Reduces wear, extends system lifespan

✔ 8L or 19L, size-specific options

✔ Compact design, reliable long-term performance

 

The Cool Energy solar thermal expansion vessel, available in 8 litre and 19 litre capacities, is designed to accommodate fluid volume changes in closed solar thermal circuits, helping to maintain balanced pressure as temperatures rise and fall within the system. Fitted with a robust internal bladder this vessel minimises stress on pipes and components, supporting smoother operation and extending the service life of your panels and heat transfer equipment. Supplied in a choice of sizes to suit different array capacities this component offers thoughtful support for refined renewable installations.
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Full Refund

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  • FEATURES

  • IN THE BOX

  • WARRANTY

  • DELIVERY & RETURNS

  • 🔓 UNLOCK TRADE PRICE

✔ Designed for Solar Thermal Circuits — Purpose-built to accommodate fluid volume changes in closed solar thermal systems, the expansion vessel maintains balanced pressure as temperatures rise and fall — protecting the system from the stress that thermal expansion would otherwise cause.

✔ Robust Internal Bladder — Smooth, Consistent Pressure Management — The heavy-duty internal bladder absorbs fluid expansion cleanly and consistently, minimising pressure spikes and reducing stress on pipes, fittings, and connected components throughout the system.

✔ Extends the Service Life of Your Installation — By absorbing thermal expansion at source, the vessel actively reduces wear on panels, heat transfer equipment, and pipework — supporting longer service intervals and a more reliable installation over the long term.

✔ Available in 8 Litre and 19 Litre — Sized for Your Array — Two capacities are available to suit different solar array sizes and system configurations, ensuring the right level of expansion accommodation for every installation without over-specifying or under-protecting.

✔ A Considered Component for a Refined Renewable Installation — Compact, purposeful, and engineered to work quietly in the background — the kind of component that makes the difference between a system that performs and one that truly endures.

✔ 1 x Solar Thermal Expansion Vessel

UK Delivery Once dispatched, we'll send you tracking information so you can follow your order every step of the way. Your order will be delivered to the nearest accessible point at your property boundary — drivers are unable to bring items inside. As this is a heavy item, please have two people available on delivery day. We strongly recommend not booking installers or making any arrangements that depend on a specific delivery date until your order has arrived safely. Estimated delivery date and any associated delivery costs for this product are indicated above the checkout button on this product page. If you would like to clarify this before making your purchase, please give us a call on 020 3740 1246.

Worry-Free delivery insurance At checkout you'll have the option to add our Worry-Free Delivery Insurance. This covers your order against transit damage, loss in transit, and theft on delivery. We'd strongly recommend it for peace of mind.

Change of mind standard in-stock returns You have 14 days from delivery to request a return by emailing hello@icecoldspice.com with your order number and reason for return. You then have a further 14 days to send the item back. Items must be unused, uninstalled, in original packaging, and in resaleable condition. Please note rejected deliveries or failed delivery attempts are classed as change-of-mind. Return postage is at your own cost. Refunds are issued within 14 days of us receiving and inspecting the item.

Bespoke, made-to-order, and pre-order items These cannot be returned for any reason, unless faulty or not as described.

Faulty or incorrect items Please inspect the packaging and item carefully on delivery and report any visible damage before signing for the goods with the driver. We recommend refusing the package if there are visible damages and making this reason clear to the driver. Contact us as soon as possible — and ideally within 48 hours — by emailing hello@icecoldspice.com with your order number, photos of the item, and a description of the issue. All faulty items are assessed in conjunction with the manufacturer, whose findings will inform the resolution offered. You are entitled to a full refund, repair, or replacement at no cost to you, including return postage.

Your statutory rights are not affected.

Are you a trade professional or business customer? Unlock BIG trade benefits including a hidden discount on this product.

✓ Your own private trade discount code, valid for one year
✓ Preferential volume and repeat order rates
✓ Dedicated 1-to-1 WhatsApp support
✓ Bespoke product customisation
✓ Specialist product sourcing

→ Click Here to Unlock Your Free Trade Membership

Additional Information

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12. DELIVERY & RETURNS

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We regularly check to ensure these are clear, fair, and in-line with the industry.

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020 3740 1246

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Fast & Free Delivery

Complimentary standard delivery to all UK mainland addresses. No minimum spend.

Finance Options

Securely pay with all major credit cards, or pay in 3 with PayPal.

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