• FEATURES

  • IN THE BOX

  • WARRANTY

  • DELIVERY & RETURNS

  • 🔓 UNLOCK TRADE PRICE

120 Litre Buffer Tank — Hydraulic Separation and Thermal Storage — The CE-B120 provides 120 litres of buffered water volume within the heat pump circuit, delivering effective hydraulic separation and thermal storage to support stable, efficient system operation at greater scale than the CE-B60.

Reduces Heat Pump Cycling — Compressor Longevity Protected — By maintaining a substantial thermal buffer between the heat pump and the distribution circuit, the CE-B120 actively reduces compressor short-cycling — extending operational lifespan and improving overall system efficiency throughout.

Integrated Expansion Volume — Separate Vessel Eliminated — Configurable to provide 100 litres of buffer water alongside 20 litres of dedicated expansion volume, negating the need for a separate expansion vessel subject to system piping arrangement — reducing component count and simplifying installation.

50mm Foam-Filled Insulation — High Thermal Efficiency — A full 50mm foam-filled insulation jacket minimises standing heat losses from the buffer volume, maintaining stored water temperature and reducing unnecessary energy consumption between heat pump cycles.

Flexible Installation Configuration — Wall Hung, Freestanding, or Stacked — Designed to be installed wall-hung, freestanding, or stacked directly above or below a hot water cylinder, accommodating a wide range of plant room layouts and space constraints without compromise.

Comprehensive Connection Array — Ready for Any System Configuration — Five 1½″ female sockets, one ½″ probe pocket, one ¾″ drain-off socket underneath, one 2¼″ immersion port, and one ½″ male PRV fitting provide a fully specified connection layout — adaptable to virtually any system design without additional modification.

✔ 1 x Buffer Tank

12-Month Manufacturer Guarantee: This product is backed by a 12-Month manufacturer guarantee, meaning it is built to last and protected against manufacturing defects for long-term peace of mind. If a qualifying fault occurs during normal use, the manufacturer will repair or replace the product to ensure you receive a reliable, high-quality item. This guarantee applies to manufacturing defects only and does not cover cosmetic wear, misuse, incorrect installation, or poor maintenance. Any remedy is provided at the manufacturer’s discretion. If you need to get in touch with us about this, please write to us at hello@icecoldspice.com

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 120L Stainless Buffer Tank

FREE DELIVERY*

£489.95
Save 0% today

✔ 120L volume, hydraulic separation buffer

✔ Reduces cycling, protects compressor lifespan

✔ Integrated expansion, 100L + 20L split

✔ 50mm insulation, reduced thermal losses

✔ Multi-install, wall, floor, stacked options

✔ Multiple ports, full system connectivity

 

The Cool Energy 120L Stainless Buffer Tank CE‑B120 is crafted from resilient stainless steel with 50 mm of high efficiency foam insulation, stabilising your hydronic heating or cooling system by reducing pump cycling and smoothing temperature fluctuations. Designed for wall hung, free standing or stacked installation above or below a hot water cylinder, it incorporates multiple 1½” and accessory ports plus an optional fitting pack for seamless integration. With internal expansion capacity and a compact yet substantial build, it harmonises system efficiency with enduring reliability.

Colour

Quantity

Buy now for FREE delivery to your door within 4 working days.

Free Shipping

Free shipping on any order of $150 

or more.

Full Refund

If your product aren’t perfect, return them for a full refund

Secure Online Payment

secure payment
worldwide

  • FEATURES

  • IN THE BOX

  • WARRANTY

  • DELIVERY & RETURNS

  • 🔓 UNLOCK TRADE PRICE

120 Litre Buffer Tank — Hydraulic Separation and Thermal Storage — The CE-B120 provides 120 litres of buffered water volume within the heat pump circuit, delivering effective hydraulic separation and thermal storage to support stable, efficient system operation at greater scale than the CE-B60.

Reduces Heat Pump Cycling — Compressor Longevity Protected — By maintaining a substantial thermal buffer between the heat pump and the distribution circuit, the CE-B120 actively reduces compressor short-cycling — extending operational lifespan and improving overall system efficiency throughout.

Integrated Expansion Volume — Separate Vessel Eliminated — Configurable to provide 100 litres of buffer water alongside 20 litres of dedicated expansion volume, negating the need for a separate expansion vessel subject to system piping arrangement — reducing component count and simplifying installation.

50mm Foam-Filled Insulation — High Thermal Efficiency — A full 50mm foam-filled insulation jacket minimises standing heat losses from the buffer volume, maintaining stored water temperature and reducing unnecessary energy consumption between heat pump cycles.

Flexible Installation Configuration — Wall Hung, Freestanding, or Stacked — Designed to be installed wall-hung, freestanding, or stacked directly above or below a hot water cylinder, accommodating a wide range of plant room layouts and space constraints without compromise.

Comprehensive Connection Array — Ready for Any System Configuration — Five 1½″ female sockets, one ½″ probe pocket, one ¾″ drain-off socket underneath, one 2¼″ immersion port, and one ½″ male PRV fitting provide a fully specified connection layout — adaptable to virtually any system design without additional modification.

✔ 1 x Buffer Tank

12-Month Manufacturer Guarantee: This product is backed by a 12-Month manufacturer guarantee, meaning it is built to last and protected against manufacturing defects for long-term peace of mind. If a qualifying fault occurs during normal use, the manufacturer will repair or replace the product to ensure you receive a reliable, high-quality item. This guarantee applies to manufacturing defects only and does not cover cosmetic wear, misuse, incorrect installation, or poor maintenance. Any remedy is provided at the manufacturer’s discretion. If you need to get in touch with us about this, please write to us at hello@icecoldspice.com

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

01. DOWNLOAD PRODUCT DATA SHEET

02. WHAT IS THE PURPOSE OF A BUFFER TANK IN A HEAT PUMP SYSTEM?

A buffer tank adds thermal mass and increases system water volume, helping to maintain stable flow rates through the heat pump. This reduces compressor short cycling, stabilises flow and return temperatures, and improves overall efficiency — particularly in zoned systems or low-load conditions.

03. HOW DO I DETERMINE THE CORRECT BUFFER TANK SIZE FOR MY HEAT PUMP?

Buffer tank sizing depends on heat pump output, control strategy, and system volume. A common design guideline is approximately 10–20 litres per kW of heat pump capacity, though requirements vary by manufacturer and system layout. Larger systems or highly zoned installations may benefit from increased buffer volume.

04. CAN COOL ENERGY BUFFER TANKS ACT AS LOW-LOSS HEADERS?

Yes. Cool Energy buffer tanks can function as combined buffer vessels and low-loss headers, providing hydraulic separation between the heat pump circuit and the heating distribution circuit. Multiple connection ports allow flexible pipework arrangements while maintaining stable flow through the heat pump.

05. WHEN IS A BUFFER TANK RECOMMENDED FOR HEAT PUMP INSTALLATIONS?

A buffer tank is recommended where the system water volume is insufficient, where multiple heating zones are controlled independently, or where mixed emitters such as radiators and underfloor heating are used. Many heat pump manufacturers require a buffer tank to meet flow and volume requirements and to protect warranty conditions.

06. WHO SHOULD INSTALL THE BUFFER TANK?

A Cool Energy buffer tank or low loss header should be installed by a qualified heating engineer with experience in heat pump systems. Where the buffer tank forms part of a heat pump installation, the overall system must be designed and commissioned by an MCS-certified installer to meet manufacturer requirements and maintain system warranty.

07. WHEN WILL I RECEIVE MY ORDER?

Please expect your delivery to arrive within 7 working days. You will receive email alerts once you've placed your order.

08. DELIVERY & RETURNS

Click to read our shipping policy and our returns policy.

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

Call our friendly team for order support

We Add Value To You

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.

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.

Our Happy Customers

We're rated excellent on Trustpilot.