Liquid Cooling

What is Liquid Cooling?

Liquid cooling uses fluid-based systems to capture and remove heat from high-density servers and other data centre equipment.

1

Moves heat efficiently

Liquid cooling carries heat away from processors and components more directly than room air alone.

2

Supports higher rack densities

It helps cool concentrated AI, GPU and high-performance computing infrastructure.

3

Uses different cooling designs

Options include direct-to-chip systems, rear-door heat exchangers and immersion cooling.

The Role of Liquid Cooling in Modern IT Environments

Liquid cooling removes concentrated heat from high-density processors, GPU servers and other infrastructure that can exceed the practical limits of air cooling.

The right design helps support demanding AI and high-performance computing workloads while improving thermal control and reducing pressure on room-level cooling systems.

We assess rack density, server compatibility, facility services and future workloads, then recommend liquid cooling that can be integrated safely without unnecessary disruption, oversizing or redesign.

Why Organisations Deploy Liquid Cooling

Liquid cooling helps organisations remove concentrated heat from high-density infrastructure that can exceed the practical limits of conventional air cooling.

Supporting high-density AI workloads

Direct heat removal helps cool powerful GPU servers and high-performance computing systems.

Increasing rack power density

More processing capacity can be deployed within each rack without relying solely on room air.

Improving cooling efficiency

Liquid transfers heat more directly from processors and other high-output components.

Reducing data centre energy costs

Lower fan demand and reduced room-cooling pressure can improve overall energy efficiency.

Preparing for next-generation infrastructure

Liquid-ready facilities can support future processors with higher thermal design requirements.

Maximising performance and reliability

Consistent component temperatures help reduce throttling, thermal stress and avoidable shutdowns.

Typical Enterprise Use Cases

Liquid cooling supports high-density infrastructure where conventional air cooling cannot remove concentrated heat efficiently enough.


Cooling GPU Clusters

Transfers heat directly from high-output processors used across dense accelerated computing environments.

Supporting AI Training Infrastructure

Maintains stable temperatures during long-running, computationally intensive model training workloads.

Enabling High-Density Rack Deployments

Supports more compute and power per rack without relying entirely on room-level airflow.

Improving Energy Efficiency

Reduces fan demand and pressure on conventional cooling systems by capturing heat closer to components.

Reducing Thermal Constraints

Helps prevent throttling and overheating from limiting the performance of demanding infrastructure.

Preparing for Next-Generation AI

Provides a cooling path for future processors and systems with higher power and heat requirements.

Key Considerations When Deploying Liquid Cooling

Getting these six areas right will help your team introduce liquid cooling safely, support high-density systems and avoid expensive facility or maintenance problems.


01

Heat Load Requirements

Calculate the heat output of processors and high-performance computing systems to identify where liquid cooling is required.

02

Rack Density

Assess power density across NVLink-connected GPU systems before selecting the cooling equipment.

03

Facility Readiness

Check water, power, drainage and space requirements across the existing data centre infrastructure.

04

Cooling Architecture

Choose direct-to-chip, rear-door or immersion designs around compatible high-density AI systems.

05

Maintenance Strategy

Define leak response and servicing alongside infrastructure monitoring and staff procedures.

06

Future Scalability

Plan cooling capacity for denser GPU systems and future composable infrastructure.

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What We Assess

We work with your facilities, infrastructure and operations teams to determine whether liquid cooling is required, whether the site can support it and how it can be introduced safely. The result is a clear view of facility changes, cooling design, operational responsibilities and future capacity.

Assessment Area How We Assess It
01

Facility Readiness

We establish whether the building and plant can support liquid-cooled infrastructure.

We review space, water quality, drainage, structure, access, pipe routes and heat rejection requirements before deployment.

02

Rack Heat Loads

We determine which systems genuinely require liquid cooling.

We assess processor, server and rack heat output, workload duration and expected growth so the design targets the right equipment.

03

Cooling Infrastructure

We evaluate the most suitable method for removing concentrated heat.

We compare direct-to-chip, rear-door and immersion designs, including coolant distribution units, compatibility and failure containment.

04

Power Availability

We confirm that the electrical environment can support planned rack densities.

We review supply, distribution, backup power, protection and expected growth alongside the proposed cooling architecture.

05

Operational Resilience

We define how faults, leaks and maintenance will be managed without disrupting services.

We assess isolation, redundancy, monitoring, alarms, maintenance access, rollback procedures and team responsibilities.

06

Expansion Requirements

We plan how liquid-cooling capacity will grow with future infrastructure.

We review vendor roadmaps, higher-density systems, pipe and plant capacity, and expansion space to avoid repeated redesign.

Project Deliverables

We turn the assessment findings into practical deliverables your facilities, infrastructure and procurement teams can use to plan and approve a safe liquid cooling deployment.

Facility Assessment Report

A summary of heat loads, facility readiness, power, water, drainage, operational risks and required changes.

Liquid Cooling Design

A proposed architecture covering the cooling method, distribution, heat rejection, monitoring, isolation and resilience.

Technology Recommendations

Suitable direct-to-chip, rear-door or immersion options selected around equipment and facility requirements.

Bill of Materials (BoM)

A defined list of cooling equipment, controls, pipework, accessories, installation needs and support.

Deployment Plan

A phased plan covering facility preparation, installation, testing, commissioning, migration and operational handover.

Ongoing Lifecycle Support

Continued support with maintenance, monitoring, expansion, upgrades, vendor coordination and future rack-density changes.

Why Work With Steel City Consulting

We’re trusted by IT teams planning high-density compute, AI and data centre infrastructure. Our consultants help you assess and deploy liquid cooling solutions, with practical support across thermal requirements, compatibility, integration, resilience and lifecycle planning.

  • Official multi-vendor partner Pricing, licensing and upgrade routes across leading infrastructure technology vendors.
  • Decades of IT expertise Hands-on consultancy across networking, compute, storage and security.
  • UK-wide support network Certified engineers and technicians for on-site projects, SLAs and break/fix cover.

Liquid Cooling

Book a consultation with our specialists

Tell us about your current infrastructure, operational challenges and project requirements. We’ll review compatibility, integration and support needs, then identify the most suitable route forward.

Liquid Cooling Procurement & Vendor Support

We help you compare liquid cooling approaches, balancing rack density, heat load, facility requirements, monitoring, serviceability, support and operational fit.

Right-sized solution selection

We match platform capabilities, infrastructure requirements and service needs to your environment, workloads and operational priorities.

Vendor support & service planning

We help you define suitable warranties, support coverage, subscriptions and professional services for your operating model.

Compatibility & integration planning

We assess existing infrastructure, software, facilities, data sources and workflows to ensure each element works together effectively.

Deployment & lifecycle planning

We help you plan implementation, migration, support and future upgrades across the full solution lifecycle.

Need help assessing liquid cooling?

Speak to our experts about selecting, integrating or deploying liquid cooling for high-density infrastructure.

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Explore Related Technology

If you're assessing liquid cooling, these categories cover the high-density compute, rack, storage and networking platforms most likely to influence thermal demand and cooling design.

AI & GPU Servers

High-density accelerated systems that can exceed the practical limits of conventional air cooling and drive requirements for direct-to-chip or other liquid cooling approaches.

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Rack Servers

Rack platforms whose processor density, chassis design and deployment scale determine whether liquid cooling is appropriate beyond dedicated GPU systems.

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High-Performance SAN Storage

Performance-focused storage infrastructure that contributes to rack power and thermal load when deployed alongside dense compute in high-throughput environments.

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AI Networking

High-speed switches and interconnects that form part of dense AI racks and must be included in complete rack-level power, airflow and cooling calculations.

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FAQ

How do I know whether liquid cooling is suitable for us?

Liquid cooling is suitable when your high-density equipment creates heat loads that air cooling cannot manage efficiently within the available space.

The decision depends on both the servers you plan to deploy and the facility supporting them. We assess compute demand, current cooling and operational readiness before recommending a route. Book a liquid cooling suitability assessment.

How do direct-to-chip and immersion cooling compare?

Direct-to-chip cooling targets the hottest components, while immersion cooling places compatible equipment in fluid to remove heat across more of the system.

Direct-to-chip designs often fit more easily into an existing data centre. Immersion can support greater density, but it changes how your team installs, handles and maintains equipment, making the wider operating model an important part of the decision.

Can liquid cooling work alongside our existing air cooling?

Yes, liquid cooling can handle the highest heat loads while your existing air cooling continues to manage the remaining equipment and room.

This hybrid approach can reduce facility change while supporting denser systems. The remaining air load still needs to be calculated properly, otherwise the new design may solve one hotspot while leaving another part of your environment constrained.

What needs to be compatible with a liquid cooling system?

Your servers, racks, coolant system, heat rejection, controls and maintenance processes all need to work together as one supported design.

Server compatibility alone does not confirm that your facility is ready. We review the full cooling path and support requirements before equipment selection. Book a liquid cooling compatibility and facility assessment.

How can liquid cooling benefit my IT team and business?

Liquid cooling can create capacity for high-performance infrastructure, improve thermal stability and reduce the space required compared with lower-density designs.

For your IT team, this provides a clearer route to supporting AI or accelerated compute growth. The business value depends on whether the extra capacity, space and energy benefits justify changes to your facility and operating processes.

Can you plan a phased liquid cooling deployment?

Yes, we can assess site readiness, define required facility changes and align a phased introduction with your upcoming infrastructure refreshes.

This helps you avoid major changes before the demand exists and reduces disruption during implementation. Book a liquid cooling planning consultation to define the first deployment, future expansion and responsibilities across IT and facilities.

Get expert advice, with no obligation.

From new deployments to hardware refreshes and network reviews, our specialists can help you identify what needs to change and how to move forward with confidence.
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