Products
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Powertrain and People HVAC
Integrated thermal management and HVAC
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Complete Thermal
Management Systems
All-in-one battery, power electronics, and cabin HVAC systems
Chassis-mounted complete thermal management
Double-deck bus complete thermal management
Rooftop-mounted complete thermal management
Driver and Passenger HVAC
HVAC solutions for climate comfort
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Cabin HVAC
Reliable cabin heating and air conditioning
Demisters for windscreen defogging
Rooftop air-conditioning systems
Heating
Fast-response cabin and floor heaters
Cabin heating modules
Floor heating modules
Heat Pump
Ultra-efficient reversible heat pumps
Driver cabin heat pump systems
Hot liquid heat pump systems
Powertrain Thermal Management
Thermal control of batteries, engines, motors and electronics
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Battery Thermal Management Systems
Advanced battery heating and cooling to life and performance
Mobile battery thermal management systems
Stationary battery thermal management systems
Rail battery thermal management systems
Coolers
Liquid-cooled radiator modules for BEV, ICE & FCEV
Power electronics and traction motor cooling systems
Hydrogen fuel cell cooling systems
Internal combustion engine cooling systems
Thermal System Components
Robust core components for thermal systems
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Auxiliary Heaters
Electric water heaters for clean, instant coolant heating
PTC and resistive electric water heaters.
HMI Controller
User-friendly HMI control panels for drivers
Climate control HMI panels
Electric Water Pump
Stable coolant flow for precise heating and cooling
Canned motor electric water pumps
Magnetic drive electric water pumps
Sensor
Precision sensors for intelligent thermal system monitoring
Temperature sensors for thermal monitoring
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About Us
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Generations of Thermal Management Expertise
Efficient cabin & saloon comfort & visibility for drivers, operators and passengers.
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Our Mission, Vision & Values
Capabilities
Leadership Team
Careers
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Services
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Supporting your business is our business
Efficient cabin & saloon comfort & visibility for drivers, operators and passengers.
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Services & Maintenance
Ensure your vehicle’s HVAC and cooling systems continue to provide optimum performance.
Aftermarket Parts & Products
Reliability is essential for vehicle OEMs and operators to minimise downtime.
Technical Support
We know how important it is for you to be able to quickly get an answer to a technical query.
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Sectors We Serve
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Thermal management experts in your sector
Efficient cabin & saloon comfort & visibility for drivers, operators and passengers.
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Bus & Coach
Comfort and performance across all routes
Commercial Vehicle
Thermal performance for every mile
Defence
Mission-critical thermal management
Off Highway
Helping OEMs break new ground
Rail
Helping to keep rolling stock rolling
Special Vehicle
Built for every unique application
Stationery Power
Keeping power systems performing
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Talk to an Expert

Heating and Cooling Solutions Ready for Today and Tomorrow

Products

Thermal Management Systems and Components for Heavy Vehicles and Machinery

Designing or evolving a heavy vehicle, machinery or stationary power platform? Grayson delivers proven thermal management systems and components engineered to control heat, improve efficiency and perform reliably across demanding applications and challenging environments.

Featured Systems​

From integrated thermal management systems to advanced battery and HVAC solutions, Grayson delivers engineered systems designed to manage heat, energy and comfort across demanding vehicle and machinery applications.
Our Capabilities

Catalogue or Custom – We Can Help

Be it a pre-validated standard product or bespoke system specific for your application, Grayson’s in-house design, testing, engineering, manufacturing and aftersales support enables us to deliver the right solution to meet your needs. Learn More
Case StudieS

Products in Action

Trusted by OEMs for almost five decades, Grayson delivers proven thermal solutions in real-world operation. Discover heating and cooling systems currently in action across heavy vehicle and machinery sectors today. Learn More

Featured Components

Alongside complete systems, Grayson supplies proven thermal components - including pumps, heaters, sensors and controls - designed to deliver reliable performance within complex thermal and HVAC architectures.

Solutions For Your Sector

Grayson supports OEMs across a wide range of sectors, applying decades of thermal expertise to overcome application-specific challenges and deliver reliable solutions under real-world operating conditions.
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Contact Us

Searching for reliable components or systems that can optimised efficiency and performance?

Contact our technical team to discuss your application, explore suitable solutions, or receive support selecting the right thermal management system.

Enquire About Our Thermal Management System

Discover More About Grayson

Learn more about Grayson’s engineering expertise, the markets we serve, and how we support customers throughout the full system lifecycle.