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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
Smart multi-functional systems managing all thermal demands

Powertrain and People Thermal Management

Products

Integrated Thermal Management for Modern Electrified Platforms

Grayson’s Powertrain and People solutions of complete thermal management solutions deliver integrated, multi-functional thermal management unifying HVAC, battery thermal management and power electronics cooling.

Designed to reduce system complexity and optimise efficiency, our complete systems offer configurable options and intelligent control to suit any electrified application.

Configurable. Comprehensive. Complete.

Optimal Efficiency and Performance

As vehicle platforms become more electrified with higher voltages and less packaging space, managing multiple thermal systems independently adds unnecessary complexity. Our complete thermal solutions integrate cabin climate, battery and power electronics thermal management into single, easy-to-integrate modules, simplifying system designs and improving efficiency.
Our Capabilities

Configurable Systems to Suit Your Needs

Built on a common, modular platform, Grayson’s integrated HVAC systems allow functions and sub-systems to be added or removed. Tailor thermal performance, efficiency and complexity to specific vehicle, climate and operational requirements. Learn More

Featured Systems​

Featured CTMS solutions include chassis-mounted architectures, rooftop-mounted systems and double-deck bus configurations designed around platform packaging and efficiency targets.

More Thermal System Component Solutions

Grayson supports ICE, BEV and FCEV platforms with an integrated portfolio of thermal systems, HVAC solutions and reliable components.

Contact Us

Do you want to simplify your thermal architecture and achieve greater thermal efficiency without sacrificing performance?

Contact our team of thermal experts to discuss integrated architecture options, packaging constraints and efficiency targets for your platform.

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Enquire About Our Powertrain and People HVAC Solutions

Discover More About Grayson

Learn more about Grayson’s engineering expertise, the sectors we support and the aftersales services that protect long-term system performance.