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Powertrain and People HVAC
Integrated thermal management and HVAC
Complete Thermal
Management Systems
All-in-one battery, power electronics, and cabin HVAC systems
CM-Series
Chassis-mounted complete thermal management
DB-Series
Double-deck bus complete thermal management
RM-Series
Rooftop-mounted complete thermal management
Need Something Bespoke?
We help OEMs develop tailored thermal solutions for unique applications, environments and duty cycles.
Talk to an Expert
Driver and Passenger HVAC
HVAC solutions for climate comfort
Cabin HVAC
Reliable cabin heating and air conditioning
DM-Series
Demisters for windscreen defogging
RA-Series
Rooftop air-conditioning systems
Heating
Fast-response cabin and floor heaters
CH-Series
Cabin heating modules
FH-Series
Floor heating modules
Heat Pump
Ultra-efficient reversible heat pumps
DH-Series
Driver cabin heat pump systems
LH-Series
Hot liquid heat pump systems
Need Something Bespoke?
We help OEMs develop tailored thermal solutions for unique applications, environments and duty cycles.
Talk to an Expert
Powertrain Thermal Management
Thermal control of batteries, engines, motors and electronics
Battery Thermal Management Systems
Advanced battery heating and cooling to life and performance
M-Series
Mobile battery thermal management systems
S-Series
Stationary battery thermal management systems
R-Series
Rail battery thermal management systems
Coolers
Liquid-cooled radiator modules for BEV, ICE & FCEV
PE-Series
Power electronics and traction motor cooling systems
FC-Series
Hydrogen fuel cell cooling systems
CE-Series
Internal combustion engine cooling systems
Need Something Bespoke?
We help OEMs develop tailored thermal solutions for unique applications, environments and duty cycles.
Talk to an Expert
Thermal System Components
Robust core components for thermal systems
Auxiliary Heaters
Electric water heaters for clean, instant coolant heating
EW-Series
PTC and resistive electric water heaters.
HMI Controller
User-friendly HMI control panels for drivers
CA-Series
Climate control HMI panels
Electric Water Pump
Stable coolant flow for precise heating and cooling
CP-Series
Canned motor electric water pumps
MD-Series
Magnetic drive electric water pumps
Sensor
Precision sensors for intelligent thermal system monitoring
TC-Series
Temperature sensors for thermal monitoring
About Us
Generations of Thermal Management Expertise
Efficient cabin & saloon comfort & visibility for drivers, operators and passengers.
Our Mission, Vision & Values
Capabilities
Leadership Team
Careers
Services
Supporting your business is our business
Efficient cabin & saloon comfort & visibility for drivers, operators and passengers.
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.
Sectors We Serve
Thermal management experts in your sector
Efficient cabin & saloon comfort & visibility for drivers, operators and passengers.
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
Talk to an Expert
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Products
Back
Powertrain and People HVAC
Integrated thermal management and HVAC
View Powertrain and People HVAC
Complete Thermal
Management Systems
All-in-one battery, power electronics, and cabin HVAC systems
CM-Series
Chassis-mounted complete thermal management
DB-Series
Double-deck bus complete thermal management
RM-Series
Rooftop-mounted complete thermal management
Need Something Bespoke?
We help OEMs develop tailored thermal solutions for unique applications, environments and duty cycles.
Talk to an Expert
Driver and Passenger HVAC
HVAC solutions for climate comfort
View Driver and Passenger HVAC
Cabin HVAC
Reliable cabin heating and air conditioning
DM-Series
Demisters for windscreen defogging
RA-Series
Rooftop air-conditioning systems
Heating
Fast-response cabin and floor heaters
CH-Series
Cabin heating modules
FH-Series
Floor heating modules
Heat Pump
Ultra-efficient reversible heat pumps
DH-Series
Driver cabin heat pump systems
LH-Series
Hot liquid heat pump systems
Need Something Bespoke?
We help OEMs develop tailored thermal solutions for unique applications, environments and duty cycles.
Talk to an Expert
Powertrain Thermal Management
Thermal control of batteries, engines, motors and electronics
View Powertrain Thermal Management
Battery Thermal Management Systems
Advanced battery heating and cooling to life and performance
M-Series
Mobile battery thermal management systems
S-Series
Stationary battery thermal management systems
R-Series
Rail battery thermal management systems
Coolers
Liquid-cooled radiator modules for BEV, ICE & FCEV
PE-Series
Power electronics and traction motor cooling systems
FC-Series
Hydrogen fuel cell cooling systems
CE-Series
Internal combustion engine cooling systems
Need Something Bespoke?
We help OEMs develop tailored thermal solutions for unique applications, environments and duty cycles.
Talk to an Expert
Thermal System Components
Robust core components for thermal systems
View Thermal System Components
Auxiliary Heaters
Electric water heaters for clean, instant coolant heating
EW-Series
PTC and resistive electric water heaters.
HMI Controller
User-friendly HMI control panels for drivers
CA-Series
Climate control HMI panels
Electric Water Pump
Stable coolant flow for precise heating and cooling
CP-Series
Canned motor electric water pumps
MD-Series
Magnetic drive electric water pumps
Sensor
Precision sensors for intelligent thermal system monitoring
TC-Series
Temperature sensors for thermal monitoring
View All Products
Talk to an Expert
About Us
Back
Generations of Thermal Management Expertise
Efficient cabin & saloon comfort & visibility for drivers, operators and passengers.
View About Us
Our Mission, Vision & Values
Capabilities
Leadership Team
Careers
Talk to an Expert
Services
Back
Supporting your business is our business
Efficient cabin & saloon comfort & visibility for drivers, operators and passengers.
View Services
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.
Talk to an Expert
Sectors We Serve
Back
Thermal management experts in your sector
Efficient cabin & saloon comfort & visibility for drivers, operators and passengers.
View Sectors We Serve
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
Talk to an Expert
Talk to an Expert
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Author: James Coates

Elementor #10459

Grayson

Grayson Thermal Systems design, manufacture, and supply driveline cooling, heating, and air conditioning products to low volume vehicle industries worldwide, including bus, coach, rail, off-highway, commercial vehicles and more.

UK Office

Wharfdale House, 257 Wharfdale Road,

Tyseley, Birmingham B11 2DP, UK

+44 (0) 121 700 5600

USA Office

980 Hurricane Road, Franklin, Indiana

IN 46131 United States

+1 (317) 739-3290

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Products

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Grayson Thermal Systems is the trading name for Grayson Automotive Services Limited. Copyrights Reserved by Grayson 2026

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  • Home
  • About Us
    • Our Mission, Vision and Values
    • Our Capabilities
    • Leadership Team
    • Careers
  • Products
    • Driver and Passenger HVAC
      • Cabin HVAC
        • DM-Series
        • RA-Series
      • Heat Pump
        • DH-Series
        • LH-Series
      • Heating
        • CH-Series
        • FH-Series
    • Powertrain Thermal Management
      • Battery Thermal Management System
        • M-Series
        • R-Series
        • S-Series
      • Cooler
        • CE-Series
        • FC-Series
        • PE-Series
    • Powertrain and People HVAC
      • Complete Thermal Management Systems
        • CM-Series
        • DB-Series
        • RM-Series
    • Thermal System Components
      • Auxiliary Heater
        • EW-Series
      • Electric Water Pump
        • CP-Series
        • MD-Series
      • HMI Controller
        • CA-Series
      • Sensor
        • TC-Series
  • Services
    • Servicing and Maintenance
    • Aftermarket Parts and Products
    • Technical Support
  • Sectors
    • Bus & Coach
    • Commercial Vehicles
    • Defence
    • Off Highway
    • Rail
    • Special Vehicles
    • Stationary Power
  • Downloads
  • Insights
    • News
    • Events
    • Case Studies
    • Press Releases
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