Espar Heater Systems is a leading manufacturer of fuel-operated and electric heating solutions for commercial vehicles, specializing in idle-reduction, engine pre-heating, and cab comfort technologies for cold-weather fleet operations.

1. Hydronic S3 Commercial: A high-performance coolant heater delivering rapid engine pre-heat in extreme cold, the Hydronic S3 Commercial features CAN bus integration, modular configuration, and enhanced diagnostics for commercial fleets operating in demanding climates.
2. Airtronic S3 Economy: This compact air heater offers quiet, efficient cab heating with low fuel consumption and precise temperature control. Ideal for sleeper cabs and light-duty commercial vehicles needing cost-effective interior climate management.
3. Hydronic M II 10kW: Built for medium- and heavy-duty applications, this robust 10kW coolant heater pre-warms engines and reduces idling. It’s engineered for extended operation in cold climates and supports emission reduction goals.
4. Hydronic L II 12kW: A powerful diesel-fired coolant heater designed for large engines and auxiliary power needs. It reduces engine wear, minimizes cold starts, and integrates with telematics systems for fleet monitoring.
5. Airtronic M2 B4L Commercial: Delivers fast, even heat with brushless motor efficiency, the B4L supports dual HVAC zones in larger cabs and RVs. Offers flexible installation and reliable cold-weather operation for commercial use.
6. Hydronic S3 Economy: An entry-level coolant heater with compact design, ideal for small fleets. It improves engine start reliability, reduces fuel use, and supports low-emission fleet goals with programmable start features.
7. Airtronic S3 Commercial: Designed for demanding fleets, this air heater provides consistent heat output, CAN bus support, and fault monitoring. It enhances driver comfort and reduces idling without compromising battery life.
8. E-Comfort+ Electric Heater: A zero-emission electric cab heater for EV and hybrid fleets, offering programmable timers, silent operation, and low power draw from vehicle batteries—fully compatible with 2025 EV incentive programs.
9. Multi-Zone HVAC Systems: Customizable heating and cooling systems for specialty vehicles and work trucks. These HVAC solutions improve thermal comfort, enable idle reduction, and integrate with Espar air and coolant heaters for full climate control.
10. Espar Digi-Max Controller: This digital interface allows precise control and diagnostics of Espar heaters. Offers programmable run times, fault codes, and real-time temperature adjustments, enhancing operational oversight for fleet managers.

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Company Resources
Presentations - Espar product catalogue 2012 The 2012 catalogue of complete heating systems from Espar.

Teleflex Thermal Systems specializes in advanced auxiliary heating solutions for commercial fleets, offering diesel-fired cab and coolant heaters that reduce idling, emissions, and fuel costs while enhancing cold-weather vehicle performance.

1. Proheat X45+ Air Heater: Designed for extreme cold climates, the X45+ provides up to 45,000 BTU/hr of heat output to warm the cab without idling. It features CAN-Bus integration, self-diagnostics, and optimized fuel efficiency for large trucks and off-highway equipment.
2. Proheat X30 Air Heater: Offering 30,000 BTU/hr, this compact air heater provides quiet, fuel-efficient cab heat while the engine is off. It reduces emissions and meets anti-idling regulations for fleets operating in northern climates.
3. Proheat M-Series Block Heater: A diesel-fired coolant heater with up to 17,000 BTU/hr output, the M-Series warms the engine block and reduces cold starts. Ideal for medium-duty trucks, it also improves engine longevity and cold weather readiness.
4. Proheat X15 Air Heater: The X15 delivers up to 15,000 BTU/hr for smaller commercial vehicles. It operates quietly and efficiently with low fuel and electrical consumption, ensuring compliance with idling restrictions and improved cab comfort.
5. Proheat A2 Coolant Heater: Provides 21,000 BTU/hr heat using diesel fuel to preheat engine coolant and the cab. It features automatic timers, remote diagnostics, and is compatible with telematics for fleet-wide heater control and monitoring.
6. Proheat Gen 4 Control Panel: The Gen 4 interface integrates Proheat devices via CAN-Bus and supports diagnostics, scheduling, and multi-unit control. Fleet operators benefit from simplified controls and enhanced monitoring of heating system performance.
7. Proheat Telemetry System: Proheat Connect allows remote monitoring and diagnostics via cellular and satellite links. It gives fleet managers real-time data on heater status, faults, and performance to proactively manage maintenance and reduce downtime.
8. Proheat Heater Fuel Supply Kits: Complete fuel supply kits for Proheat air and coolant heaters, ensuring efficient and reliable fuel delivery in cold temperatures. Designed for easy installation and compatibility with all Proheat heater models.
9. Proheat Scheduled Maintenance Service Program: A tailored service program offering routine inspections, part replacements, and performance diagnostics for Proheat systems. Helps fleets extend equipment life and avoid costly mid-season failures.
10. Proheat System Installation & Training Services: Factory-certified training and installation support for fleets implementing Proheat systems. Ensures correct integration into fleet vehicles, improves user operation, and reduces risk of heater malfunction during extreme weather.

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Company Resources
Presentations - X45 Auxiliary Heater for School Buses Brochure A brochure detailing the powerful heater for school buses.   Presentations - Proheat X45 for Coaches Brochure A brochure detailing the features of the coach auxiliary heater.   Presentations - Air Heater Product Data Sheet A sheet detailing the features of the air heater.   Presentations - Proheat X45 Brochure A brochure on the features of the X45 auxiliary heater.

Webasto announced its upgraded Air Top Evo lineup designed for improved fuel efficiency and faster cab heating, optimized for large commercial fleets operating in extreme cold environments.

1. Air Top Evo 40: Provides up to 13,650 BTU/h of cab heat output and features variable heat settings for fuel savings. Designed for mid-sized commercial vehicles needing fast warm-up, low emissions, and reliable cold weather performance.
2. Air Top Evo 55: Delivers up to 18,800 BTU/h and ideal for heavy-duty vehicles. Offers intelligent diagnostics and altitude compensation, ensuring consistent heat performance and reduced idling in high-altitude or extreme cold operations.
3. Thermo Top Evo: A compact coolant heater offering up to 17,200 BTU/h of engine pre-heating power. Reduces engine wear and fuel consumption by pre-warming the engine block and cab before start-up in cold climates.
4. Thermo Pro 90: High-output coolant heater providing up to 31,000 BTU/h for Class 6-8 trucks and buses. Designed to pre-heat engine coolant and passenger compartments, enabling reduced idling and faster start-up efficiency in freezing conditions.
5. SmarTemp Control 3.0: Advanced digital control interface for Webasto heaters, offering customizable temperature management, timer functions, and diagnostic alerts. Enhances energy savings and operational safety by giving drivers precise control of in-cab heating systems.
6. Fuel Operated Heater Integration Kit: Provides all necessary components to seamlessly integrate Webasto fuel-operated heaters into various fleet vehicle platforms. Ensures quick installation, optimal fuel efficiency, and compatibility with OEM engine management systems.
7. Idle Reduction Heating Package: Complete system package designed to eliminate engine idling for heat by combining air and coolant heaters. Helps fleets achieve compliance with anti-idling regulations and qualify for GHG-reduction incentives in 2025.
8. Thermo 200 ST: Robust high-capacity heater for specialty applications needing up to 68,000 BTU/h. Ideal for large off-road or mining vehicles, this system pre-heats the engine and provides cabin heat independent of engine operation.
9. Webasto eThermo Top Eco: Electric coolant heater for light-duty zero-emission vehicles, using battery power to preheat engine or cabin. Ideal for EV fleets, ensuring thermal comfort and battery performance during cold starts without emissions.
10. Mobile Heating Diagnostic Software (WTT): Webasto Thermo Test (WTT) diagnostic software enables technicians to monitor, update, and troubleshoot heater systems via PC interface. Enhances fleet maintenance by reducing heater downtime and improving service response.

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Company Resources
Presentations - Product data sheet of Thermo 90 ST A data sheet on the Webasto truck heating system Thermo 90 ST, for extreme climates and gets the job done in the harshest conditions.   Presentations - ProductDataSheet DBW 2010 A data sheet explaining the Webasto DBW 2010, DBW 2016 robust water heating system for medium to heavy commercial vehicles.