Bulk Transport

Bio Diesel Heating & DEF Heating Solutions

Turn-key fluid warming packages optimized for either single or multi-compartment fluid heating during transit or deliveries.


Thermex Engineering Systems is a custom design-build supplier of Fluid and Fuel Warming Systems, Idle Reduction SystemsFreeze Protection Systems and Specialty Equipment for bulk transport fleets with a focus on bio-diesel, DEF transport, and other fluid transport systems.


Maintaining proper fluid temperature for optimal transport and delivery can be a costly problem. Most available systems are inadequate and provide limited options for bio-diesel fuel heating and DEF heating while in transport.


Thermex systems offers modular, extensible solutions for fuel warming and bulk transport of fluids. Our team can help identify weak points in your delivery chain and create the optimal fuel warming package for your needs. Our design-build, modular component system is a perfect fit for most scenarios, and can be customized for your specific needs.


Bulk Transport – Fluid Warming – Components

Heat Probe - Fluid & Fuel Warming System


Multiple immersion tank heaters utilize hot coolant to keep bulk fluids warm (typically installed vertically).

Engine Coolant Manifold System

Coolant Manifold

Simplifies plumbing when using multiple heat exchangers.

Tundra Therm On-board Engine Coolant Heater


12V diesel fired coolant heater available with optional 120VAC shore power hook-up.

Quick Coupler Manifold

Quick Coupler Manifold

Provides hook-up connections for the PortaThaw® Cold Start System to rapidly heat up engine coolant

Battery Warmer From Engine Coolant Lines


Utilizes hot coolant to prolong battery life and helps maintain consistent voltage / amperage.

Fuel Line Heater - Fuel Warming System

Fuel Line Heater

In line heater utilizes hot coolant to keep the diesel fuel from gelling / waxing.

Therma Start - Idle Reduction Idle Management Start Stop System


Electronic monitoring system that eliminates unnecessary idling, saves fuel, prolongs oil change intervals and saves on maintenance costs.

Engine Coolant Heater Booster Pump

Booster Pump

Used to reduce the possibility of pressure drop in heating loops where multiple heat exchangers are used, or when there are long distances between heating lines.

Click to see these components in action on our Straight Truck example:

Bulk Transport - Tanker Truck Diagram

Click to see these components in action on our Tanker Trailer example:

Bulk Transport - Tanker Trailer Diagram