Construction & Aggregates

Hydraulic Fluid Warming Systems

Minimize those nasty component breakdowns and hydraulic failures using the ultimate cold weather protection system


Thermex Engineering Systems is a custom design-build supplier of Fluid and Fuel Warming Systems, Idle Reduction SystemsFreeze Protection Systems and Specialty Equipment for heavy construction equipment.


Keeping your hydraulic fluid maintained at a level temperature can be a challenge in freezing temperatures. Heavy construction equipment and machinery needs special attention to prevent lockups and equipment failure, often resulting in over idling just to keep batteries, engines and fluids from freezing up, causing downtime and additional costly maintenance.


Thermex systems approaches these problems differently. By recycling heat from the coolant system to warm other critical systems, we can prevent over-idling, saving money on fuel costs and maintain your equipment at predictable level temperatures, with reliable results.

Construction Industry - Crane Truck

Construction & Aggregates – Components

Battery Warmer From Engine Coolant Lines


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

Heat Probe - Fluid & Fuel Warming System


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

Fuel Line Heater - Fuel Warming System

Fuel Line Heater

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

Tundra Therm On-board Engine Coolant Heater


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

Portathaw Cold Start System


Diesel-fired cold start system designed for rapid warm up of frozen equipment.

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 Manifold System

Coolant Manifold

Simplifies plumbing when using multiple heat exchangers.

Quick Coupler Manifold

Quick Coupler Manifold

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

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 Articulated Truck example:

Construction - Articulated Truck Diagram

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

Construction - Lube Truck Diagram

Click to see these components in action on our Rock Crusher example:

Construction - Rock Crusher Diagram