Forestry Industry


Heavy Equipment Protection

Minimize those nasty component breakdowns and hydraulic failures with a complete 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 the forestry industry.


Maintaining your heavy equipment in cold weather can be challenging. Especially when unexpected storms hit unexpectedly, you are left with assets that are dead, won’t start, or have gelled-up hydraulics.

Couple this with deadlines that are behind schedule and quotas, and a critical hardware failure can just add fuel to the fire.


Thermex provides a modular system for managing cold weather environments on heavy equipment so you can get back to work fast. Cutting downtime to a minimum, lowering maintenance costs and saving you time, money, and stressful days on the job.


Forestry – 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 Log Loader example:

Forestry - Log Loader Diagram