Diesel Generators

Ventech’s LHG Thermal Load Management System (TLMS) provides the superior solution for diesel generators suffering from wet stacking, cold-engine operation, and compromised aftertreatment reliability. The LHG increases generator reliability during low-load operation in extremely cold conditions.

The LHG Provides:​

  • Low Cost and Unmatched Performance

  • High Efficiency (>98%)

  • Solutions for Generators 40 kVA – 130kVA

  • Adjustable Load up to ~24 HP (18 kW)

  • Incremental Engine Heating up to 36kW

  • Near-Instantaneous Coolant and Exhaust Heat

  • Instantaneous Engine Load

  • Necessary Aftertreatment Supplemental Heat

  • Reliable DPF Regeneration and Performance 

The Ventech LHG TLMS loads the engine using proprietary auxiliary heating technology and converts the load into substantial coolant heat returned to the engine coolant circuit. The added mechanical load to the engine from the LHG doubles the generated coolant heat, and higher coolant temperature improves combustion, fuel economy, and reduces emissions. The LHG also creates increased exhaust gas temperature, improving engine performance and efficiency.










Ventech’s LHG solves the fundamental cause of wet stacking – under-loading of the engine and low engine temperature during operation. The technology has been proven on generator systems operating as far north as Prudhoe Bay on the Northern Slope of Alaska. Aftermarket kits are available for various diesel generator systems, and Ventech has consistently provided solutions for top-tier OEM customers like Wacker Neuson, Doosan, Generac, and Atlas Copco.

Thermal Load Management
Mobile portable mobile diesel or gasoline generator with a radiator black with remote cont