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Getting Technical - cuz' we're not making this stuff up.

Did You Know?

Running cold causes incomplete combustion, carbon and soot buildup.

"If a diesel engine continually operates at cold temperatures, it can result in the formation of sludge in the crankcase....operating in cold temperatures without proper temperature regulation can also lead to carbon buildup."

"...operation, such as excessive idling, short run time, light work and city type driving, all contribute to deposit formation.... All these operating conditions do not allow efficient combustion [and] contribute to deposit build up."

"Common causes for a clogged or blocked DPF filter include excessive idling, short trips with the engine not reaching operating temperature..." The Ultimate Guide to DPF Filter Cleaning and Engine Carbon Cleaning - News | NoveNews

Running cold could rob your engine of 10% of its horsepower in 10,000 miles.

"Carbon buildup is a bigger problem in diesel engines than it is with gasoline engines.... Studies have been done ... taking newer vehicles ... At 15,000 miles, [they] had 324 "all-wheel horsepower" ...  [after 10,000 miles] the horsepower was all the way down to just 305. That's a drop of almost ten percent in ... 10,000 miles." Carbon buildup in diesel engines (

Running cold results in lower fuel-economy and more frequent regen.

The LHG keeps your engine from running cold.

If protecting your engine and engine components is reason enough to get a Ventech LHG, click here to order yours today.

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If you want to know what else the Ventech LHG can do for you, keep scrolling. 

The graph below shows real-world data comparing a diesel pickup driving in cold conditions with the LHG and without the LHG.
Watch the video of the side-by-side test drive that produced the graph data.

Your truck was a large investment...

Tens of thousands of dollars - for some, over six figures!

Diesel trucks are tough, but driving under cold conditions can increase regen, decrease fuel economy, and cause expensive damage.* And when something does go wrong, costs start in the hundreds just for the diagnosis.

Because the Ventech LHG protects your diesel engine, engine components like the turbocharger, and your intricate after-treatment system from the damage caused by running your engine cold, it also protects the substantial investment you have made in your truck and reduces the chance you'll need expensive repairs.

"Wait... Will this thing void my warranty!?"


Check out page 2 of the Q&A PDF above.

Get Your LHG >

For dealer/upfitter enquiries

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