Efficiency Product Comparison | Videos FAQ Technical Presentation

Efficiency | Product Comparison | Videos | FAQ | Technical Presentation


Not only does the Heatshot unit save you time by reducing the need to leave the engine idling in order to defrost the windshield, but there are also significant environmental and fuel-saving benefits.

Reducing Vehicle Idling

A vehicle is idling when its engine is running but it is not moving. One of the primary reasons drivers leave their vehicles idling is to defrost the windshield in the winter.

Idling in the United States alone uses more than 6 billion gallons of fuel at a cost of more than $20 billion each year.

Energy Efficiency

Air Pollution, Wasted Fuel and Money

Unnecessary idling releases a variety of pollutants, such as nitrogen oxides, carbon monoxide, carbon dioxide, particulate matter and other chemicals that form ground-level ozone and contribute to global warming.

Idling wastes fuel and money. When idling, a typical diesel-powered truck burns almost a gallon of fuel per hour. Drivers that eliminate unnecessary idling can save significant dollars in fuel costs each year. For instance, by not idling 30 minutes a day for one year, a truck driver saves 125 gallons of diesel, and therefore, approximately $483 in fuel costs (assuming a diesel fuel price of $3.86 per gallon) —while also preventing at least 101 pounds of air pollution and 2,775 pounds of carbon dioxide from entering the atmosphere.  Based on these statistics, the Heatshot unit will pay for itself in 3 months!

To estimate how much you can save by idling less, use Argonne National Laboratory’s Idling Calculator.

Engine Wear-and-Tear

Extended idling causes engine damage. Diesel engines were designed to operate at peak efficiency when running wide open. At low idle, the cylinder temperature drops causing incomplete combustion, which in turn leads to carbon build up on the valves. Engine manufacturers generally recommend that drivers limit idling.

  • Caterpillar Inc. cautions drivers to “… Avoid excess idling. If the vehicle is parked for more than five minutes, stop the engine. Excessive idling can cause carbon buildup and/or excessive idling can cause the engine to ‘slobber’. This is harmful to the engine.”
  • IC Corporation’s engine manual states that “…Excessive idling reduces fuel economy, and may decrease oil life.”
  • Cummins Inc. suggests idling for only three to five minutes before operating with a load.


Doing Our Share for Cleaner Air from the City Of Chicago
Reducing Vehicle Idling from Argonne International