
The TriPac APU is an auxiliary power unit designed to reduce fuel consumption and carbon emissions for tractor-trailer trucks. It consumes approximately 75% less fuel per hour than idling a tractor engine, equating to around 2,500 gallons of fuel saved per year or 10,000 gallons over the typical tractor ownership period. The TriPac APU's fuel efficiency ranges from 0.15 gallons per hour in mild conditions to 0.32 gallons per hour when the AC is in heavy use. This fuel efficiency can be further improved by adding ThermoLite solar panels, which can reduce TriPac engine runtime by up to 30%. With its ability to lower fuel consumption and maintenance costs, the TriPac APU is an attractive option for truckers looking to reduce their expenses and environmental impact.
| Characteristics | Values |
|---|---|
| Fuel consumption per hour | 0.15 gallons (without AC), 0.32 gallons (with AC), 0.6 gallons (average) |
| Fuel savings per year | 2,500 gallons |
| Fuel savings over the typical length of tractor ownership | 10,000 gallons |
| Fuel savings over the lifetime of the APU | 2,500-10,000 gallons |
| Fuel consumption reduction | 75% less than idling the tractor engine |
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What You'll Learn

Thermo King TriPac APU fuel consumption
The Thermo King TriPac APU is a diesel auxiliary power unit (APU) that consumes approximately 75% less fuel per hour than idling a tractor engine. This equates to a saving of about 2,500 gallons of fuel per year, or 10,000 gallons over the typical length of tractor ownership.
The TriPac APU achieves these fuel savings by eliminating unnecessary engine idling, which also reduces engine wear and maintenance frequency. In addition, ThermoLite solar panels can be added to the TriPac APU to further reduce fuel consumption. These solar panels can reduce TriPac engine runtime by up to 30% compared to the previous model.
The Thermo King TriPac APU is available in two different models: one designed for aftermarket setups that is 49-state EPA Tier 4 compliant, and another that features a new after-treatment device (ATD) that complies with California Air Resource Board (CARB) regulations and is approved for use in all 50 states. Both models are designed to reduce fuel consumption and emissions, with the ATD model also offering faster regeneration of just eight minutes.
The TriPac APU also features an industry-leading TracKing telematics system, which provides drivers with data on runtime, cabin temperatures, and fuel tax reporting. This system helps to further reduce fuel consumption by providing real-time maintenance reminders and software updates, ensuring the unit is running efficiently. Overall, the TriPac APU offers significant fuel savings and reduced emissions, making it a cost-effective and environmentally friendly choice for fleet operators.
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Fuel savings with TriPac APU
Fuel costs are one of the major expenses for truckers, and the TriPac APU is a great way to reduce these costs. The TriPac APU consumes approximately 75% less fuel per hour than idling a tractor engine. This works out at about 2,500 gallons per year in fuel savings, or 10,000 gallons over the typical length of tractor ownership.
The TriPac APU brings the comforts of home on the road, providing 13,000 BTUs and plenty of capacity to power appliances and charge devices. The APU also helps to retain the resale value of your fleet by offloading engine hours.
One driver, Curtis, a 12-year veteran, stated that he saw a "huge difference in fuel savings" when using his TriPac APU, with an average fuel consumption of 0.6 gallons per hour. This is a significant saving compared to letting his truck idle to maintain temperature control in the cab.
You can also add ThermoLite solar panels to your TriPac APU to reduce fossil fuel emissions even further. These panels can reduce TriPac engine runtime by up to 30% compared to the previous model, leading to even more fuel savings.
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TriPac APU and tractor engine idling comparison
The TriPac APU is a highly efficient alternative to idling tractor engines, offering significant fuel cost savings and reduced carbon emissions.
The TriPac APU consumes approximately 75% less fuel per hour than idling a tractor engine. This equates to an annual fuel saving of about 2,500 gallons, or 10,000 gallons over the typical tractor ownership period. This substantial reduction in fuel consumption not only lowers operating costs but also contributes to a more sustainable fleet operation.
The APU provides a comfortable climate-controlled environment for drivers during rest periods, ensuring a pleasant and well-deserved break. Its impressive cooling capabilities, delivering up to 13,000 BTUs, create a pleasant atmosphere even in hot weather.
In addition to fuel savings, the TriPac APU also helps retain the resale value of the tractor. By offloading engine hours to the APU, overall engine wear is reduced, resulting in lower maintenance costs and increased tractor longevity.
Furthermore, the TriPac APU is equipped with ThermoLite solar panels, which can reduce engine runtime by up to 30% compared to previous models. This feature further decreases fuel consumption and maintenance requirements, enhancing the cost-effectiveness and environmental friendliness of the system.
The TriPac APU's low fuel consumption, ranging from 0.15 gallons per hour under typical conditions to 0.32 gallons per hour with maximum AC usage, makes it a highly efficient choice for tractor operators. This efficiency translates to notable financial savings and a rapid return on investment.
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TriPac APU and fuel consumption during rest periods
The TriPac APU is a highly efficient auxiliary power unit (APU) that provides significant fuel savings for tractor-trailer owners. It consumes approximately 75% less fuel per hour than idling a tractor engine, resulting in substantial fuel savings over time. This equates to approximately 2,500 gallons of fuel saved per year or 10,000 gallons over the typical ownership period of a tractor.
During rest periods, the TriPac APU offers a cost-effective solution for maintaining a comfortable climate-controlled cab. Its fuel consumption ranges from 0.15 gallons to 1.1 gallons per hour, depending on factors such as outside temperature and the use of air conditioning. This low fuel consumption rate allows drivers to keep their fuel costs low, making it a popular choice for long-haul trips where rest periods are necessary.
One driver, Curtis, with 12 years of experience, reported a significant difference in fuel savings when using the TriPac APU. He noted that his Thermo King Tri-Pac burned an average of 0.6 gallons per hour, which was considerably less than letting his truck idle for temperature control. This aligns with the experiences of other drivers who have noticed reduced fuel consumption and cost savings when using the TriPac APU during rest periods.
The TriPac APU not only reduces fuel consumption but also helps preserve engine runtime, resulting in lower maintenance costs. By offloading engine hours to the APU, owners can retain more of their fleet's resale value. Additionally, the TriPac APU's compatibility with ThermoLite solar panels further reduces fuel consumption and emissions, making it an environmentally conscious choice.
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$113.86 $165

TriPac APU fuel consumption per hour
The TriPac APU consumes approximately 75% less fuel per hour than idling a tractor engine. This amounts to about 2,500 gallons per year in fuel savings, or 10,000 gallons over the typical length of tractor ownership. Individual results may vary, depending on driving habits, current fuel rates, and other factors.
According to a driver with 12 years of experience, the Tri-Pac APU burns an average of 0.6 gallons per hour, which is a significant saving compared to idling a truck engine to maintain temperature control in the cab. Another driver stated that their tripac averages around 0.15 gallons per hour, but this can increase to 0.32 gallons per hour when the AC is being used extensively in hot weather.
The manufacturer, Thermo King, estimates that their TriPac Evolutions APU can reduce fuel consumption by up to 2,500 gallons per year. They provide an APU Payback Calculator to help users understand their potential savings based on their specific circumstances.
In addition to fuel savings, the TriPac APU also offers other benefits such as reducing carbon emissions, providing power to appliances and devices, and increasing the fleet's resale value.
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Frequently asked questions
The TriPac APU consumes approximately 75% less fuel per hour than idling a tractor engine. This equates to around 2,500 gallons per year or 0.15 gallons per hour.
The TriPac APU helps to significantly reduce fuel consumption during rest periods. It is estimated that fuel consumption for an APU ranges from 0.6 gallons to 1.1 gallons per hour, which is much lower than allowing your truck to idle.
The TriPac APU can help reduce costs by lowering fuel consumption. It is estimated that the TriPac APU can save around 2,500 gallons of fuel per year, which can lead to significant cost savings for drivers.











































