Espar diesel heaters are heaters that preheat various cabin spaces and engines, such as 18-wheel rigs, buses and boats. Diesel heaters run off of diesel fuel or gasoline instead of electricity.
These heaters eliminate the need to idle the engine for heat. Because they do not require electrical outlets, they enable reliable starting in cold weather and pre-heating cabins. Espar makes these heaters for many mobile units, including RVs, school buses and off-highway machines such as dump trucks and cranes. Espar also makes supplementary heat and air conditioning units for standard passenger vehicles. These units are lightweight and have a compact design.