Espar will soon be launching a heating system for trucks that run with compressed natural gas. The Airtronic CNG is fueled from the dedicated vehicle's CNG system.

The Airtronic CNG can be used on vehicles van-sized or larger, and according to Espar, has a thermostat-controlled shut down and re-ignition. Other benefits include low power consumption, various possible installation positions, electronic control unit and function monitoring system.

The Airtronic CNG features a quite integrated fan (option of 12-volt or 24-volt connection,  and weighs in at 10.4 pounds. The system measures in at 14.6 inches long, 9.8 inches wide and 4.9 high.