Coolant Heater

Webasto North America has introduced a new Thermo Top Evo coolant heater, the latest in a long line of engine-off heating technologies from that company that operate off diesel fuel drawn from the vehicle’s primary fuel tank.

“By using the Webasto Thermo Top Evo pre-heater, fleets can save fuel by reducing idling time, warming engines so they start easier and by avoiding extended engine warm-up times,” said Don Kanneth, aftermarket sales director, Webasto North America. “Most important, however, is that the Thermo Top Evo helps fleets reduce maintenance by reducing the strain on emission control devices, like DPFs.”

The system is more flexible to install, more intuitive to diagnose and features a quieter heater and fuel delivery system, said the company. With its 8600–17,200 BTU/h (2.5–5.0 kW) range and low power consumption, the system is more than capable of pre-heating a wide range of vehicle types, from light-duty commercial vehicles to heavy-duty trucks, it said.

The unit comes with a longer fuel line, universal controller harness and mounting bracket. Its coolant inlet and outlet ports at the top of the heater can rotate up to 180 degrees for greater flexibility when routing coolant lines. It also operates at a higher maximum combustion air temperature that allows it to be mounted in more locations within the engine compartment.

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