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Espar
Hydronic 5 Coolant heater

The HYDRONIC 5 water heater preheats trucks, buses and off-road equipment engines quickly, ensuring an easy start on cold winter morning. This asset eliminates the high cost of idling or maintaining electrical plug-ins. Its compact size makes for an easy and simple installation.

Type Coolant heater
Heat Output
BTU/hr (kW)
High 17,000 (5.0), Low 8,200(2.4)
Fuel Consumption
US.gal/hr (l/hr)
Diesel 1.2 or kerosene
High 0.16 (0.62),
Low 0.08 (0.30)
Electrical (12 V)
Consumption
Starting 10 amps, High 4.2 amps,
Low 1.9 amps, Standby 0.8 amps
Water throughtput 238 US gal/hr against 0.1 bar
(900 l/hr against 0.1 bar)
Weight 6.4 lbs. (2.9 kg)
Developed by BF Enterprises