Fast Warm-Ups, Clear Windows, and Reliable Engine Pre-Heat

The Espar Hydronic S3 B5E CS is a compact 5 kW (17,000 BTU) gasoline water heater that delivers rapid cabin comfort and efficient engine pre-heating. Paired with the EasyStart Pro controller, it allows precise scheduling and effortless control for daily use.

Key Benefits & Applications

• Engine & Cabin Pre-Heat: Circulates heated coolant to warm your engine and HVAC core, reducing cold starts, engine wear, and improving comfort.
• Rapid Defrost & De-Ice: Quickly clears windshields and windows for safer driving in cold conditions.
• Programmable Comfort: Set schedules easily using the EasyStart Pro timer controller.
• Versatile Use Cases: Ideal for daily drivers, emergency fleets, vans, motorhomes, and boats (supports domestic hot water loops).
• Compact & Flexible: Fits tight engine bays, with separate fuel metering and coolant pumps for easier installation.

Technical Specifications

• Fuel: Gasoline (petrol)
• Voltage: 12 V
• Heat Output: 17,000 BTU (≈ 5 kW)
• Fuel Consumption: 0.06–0.17 gal/h (0.23–0.67 L/h)
• Power Draw: 7–32 W
• Max Operating Altitude: 10,000 ft (3,048 m)
• Warranty: 2 years
• Dimensions (Heater Body): 8.4 × 3.5 × 5.6 in (215 × 91 × 144 mm)
• Weight: 4.4 lb (2 kg)
• Part Numbers: 202008050000 / 202051050000 / 20.2008.05.0000 / 20.2051.05.0000

Vehicle Compatibility

• Passenger cars (from 2.0 L displacement)
• Emergency vehicles and fleets
• Vans, taxis, minivans, and commercial vehicles (incl. tandem setups with air heaters)
• Construction and agricultural machinery
• Motorhomes and boats

Install Kit Includes: 

• Easyfix tank connection (Plastic Tank)

• 1 x exhaust muffler 24mm

• 2 x 26-28mm muffler clamp

• 1x Easy Start Pro Dual Timer
  

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