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Hydronic
16/24/30/35 Coolant heaters

(Espar)

Click here to view Hydronic 16
schematic diagram

For the largest coaches, boats and olf-road engines. These heaters provide engine, fue and hydraulic preheat and can be incorporated into a coach’s heating system to provide supplemental heat. The first choice for those who require rapid heating when operating in “Arctic-like” climates. 24v version only.

Features & Benefits include:
  • No electrical plug-ins.
  • Easy start up of equipment.
  • Self-Diagnostics.
  • Supplemental rnhin heat.
Technical Data Espar coolant heaters
  Hydronic 16 Hydronic 24 Hydronic 30 Hydronic 35
Nominal heat (watts)
                  (BTU/hr)
16,000
55,000
24,000
82,000
30,000
102,000
35,000
120,000
Fuel dielsel / heating oil.
Fuel consumption
(USgal/hr)
2,01 l/hr(0.53) 2,901 l/hr(0.77) 3,651 l/hr(0.96) 4.21 l/hr(1.10)
Electric Consumption
24 volts only
60 watts
2.5 amps
80 watts
3.3 amps
105 watts
4.4 amps
120 watts
5 amps
Nominal voltage 24 volts 24 volts 24 volts 24 volts
Water throughtput 1,320 U.S. gal/hr against 0.2 bar (5000 l/hr against 0.2 bar)
Weight 40 lbs. (18 kg)
Developed by BF Enterprises