Heat from your engine
Heaters for Hydronic (boiler) Systems (low amperage)


Boats		 Heater Craft Boating Heater Craft Boating
Our entire line operates in a manner very similar to your car's heating system. Each series is compatible with an I/O or inboard engine with either a freshwater-closed or raw-water open cooled system. All heaters come equipped with a 12V DC fan motor, 24V is optional and every unit's exterior is powder coated. Venting is shown in the PARTS section.

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1H - Heater
1H - Heater


Unit height - 6.2"
Unit width - 7.6"
Unit depth - 10"
Amp - 4.4
Airflow - 230 cfm
Max. Est. BTU/h - 22520
Weight - 8.5 lbs.
Hose Barb - 5/8"

 

  • 12V DC single speed fan
     
  • 24V DC fan optional
     
  • Ignition protected
     
  • Double 3" outlets
     
  • Universal mounting brackets
     
  • 2 year warranty


     
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    2H - Heater
    2H - Heater


    Unit height - 6.4"
    Unit width - 9.4"
    Unit depth - 9.35"
    Amp low - 4.4
    Amp med - 5.8
    Amp high - 8.5
    Airflow low - 172 cfm
    Airflow med - 228 cfm
    Airflow high - 263 cfm
    Max. Est. BTU/h - 28000
    Weight - 7.02 lbs.
    Hose Barb - 5/8" or 3/4"

     

  • 12V DC 3 speed fan
     
  • 24V DC fan optional
     
  • Single or Double 3" outlets
     
  • Universal mounting brackets
     
  • 2 year warranty

     
    		•

    3H - Heater
    3H - Heater


    Unit height - 6.55"
    Unit width - 15.95"
    Unit depth - 9.4"
    Amp low - 4.7
    Amp med - 6.3
    Amp high - 9.2
    Airflow low - 188 cfm
    Airflow med - 250 cfm
    Airflow high - 366 cfm
    Max. Est. BTU/h - 40000
    Weight - 10.72 lbs.
    Hose Barb - 5/8"

     

  • 12V DC 3 speed fan
     
  • 24V DC fan optional
     
  • Triple or Quad 3" outlets
     
  • Universal mounting brackets
     
  • 2 year warranty

     
    		•



     

    4H - Heater
    4H - Heater


    Unit height - 6.55"
    Unit width - 15.9"
    Unit depth - 8.66"
    Grill height - 8.5"
    Grill width - 17.5"
    Amp low - 5.3
    Amp med - 6.7
    Amp high - 11.4
    Airflow low - 188 cfm
    Airflow med - 250 cfm
    Airflow high - 366 cfm
    Max. Est. BTU/h - 40000
    Weight - 10.72 lbs.
    Hose Barb - 5/8"

     

  • 12V DC 3 speed fan
     
  • 24V DC fan optional
     
  • Black or White grill
     
  • Flush mount
     
  • 2 year warranty

     
    		•

    5H - Heater
    5H - Heater


    Unit height - 6.4"
    Unit width - 9.4"
    Unit depth - 8.66"
    Grill height - 7.45"
    Grill width - 11.3"
    Amp low - 4.9
    Amp med - 6.6
    Amp high - 9.6
    Airflow low - 172 cfm
    Airflow med - 228 cfm
    Airflow high - 263 cfm
    Max. Est. BTU/h - 28000
    Weight - 7.02 lbs.
    Hose Barb - 5/8" or 3/4"

     

  • 12V DC 3 speed fan
     
  • Optional low amp fan
     
  • 24V DC fan optional
     
  • Black or White grill
     
  • Flush mount
     
  • 2 year warranty

    • Optional Low Amp Fan
    5H Optional
    Low Amp Fan


    Unit height - 6.4"
    Unit width - 9.4"
    Unit depth - 5.5"
    Grill height - 7.45"
    Grill width - 11.3"
    Amp - 0.95
    Airflow - 140 cfm
    Max. Est. BTU/h - 14000
    Weight - 4.7 lbs.
    Hose Barb - 5/8" or 3/4"

     

  • 12V DC single speed fan
     
  • 24V DC fan optional
     
  • Black or White grill
     
  • Flush mount
     
  • 2 year warranty



     
    		•



     

    1101H - Heater
    1101H - Heater


    Unit height - 4.95"
    Unit width - 10.12"
    Unit depth - 9"
    Amp low - 1.9
    Amp med - 2.8
    Amp high - 5.6
    Airflow low - 60 cfm
    Airflow med - 82 cfm
    Airflow high - 138 cfm
    Max. Est. BTU/h - 12000
    Weight - 5 lbs.
    Hose Barb - 5/8"

     

  • 12V DC 3 speed fan
     
  • 24V DC fan optional
     
  • ABS plastic housing
     
  • Ducted plenum available
     
  • Patent pending
     
  • 1 year warranty

    • 1110H - Heater
    1110H - Heater


    Unit height - 6.5"
    Unit width - 8.5"
    Unit depth - 9.5"
    Amp low - 1.8
    Amp med - 2.8
    Amp high - 4.5
    Airflow low - 150 cfm
    Airflow med - 173 cfm
    Airflow high - 200 cfm
    Max. Est. BTU/h - 9515
    Weight - 5.6 lbs.
    Hose Barb - 5/8"
     

  • 12V DC 3 speed fan
     
  • 24V DC fan optional
     
  • Single or Double 2.5" or 3" outlets
     
  • Universal mounting brackets
     
  • Optional fresh air intake
     
  • 1 year warranty
    •  

    BTU/h estimates are based on 50% glycol solution, 3 gpm at 170°, and 60° ambient air.
    Amps based on 12V DC.
     

    Heaters for Hydronic (boiler) Systems (low amperage)

     

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