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For marine, construction and industrial cabs
No other heater offers as many options as the R-2020. This heater can be used in vehicles with water or air cooled engines (where oil is the heat source). The compact design with round tube and fin core construction encourage unit mounting in any position while withstanding high operating pressures. The versatile mounting features and defrost attachments are perfect for multi-purpose applications in off-road and construction vehicles. The R-2020 can also be used as a heat exchanger or oil cooler with its "O" ring hose fittings and high-pressure core construction.

2-1/2'' Defrost Adapter RD-1-0422-0P
3'' Defrost Adapter RD-1-0423-0P
Swivel Fittings 70R7600 (Straight 5⁄8'' hose) & 70R7650 (90° 5⁄8'' hose)
Hoses 78R0100 (Heater, 5⁄8” 50ft), 78R0250 (Defrost, 2 1⁄2” 9ft), 78R0300 (Defrost, 3” 9ft) & RD-5-4593-0P (Insulation 5⁄8” 6ft)
Switches 71R0050 (Toggle, ON-OFF) & 71R1210 (Rotary, 3-speed)
Mounting Bracket RD-1-0419-0P

| BTUs |
Heating - 17,800 BTU/hr @ 100º F (4,486 kcal/h @ 37.8º C) with water for heat source (BTU's per hour with oil heat source lower)
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| Air Flow |
165 CFM (280 m3/h)
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| Weight |
10.7 lbs. (4.85 kg)
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| Motor |
One 12 VDC or one 24 VDC single speed
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| Current Draw |
6 amps @ 13.6 VDC;
3 amps @ 27.2 VDC
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| Models |
R-2020-0 (12 volt);
R-2020-0-24 (24 volt) |


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