The Red Dot R-290-0-24P Auxiliary Heater is engineered for demanding heavy-duty vehicle applications where reliable, high-output heat is essential. This model features a single blower with rear exit configuration, making it ideal for flexible wall or floor mounting in tight cab environments.
Designed with high-velocity, three-speed motors and scroll blower housings, the R-290 delivers maximum BTU output with exceptional airflow, ensuring fast warm-up and consistent heat distribution. With an output rating of 20,000 BTU/hr and airflow up to 220 CFM, this heater provides dependable performance in cold-weather operating conditions.
The heater uses 5/8 in. push-on heater pipe fittings for straightforward coolant connections and operates on 24V DC electrical systems, making it suitable for a wide range of heavy-duty trucks and vocational vehicles. An optional defrost hose adapter is available to allow ducted airflow for windshield defrosting (sold separately).
Product Specifications
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Manufacturer: Red Dot
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Model Number: R-290-0-24P
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MEI Part Number: 10-9831
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Voltage: 24V DC
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Air Flow: 220 CFM (373 m³/h)
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Heating Capacity:
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20,000 BTU/hr @ 150°F
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5,040 kcal/h @ 65.6°C
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Current Draw: 2.7 amps @ 27.2 VDC (high speed)
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Overall Height: 7.34 in.
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Overall Length: 11.52 in.
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Overall Width: 9.52 in.
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Coolant Inlet: 5/8 in.
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Coolant Outlet: 5/8 in.
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Fitting Style: Push-on heater pipe
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Mount Type: Wall / Floor – Universal
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Mounting Configuration: Rear exit
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Blower Configuration: Single blower
Cross Reference Numbers
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Texas Truck A/C: 950-3540-24
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AirSource – MEI: 44865
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CoolStar – MEI: 997-9831
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Primatech: PTAC10-9831
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Red Dot Aftermarket: R-290-0-24
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Truck Air – MEI: 50-9831
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TruckAC+: T4005
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TTA/C: 90-290-0-24
Interchange Numbers
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10-9831
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292-1280
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4379-R290024
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R-290-0-24P
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RDH R290 0 24
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