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Engine Block Heaters - Immersion Heaters 

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Hotstart Kim Engine Block Heater Type 500watt TPS051GT8-000

Denro Part No: 590-890

HOTSTART tank style engine heaters maintain an engine’s operating temperature during downtime and serve as an excellent cold weather or emergency starting aid while eliminating needless idling.

Hotstart heaters meet heating requirements for a wide range of engine sizes and applications.

Designed to circulate heated coolant through the entire engine block, HOTSTART engine heaters provide even heat distribution resulting in reduced engine wear, quick start-ups and reduced emissions.

This high-impact plastic tank heater offers exceptional tensile strength and resists corrosion.

The compact design is ideal for locations that require minimal mounting space. Thermostatically controlled and designed for efficient heating.

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Hotstart Kim Engine Block Heater Type 1000watt TPS101GT10

Denro Part No: 590-600

1000 Watts - 120 Volts with Plug (4FT Cord)

Fixed Setting Thermostat - ON: 100F (38C) OFF: 120F (49C)

Engine Displacement 350 CID 5.7 L

5/8" Hose Nipples molded onto the heater for easy hose connection

Includes universal mounting and screws

Outlets and voltage differ internationally and this product may require an adapter or converter for use in your destination.

Please check compatibility before purchasing.

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Hotstart Kim Engine Block Heater Type 1500watt TPS181GT10-000

Denro Part No: 590-830

Pre-Heat: Diesel and Gas engines, construction equipment, trucks, marine and industrial applications

Heating Fluid:

Engine Coolant, Water, other No pump needed (thermosiphon principle)

Engine Displacement: 500 – 700 CID (8.2 – 11.5L)

Volts: 120v - kW: 1.8 - AMPS: 15 - 60Hz, Comes with Nema 5-20 rated plug ( 20A receptacle or adaptor required )

Temperature Range: ON: 100°F (38°C) – OFF 120°F (49°C)

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Hotstart Kim Engine Block Heater Type 2000watt TPS202GT10-000

Denro Part No: 590-831

Pre-Heat: Diesel and Gas engines, construction equipment, trucks, marine and industrial applications

Heating Fluid: Engine Coolant, Water, other No pump needed (thermosiphon principle)

Engine Displacement: 500 – 700 CID (8.2 – 11.5L)

Volts: 120v - kW: 1.8 - AMPS: 15 - 60Hz, Comes with Nema 5-20 rated plug ( 20A receptacle or adaptor required )

Temperature Range: ON: 100°F (38°C) – OFF 120°F (49°C)

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TPS Engine Heater

Thermosiphon Heating System

HOTSTART’s TPS thermosiphon heating system is a coolant preheater, developed to maintain optimal temperatures for diesel and gas engines in stationary land power, marine, construction equipment, and truck applications.

Depend on consistent, reliable heating with the proven design of the TPS Thermosiphon heater.

Heated coolant rises through the engine block, maintaining critical fluid temperatures for easy engine starts when needed.

  • Heating Information | Primary Heating: Water / Coolant Mix

  • Primary Heat Power: 500 W / 1 kW / 1.5 kW / 1.8 kW / 2 kW

  • Power Specifications | Power Sources: AC, Single-Phase, 50/60 Hz

  • Voltages: 120 / 240 / 277

  • Power Connectors: NEMA Plug / Euro Plug (Schuko)

  • Temperature Control | Primary Temperature Control: Set Points 100–120 °F (38–49 °C)

  • Mounted: Bracket. | Ingress Options: System Ingress IP41

  • Inlets | Outlets: Inlets 0.625” hose barb (15.9 mm) | Outlets 0.625” hose barb (15.9 mm)

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Improved Performance Starts Here

Since 1942, Hotstart has been the world leader in the design and manufacture of thermal management systems.

The initial need of keeping school buses warm in winter resulted in engine heating products that continue to be used by major OEMs globally.

With over 75 years of experience, the company continues to provide high quality, reliable preheating systems to customers needing easy engine starts, immediate full power and reductions in maintenance, fuel consumption and harmful emissions. 

As the energy landscape evolves, they are drawing on their expertise to develop innovative heating and cooling solutions. Power generation, storage and delivery methods are changing quickly and require new approaches to achieve sustainability and energy-efficiency goals.

Targeted, liquid-based thermal management in place of traditional air conditioning is ideal for battery energy storage, fuel cells and electrified industrial vehicles.  

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