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Formerly Kim Hotstart

HOTSTART, formerly KIM HOTSTART, offers a complete selection of easy-to-install engine pre-heating products for every application. If your unique requirements can’t be addressed with an off-the-shelf solution, our engineers and product developers can design or adapt an engine heating solution specifically for your needs.

HOTSTART products meet the engine heating needs for generators, locomotives, heavy equipment, land and marine shipping, oil and gas and machinery OEMs. Our products are manufactured in the U.S.A. which comply with the requirements of ISO 9001:2008. You can rely on the quality, expertise and service inherent in every HOTSTART product.

Tank Style Engine Preheaters

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.

For greater engine heating efficiency and reduced energy consumption, check out the HOTflow™ series.

Small Tank Style Heaters

large tps(TPS Models)

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, this model is available from 500 watt to 2000 watt for engines of 150 CID to 700 CID.

This simple to install and very lightweight, the HOTSTART TPS engine preheater features a built-in thermostat and heats engines up to 12L displacement. Thermosiphon circulation of the coolant delivers heat throughout the entire engine.

The TPS engine preheater is designed to preheat diesel and gas engines in genset, heavy duty mobile equipment, marine and industrial applications


Heating Fluid: Engine coolant (50% glycol/50% water)
Enclosure: IP41
Power: 0.5, 1, 1.5, 1.8 and 2 kW*
Fluid Capacity: 0.11gl (416 cm3)
Rated Voltage: 1 Phase 120 and 240 VAC
Max Pressure: 90PSI (6.2 bar)
Tank Material: Polyphenylensulfid PPS
Inlet /Outlet: 0.625” (15.9mm)
Heating Element: Incoloy 800

How to install a Hotstart engine heater

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