Hotstart Inc products

The HOTSTART Auxiliary Power Unit (APU) heating system is a self-contained water/coolant and oil preheater for locomotive prime movers. Utilizing an efficient Tier 4 Final engine, the APU consumes only a fraction of the fuel an idling locomotive uses while providing heat via four heat exchange points and a built-in tank heater – a total of 19 kW of total heating power supplied to the locomotive, lube oil and optional operator cab heater. The APU also supplies 80 amps of battery charging via a heavy-duty alternator. Designed from the ground up to work seamlessly with a locomotive’s day-to-day operations, the APU includes an easy-to-use operator interface, automatic operation, and integration capability with AESS systems.