A diesel engine heater warms the coolant of a standby diesel fire pump engine so that the engine stays at a temperature ready to start at any moment. Engine compatibility, power supply, heater power and thermostat values are taken into account when selecting an engine block heater.
Kirloskar offers an engine coolant heater as standard equipment on KFP series fire pump engines. In the spare parts catalogue of the KFP6R-UF25 engine, the heater is listed as Kim Hotstart TPS202GT12-006 (2.0 kW, 240 V). The heater is connected to the engine together with a mounting bracket, water inlet pipe, hose and terminal box.
The Hotstart TPS is a preheater operating on the thermosiphon principle. Heated coolant rises naturally and circulates through the engine block. With no moving parts, maintenance requirements are low. On the TPS202GT12 model the thermostat switches on at 49 °C and off at 60 °C.
According to Kirloskar's operating instructions, the heater must only be energised after the coolant has been filled. The heater should be kept on continuously at temperatures below 0 °C and switched off while the engine is running. Diesel engine heaters can also be supplied under the Clarke brand.
| Specification | Value |
|---|---|
| KFP6R-UF25 Heater | TPS202GT12-006, 2.0 kW, 240 V |
| Supply | 230/240 V AC, single phase; from the junction box on the engine |
| Operating Principle | Thermosiphon circulation, no moving parts |
| Thermostat | On 49 °C (120 °F) / off 60 °C (140 °F) |
| Medium | Water or 50% water / 50% glycol |
| Max. Pressure | 90 psi (620 kPa) |
| Connection | 0.625″ (15.9 mm) hose fitting |
| Tank / Element | Polyphenylene sulphide (PPS) / Incoloy 800 |
Technical values are based on manufacturer documents; confirm against the current data sheet before ordering.
Standby diesel fire pump engines
Cold climates and unheated pump rooms
Container-type fire pump roomsOther equipment considered together with the Diesel Engine Heater in the fire pump room:
