Features to know about

Give Working Equipment a Warmer Start

Equipment parked outside or in an unheated building can be harder to start after a freezing night. This 1,500-watt tank heater warms engine coolant before startup, helping reduce the difficulty of getting light duty industrial, agricultural, and off-road equipment running in cold weather. Allow approximately 2 to 3 hours for preheating in typical conditions, although the time needed will depend on the engine and weather.

Move Warm Coolant Through the Engine Naturally

This heater uses thermosiphon circulation, so there's no mechanical pump to move the coolant. Cold coolant enters the lower connection, warms inside the tank, and rises toward the engine through the upper connection. As that warmed coolant moves upward, cooler coolant takes its place. The heater must be mounted vertically, low in the cooling system, with the outlet hose rising toward the engine. Proper positioning and hose routing are essential for this natural circulation to work.

Regulated Heat With a Built-In Thermostat

The thermostat switches the heater off at 190°F (88°C) and back on when the sensed temperature drops to 151°F (66°C). This automatic cycling provides temperature control and overheat protection. These settings describe the thermostat's operation, not an exact temperature maintained throughout the engine. The copper heating element transfers heat to the coolant, while the cast aluminum housing resists corrosion and impact.

Connect the Heater With the Included Installation Parts

The tank has 5/8" inlet and outlet connections and includes a mounting strap, Y-fitting, drain plug adapter, and 6 hose clamps. The mounting strap can be bent to accommodate different installation locations, such as a frame rail, firewall, or fender. You'll still need suitable coolant hose and may need additional fittings, depending on your engine's cooling-system layout. Before installation, verify that the tank can sit vertically below the coolant connection points and that the outlet hose can rise at least 12" toward the engine.

Replace Heating Components Instead of the Entire Unit

If the heating element or thermostat eventually needs service, you don't necessarily have to replace the whole tank heater. Both components are replaceable, with manufacturer replacement parts available separately. The heater uses a heavy-duty, grounded 5' power cord and a cylindrical housing measuring 8-1/2" tall x 2-3/4" wide.

Cold-Weather Experience Behind the Zerostart Name

Zerostart is a Phillips & Temro brand, from a manufacturer that develops engine, battery, and equipment heaters. That experience is relevant when you're preparing working equipment to start in cold weather, from industrial job sites to agricultural operations.