Engine block heater

Hose mounted heater

The Calix hose mounted heater heats the cooling fluid in one of the hoses from the engine block through the heater and back into the engine block.

Normally quick and easy to install and gives high heating efficiency.

The Calix contact heater transfers the heat to the contacting surface in the engine block.

Normally very quick and easy to install but gives quite low heating efficiency.

An insertion heater is inserted into the engine block and heats the cooling fluid inside the engine block.

Requires an available threaded hole or core plug for assembly but gives very high heating efficiency.