Espar’s HYDRONIC L-II series are for the largest coaches, boats and off-road engines. These heaters provide engine, fuel and hydraulic preheat and can be incorporated into a coaches heating system to provide supplemental heat.

The pump is a wet rotor circulator, built according to the spherical motor principle. It is <br>powered by an electronically commutated permanent magnet drive (EC-motor), operated by 12VDC.

The D2 Heater is designed for many types of applications. It is suitable for cab and sleeper heat in trucks and recreational vehicles. The D2 Heaters cycles quietly through four heat levels to maintain a desired comfort setting, without idling your engine.