These Pro-Line Aqua heaters offer ultimate flexibility in that the element is submersed in the pond water (no added flow restriction) and thermostats can be used independently.

Should either unit fail, they can therefore be replaced individually and systems can be upgraded from 2kw to 3kw using the same thermostat.

Buy with?PRO-LINE DIGITAL THERMOSTAT?for complete heating system.

Depending on the minerals in the water, minerals may build up on the heating element. Remove these scale build up periodically to ensure optimum heat transfer.
Caution, before you remove the scale build-up be sure to disconnect the control box from the mains and wait at least 30 minutes to let the heating element cool down

Download manual HERE.