The EcoStream is Ontop’s most recent innovation. This ingenious development combines a chimney fan with a soot separator and offers numerous advantages to both the users of wood stoves and their environment.
- Cleaner flue gases.
- Less smell: thanks to the mixing with fresh air and higher speed of the flue gases.
- Improved draft: creates an immediate negative
pressure in the chimney thus the stove reaches its
optimum operating temperature very quickly. Moreover it allows more complex flue gas routes

Working principle
The stream of air inside of the EcoStream is being transformed into a cyclone. By the resulting centrifugal force solid soot particles are being pressed against the wall and then into a buffer. In this buffer, the solid soot particles are collected, together with the rain water that the EcoStream collects by means of an internal collection system. As soon as there is sufficient water in the buffer, the buffer clean itself by means of a drain.

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Technical specifications

The Ecostream comes standard with four adjustable legs which have a range from ø 130 to 200 mm, an electrical kit including wiring diagrams and textile tape that silences the sound of possible vibrations. The Ecostream weighs only 10 kg and can therefore easily be placed on top of a chimney. Moreover, the Ecostream is easy to inspect and clean due to the hinged fixation.

Application: Flue gas fan with soot separator for wood burning stoves and inserts (max 15 kW)
Material: Both the housing and the rotor blade
are made of stainless steel
Electric drive: 37 W, 1300 RPM, 230 V
Weight: 10 kg
Max. op. temp.: 250 °C
Dimensions:  For chimneys from Ø 130 to 200mm






The EcoStream must electrically be installed by a local
certified electrician according to local obligations (local
rules). Ideally one uses a plug and a switch (it can be
obligatory to install a certified maintenance switch).



Installation Manual

Commercial drawing