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..: Welcome to ROTOVENT SYSTEMS :..
worth knowing ...

The situation

Heating is of great importance especially in central and northern Europe.

The main forms of fuel in use are oil, gas and solid fuels, although the majority is made up of oil heating.

No matter the size or form of the heating system, they all need a chimney. Old chimneys tend to contain twists and turns on their way outside and hinder the build-up of a proper draft. But it makes no difference whether old or new, problems can arise everywhere.

A weak draft can cause faulty burning and lead to smoke and fumes entering the rooms.

The cold exterior air enters the chimney and creates a counter pressure to the warm rising fumes. These fumes are then cooled quicker than normal, preventing a complete exit from the chimney. Furthermore there is also the problem of flying sparks, especially in regions with weather inversion or strong winds. Flying sparks are the number one cause of the dreaded chimney fires. In the case of wood fuel, the risk of a chimney fire is increased due to an incomplete exit of the fumes causing a build-up of pitch. The pitch is then ignited by flying burning sparks. Chimney fires have often been the cause for entire buildings going up in flames.

The inefficient burning prevents the build up of the necessary heating temperature and can result in a definitive decrease of air quality within the house. If the smoke temperature is not hot enough the fumes cannot exit the chimney properly and start to condense. This condensation results in creosote build-up in chimney and flue. Creosote destroys the chimney and narrows the flue, decreasing draft efficiency.

The consequences are extensive and expensive reparations since the damages are discovered much too late.

Did you know that 1 mm of soot results in a 5 percent loss of energy?

A thorough cleaning of the heating system and the guarantee of a good-working flue in the chimney is a worthwhile economical consideration

These pictures show typical chimney-damages caused by inefficient burning and draft conditions or improper barriers

!! Attention !!

If your chimney looks similar to these pictures you should take appropriate action immediately!!!

The Solution


The ROTOVENT® Systems concept is efficient, simple and above all economical in improving the chimney and preventing any appearance of the above mentioned problems.

The ROTOVENT® is mounted onto the chimney without the requirement of further additions onto the chimney itself (crowns or plates).

The ROTOVENT® is made out of a stainless steel fin system which begins to rotate with minimum air movement. The niro spindle in the centre contains double ball bearings in an oil bath, providing a smooth and non-deteriorating rotation.

This system is completely independent and does not require any additional power source. For individual needs or special requests, we also offer the electrically powered ROTOVENT® RSE turbo system which includes a ventilating vacuum.

The ROTOVENT® can be easily removed. It does not create an obstacle for the chimney sweep.

Experience has shown that although the widely used chimney roofs fulfil their purpose in preventing the entrance of rain and moisture, they also create a barrier for the exiting fumes and a build-up of heat. If you dispose of such an improper barrier you can replace it with a ROTOVENT® any time.


Further risks ...


Chimneys without a ROTOVENT® are susceptible to strong drafts during heavy winds (due to the wind blowing as the chimney is opening and pulling out more air than necessary).

This effect can result in sparks also being pulled out of the burning space and up into the chimney, not only increasing the risk of chimney fires but also creating a loss of energy in the burning.

The ROTOVENT® regulative influence prevents the dangerous side-effects of back-drafts and flying sparks. It also effectively economizes up to 40 percent of fuel.

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The ROTOVENT® Technique

With the surge of air movement, the air is pressed into the chimney and prevents the exit of the fumes in the normal chimney draft. Depending on the combining factors of wind intensity and chimney height, smoke and sparks can be pressed down the chimney and enter the living quarters.

To prevent this, the ROTOVENT® begins to rotate with minimum air movement, not allowing a back-draft entry into the chimney. In contrast, the ROTOVENT® increases the natural draft and pulls the smoke out of the chimney. The rotation speed of the fins automatically adjusts itself to the wind strength and significantly improves the heating conditions and burning rate.

Through the fast rotation (when the weather is windy or even stormy) the ROTOVENT® closes the outlet of the chimney in such a way that a rugged and well-working flue is guaranteed but no exhaust is effected.

Therefore the ROTOVENT® Technology guarantees simple and safe heating-up, a rugged and energetic fire and an optimal burning.

The protection against rain and snow as well as the permanent ventilation during the break of heating secure your chimney confidently from damages and ensure a long life time.

(c) Rotovent Systems ™ (you are not allowed to copy any content without our permission)