Enthalpy exchanger

In winter, many people experience health issues due to dry air in the home. For example, a dry throat and neck, dry eyes, a dry, non-productive cough and chapped lips. But the home can also feel damp and uncomfortable during wet summers. To feel as comfortable as possible at home in any season, it is very important that your dwelling has the right balance of humidity. A ventilation system with enthalpy exchanger is the right solution to achieve this. A complete ventilation device with integrated enthalpy exchanger is now available (ex works) for the entire Flair range and the Renovent Sky 300. The enthalpy exchanger is also available as an accessory to replace the standard heat exchanger in your current ventilation device.

A standard heat exchanger in the unit absorbs the heat from the stale extracted air and uses it to heat the filtered intake air without the air flows being mixed. A specially-developed membrane in the enthalpy exchanger means that the flows of both intake and extracted air are segregated, but it can also transfer moisture between the air streams.

The quantity of moisture that is automatically transferred depends on the relative humidity in the indoor and outdoor air, and can rise to around 60%. With the enthalpy exchanger, the relative humidity averages between 3 and 5% higher than with a standard heat exchanger when outdoor conditions are cold and dry.

The ventilation units with enthalpy exchanger are suitable for both new-build properties and existing properties.A great advantage of using a ventilation unit with enthalpy exchanger is that no condensation is created. This means that there is no need for a condensation drain. Perfect for renovation of existing properties, in which the Renovent Sky is often used above a false ceiling due to its compact dimensions. But it is particularly suitable to be used with a Flair unit in existing dwellings, where the use of a pipe network for a condensation drain would otherwise be complex and costly.

In addition to the standard models, all units in the Flair range and the Renovent Sky 300 are available complete with integrated enthalpy exchanger. The enthalpy exchanger is also available as an extra. The standard heat exchanger can easily be replaced and swapped for the enthalpy exchanger without making any changes to the unit’s settings.

For the Renovent Sky 150/200, the model with an integrated enthalpy exchanger is available from mid-2025.