Learn everything about heat recovery units

Ventilation exists where there is human activity, whether it is homes, schools, courtrooms, restaurants, hotels, workplaces, all kinds of commercial spaces, etc., creating a pleasant atmosphere that helps the proper functioning of the human body.

Therefore the exchange of air in places where there is overcrowding is particularly important, both for the hygiene of these areas e.g. public spaces, business spaces, catering, etc. as for the smooth functioning of any human activity occurring within them.

How does a heat recovery unit work?

A heat recovery unit is a device that refreshes the air of a room before conditioning it, utilizing the energy (heat) of the discharged air. The recovery of the wasted energy is achieved by the use of an element made of aluminum or other material with high thermal conductivity. The result is a heat recovery percentage of more than 70%.

The way the heat recovery units are constructed does not allow the fresh intake air to be mixed with the dirty air, full of exhaust air odors.

Ideal for use

Sivent’s heat recovery units are used in air conditioning-ventilation systems to recover some of the wasted energy, such as commercial spaces, constructions, domestic spaces, professional kitchens, bathrooms – toilets, thus achieving great energy savings that can reach up to 75 %.

Let’s take a look at some heat recovery units that will help refresh the air in your space:

Vent Axia HR30W

The Vent Axia HR30W heat recovery unit is ideal for installation in bedrooms with almost silent night operation and the possibility of increasing its efficiency during the day.

Vent Axia HR100W

The Vent Axia HR100W heat recovery unit is ideal for installation in bathrooms and toilets, with air heat recovery of up to 70%.

Vent Axia HR200WK

The Vent Axia HR200WK heat recovery unit is ideal for installation in home kitchens, utility rooms, and bedrooms, with air heat recovery of up to 75%.

Vent Axia HR300

The Vent Axia HR300 heat recovery unit is ideal for light commercial applications such as event halls, offices, classrooms, etc.

Vent Axia HR500DP

The heat recovery unit HR500DP by Vent Axia with heat recovery up to 70%.

Vent Axia HR500 & HR500X

The heat recovery units HR500 & HR500X by Vent Axia, for commercial spaces, for swimming pools, computer rooms, classrooms, offices, and health, and leisure industries, with air heat recovery up to 70%.

Vent Axia Integra Plus EC

The Vent Axia Integra Plus EC heat recovery unit, ideal for installation in roof gaps, lofts, and above suspended ceilings, with air heat recovery of up to 70%.

Sentinel Kinetic Cooker Hood

The Vent Axia Sentinel Kinetic Cooker Hood heat recovery unit is ideal for installation in professional kitchens.

Vent Axia Tempra

The Vent Axia Tempra air heat exchanger is ideal for kitchens, bathrooms, toilets, or utility rooms. Featuring a built-in cord, timer, and humidity sensor.


Sivent’s team are experts in the ventilation industry. Offering complete solutions to ventilation problems for both businesses and individuals.

Sivent is the exclusive representative of Vent Axia & Plastifer companies in Greece.

Contact us

#main-content .dfd-content-wrap {margin: 0px;} #main-content .dfd-content-wrap > article {padding: 0px;}@media only screen and (min-width: 1101px) {#layout.dfd-portfolio-loop > .row.full-width > .blog-section.no-sidebars,#layout.dfd-gallery-loop > .row.full-width > .blog-section.no-sidebars {padding: 0 0px;}#layout.dfd-portfolio-loop > .row.full-width > .blog-section.no-sidebars > #main-content > .dfd-content-wrap:first-child,#layout.dfd-gallery-loop > .row.full-width > .blog-section.no-sidebars > #main-content > .dfd-content-wrap:first-child {border-top: 0px solid transparent; border-bottom: 0px solid transparent;}#layout.dfd-portfolio-loop > .row.full-width #right-sidebar,#layout.dfd-gallery-loop > .row.full-width #right-sidebar {padding-top: 0px;padding-bottom: 0px;}#layout.dfd-portfolio-loop > .row.full-width > .blog-section.no-sidebars .sort-panel,#layout.dfd-gallery-loop > .row.full-width > .blog-section.no-sidebars .sort-panel {margin-left: -0px;margin-right: -0px;}}#layout .dfd-content-wrap.layout-side-image,#layout > .row.full-width .dfd-content-wrap.layout-side-image {margin-left: 0;margin-right: 0;}