New Air in Older Homes
With Easy-Vent for existing radiators, older homes can be upgraded with modern, efficient ventilation. The air chambers are easily installed without having to remove the radiator or window sill. This provides a cost-effective way to create a comfortable indoor environment with both filtered and preheated fresh air.
If new radiators are being installed, Easy-Vent is used for the new radiators.

Outdoor air is led into an air chamber through a duct in the façade wall. In the air chamber, the outdoor air is filtered and heated by the radiator. The clean, warmed fresh air then flows into the room over the top of the radiator—draft-free and silent.
The home’s “used” air is extracted via kitchen fans in the kitchen, vents in toilets/bathrooms, and sometimes from cupboards.

Fresh Air in Older Homes
Ventilation is about replacing old, used air with new, fresh air. This air exchange is essential for a healthy indoor climate. In many older homes, new windows have been installed with effective sealing against the wall structure. Apartment air vents are often closed to avoid cold drafts, dirt, and noise. The result is airtight homes with insufficient ventilation.

Poor ventilation increases humidity in the apartments, which promotes the growth of mould and dust mites, and contributes to the release of contaminants from building materials and décor. Condensation on windows and cold wall surfaces is another common problem. Homes built with blue concrete often have dangerously high radon levels in indoor air. Blue concrete was used between 1929 and 1975, meaning many homes are affected and need mitigation. Improving ventilation and increasing air turnover can significantly reduce radon levels.

Extraction and Central Extraction Systems
Used air in a home is extracted via kitchen fans in the kitchen and vents in the toilet or bathroom. Easy-Vent units are placed in other rooms such as living rooms and bedrooms, where new air is supplied and preheated. The fresh air flows through the home, capturing indoor pollutants on its way to kitchen fans and exhaust vents.

How Easy-Vent Works for Existing Radiators
Outdoor air is directed through the façade grille and duct into an air chamber mounted on the wall behind the radiator (Mini model shown below).

A filter at the entrance of the chamber prevents pollen and pollutants from entering with the fresh air. The filtered air flows into the chamber and is directed up the back of the radiator. In contact with the warm radiator surface, the air is effectively preheated before being discharged at the top of the radiator—draught-free and silent.

Easy-Vent also increases the radiator’s output. Forced convection combined with a large temperature difference between the radiator and outside air provides highly efficient heat transfer to the air.