Heating & Ventilation Units : DF REC

- Nordair Niche variable air recirculation models are completely CE approved and patented. They supply a constant air volume with up to 80% recirculation air. - The variable air recirculation option mixes a constant supply of 20% fresh air which passes over the burner with the remaining air volume being either fresh air, recirculation air or a mixture of fresh and recirculated air.