They are equipments without heat exchanger and they use cumbustion systems of high performance by air stream, providing comfort heating. They are fully automatic and they can be self-contained, as a non-compact ventilador or for insert in air ducts with a remote ventilator unit. 

These equipments are manufactured with capacities that goes from 30.000 to 6.500.000 Kcal/h and they can be provided with on-off or modulating control systems (P. ó P.I. ó P.I.D). They are also manufactured as standard (from 30.000 to 6.000.000 de Kcal/h).