Air heating device

In the 1970s, air heating was a relatively common heating system in detached houses. Air heating systems only have one liquid circulation heater. The circulating air fan sucks indoor air from the vicinity of the unit and blows the circulated air, which has been warmed up by the radiator, into the rooms through grilles below the windows. The Valmet Kotilämpö system included a ventilation part for heat recovery that was relatively advanced at the time.

No need to re-build your whole system – the old Valmet Kotilämpö is easy to replace with a new, energy-efficient Vallox Aito Kotilämpö unit which boasts significantly more efficient heat recovery than the old unit.