Common heating problems in large buildings

Thermal stratification is the layering of air by temperature over the height of a building. In tall spaces it is the single biggest reason why “the heating is running and the hall is still cold”.

Radiators: warmth only along the walls

Conventional radiators can only heat the perimeter. Their effective range stops at about 5 metres from the wall, which leaves the centre of the building and the working areas cold — and makes the approach unworkable over large floor plates.

Local unit heaters: hot spots and draughts

Wall-mounted unit heaters push warm air deep into the space, but they cannot distribute it evenly. You end up with pockets of serious overheating right in front of each appliance and cold areas everywhere outside their direct throw. Comfortable conditions across the whole building volume never materialise.

Central systems with ductwork: heating the roof, not the workers

Large volumes of expensive heat collect under the ceiling and disperse through the roof. Down in the occupied zone, where the people and the machinery are, the temperature never reaches setpoint — the budget goes on heating air near the roof that nobody benefits from.

The OXA approach

Advantage	What it means in practice
Vortex flow technology	the diffuser creates a directed stream that needs 25–30 % less air volume to reach the target temperature
Savings up front and in use	less air means smaller equipment (lower capital cost) and lower electricity and heating bills
Stratification under control	the system actively returns heat from ceiling level straight into the occupied zone
Genuinely year-round	the same unit performs in heating and in cooling — even conditions in every season