The Problem: Heat Stratification in Buildings with High Ceilings

 

In a warehouse or factory with high ceilings, warm air rises and accumulates at roof level while the floor where staff are working stays cold. The temperature at roof height can be 10 to 20 degrees warmer than the occupied zone. The thermostat reads low, so the heater keeps firing, consuming more fuel while the warmest air sits uselessly at the ceiling. In buildings with ceiling heights of 10 metres or more, this stratification can waste up to 30% of the total heating energy.

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Destratification fans solve this by mounting at high level and gently pushing warm air from the ceiling back down to floor level. They move large volumes of air at low speed, mixing the temperature throughout the building without creating uncomfortable draughts. The heat your system produces reaches the occupied zone where it is needed.

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Key Benefits of Destratification Fans

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• Reduce heating costs by up to 30%: Recovering warm air from the ceiling reduces the fuel your heating system burns to maintain the target temperature. Payback on investment is typically very fast

• Even temperatures from floor to ceiling: Consistent conditions throughout the building instead of hot zones near the roof and cold zones on the floor

• Lower carbon emissions: Less fuel burned means lower CO2. One of the simplest upgrades for businesses working towards sustainability or net zero targets

• Easy to retrofit: Can be added to any existing warm air heating system with no changes to the heaters themselves

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Hadar DSF Destratification Fan

 

The Hadar DSF is a destratification fan engineered for industrial buildings. It redistributes warm air from ceiling to floor level without creating draughts, with automatic thermostatic control that activates only when needed.

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• Automatic thermostatic control: Runs only when the temperature difference between ceiling and floor reaches a set threshold

• Quiet, robust construction: Built for continuous use in demanding warehouse and factory environments

• Quick retrofit: Mounts at high level on the roof structure with minimal disruption to operations

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Evel WZ HVLS Fan

 

For the largest warehouses and distribution centres, the Evel WZ HVLS (High Volume Low Speed) fan provides destratification across very wide floor areas from a single unit.

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• Blade diameters up to 7.3 metres: Covers very wide floor areas from a single ceiling-mounted unit

• Year-round use: Destratification and heat recovery in winter, cooling breeze for staff comfort in summer

• Low speed, high volume: Gently mixes air throughout the building without creating uncomfortable draughts

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Which Heating Systems Benefit from Destrat Fans?

 

Destratification fans improve the performance of virtually any warm air heating system in a building with high ceilings including gas-fired unit heaters (Apen LRN and Apen LKN), cabinet heaters (Hadar Zephr), LPHW unit heaters (Apen AX and Reventon S-3S) and oil-fired heaters (Hadar Fornax). They are not an optional extra. They are an essential part of any efficient industrial warm air heating installation.

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Contact Hadar Industries today for a free site survey and recommendation on the right destratification solution for your building.