Air Rotation

Powrmatic Air Rotation Heaters are extremely enerqy efficient in heating large areas such as warehouses.

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Why choose a Powrmatic Air Rotation Heating system?
The reason to choose an air rotation system in preference to either radiant heating or suspended warm air heating may well be the promise of lower costs.  However cost benefits do not tell the whole story.  Air Rotation heaters have many other advantages.  Alternative suspended heaters or ducted systems will have been designed to suit the building and racking layout. Such systems restrict future layout changes whereas air rotation heaters leave the working zones clear permitting greater flexibility in use.  Also, because the units are floor standing long term service costs will be lower as there will be no need for the high level access equipment that would be required to service and maintain high level radiant and suspended warm units.

As the units are all floor mounted, either within the building or externally, they offer the ease of installation that comes with working at low level, whereas any high level heating scheme will require high level access equipment to carry out the installation leading to both longer times to carry out the installation and higher installation costs.

Depending on the individual installation site, there is a choice of gas or oil fuelled operation: the cost of oil is generally higher per kw/h than gas but whichever type is installed, operators can rely on reaping the benefits of lower running costs. The system of Air Rotation moves large volumes of air at low velocity and low temperature. The cooler low level air is constantly passed through the heater and discharged at high level, which effectively de-stratifies the building which in turn lowers the temperature gradient within the heated area and reduces heat losses through the structure.
Air rotation heating systems typically comprise of a small number of heat modules strategically positioned within or external to the heated space and work by circulating high volumes of air at low velocities and temperatures. The maintenance of constant air circulation within the building reduces the stratification effect often associated with conventional warm air systems and provides a uniformity of heat that is difficult to match.
Any new type of new build warehouse/distribution centre will lend itself ideally to air rotation heating. Such systems can also be installed retrospectively into existing buildings.

End users employing air rotation heaters can expect to see considerable savings in both capital and operating costs compared with current alternative methods of heating.

In operation the air rotation system for the heating of the building is best applied in a 24-hour, seven-day continuous operation. During the periods when the building is not in use the design temperature can be set back to a a level which would generally be 8-10°C below the day set point operating temperature. This will have the effect of maintaining air circulation throughout the building and will retain a suitable background temperature, and then when required the building will quickly return to the day set point design temperature.

With the air rotation units in continuous use no allowances need be applied for a pre-heat period, therefore a lower heat input is applied and with the use of either hi-low or modulating burners, lower usage and running costs will result.

Space temperature control - because of its low velocity high air volume operation air rotation provides an excellent heat distribution and tight control of space temperature.

Whether installing air rotation heating into a new building or replacing a less efficient system, the arguments are compelling: it is low on emissions, low on running costs, high on efficiency, swift to install, easy to maintain and offers a speedy payback on the investment in terms of energy cost.