W. Tombling Ltd.
Heating ducts for commercial buildings
Activair heating ducts are the most adaptable and efficient method of distributing and
diffusing warm air. Activair heating ducts are compatible with most warm air heaters and air handling
systems, and are used in place of metal ductwork to improve air distribution and reduce temperature gradients.
Activair heating ducts reduce energy billsActivair heating ducts help to reduce heating bills in several ways:
Reduced heat loss through the roof - By creating air movement throughout the building, temperatures in the roof space are reduced, which in turn lowers the heat loss through it.
For a modern building with 5m (16ft.) eaves savings of upto 10% per annum are possible
leading to payback is less than two years. Because of air stratification, savings increase with
the height of the building.
Activair heating ducts are suitable for use in most buildingsWide buildings - one or more heating ducts are suspended overhead on lightweight steel wires. The heating ducts have rows of large diameter holes positioned at 4 and 8 o’clock (or 5 and 7 o’clock) forcing powerful jets of warm air towards floor level.
Narrow buildings or low level ducts - More smaller holes are used, positioned at 3 and 9 o’clock to create a gentler diffused air discharge. This reduces the air velocity, stopping strong jets of warm air coming in contact with the workforce.
For more information on Activair heating ductsActivair heating ducts have been used for over 40 years in many different sizes, shapes and types of building to reduce heating bills and improve the comfort of their occupants. For more information see:
Designing an inflatable duct system
Installing Activair air ducts
Polythene ducting sizes and quotations
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