Heating and ventilation for large buildings

Econo-Air gas-fired heating and ventilation systems from Stokvis are designed for large buildings across a range of industrial and commercial applications — such are warehouses, factories, sports centres and theatres. They are available as direct-fired and indirect-fired units and are flexible and highly adaptable to end-user requirements.

A choice of distribution heads gives the option of ductless air distribution. Where ductwork is required, a system can be configured to allow for ductwork resistance of up to 2 kPa, making them suitable for use with air induction systems.

Direct-fired units are available with outputs from 15 to 900 kW and provide a fixed rate of heated fresh air. Where a constant-rate extract system is employed, these units supply make-up air to maintain a pressure balance and prevent a build up of negative pressure inside the building.

Indirect gas-fired units are available with outputs from 30 to 1200 kW.

Variable-air-volume (VAV) models allow the volume of heated make-up air to vary in response to changing requirements. They supply 100% fresh air at all times, but the volume is adjusted automatically.

Variable-air-recirculating (REC) models provide a constant air volume with up to 80% recirculated air for high energy efficiency. The proportions of fresh air to recirculated can be pre-set and is adjusted automatically.

The units are Energy Technology listed by the Carbon Trust (depending on application) and as such allow qualifying users to claim 100% enhanced capital allowances.

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