Reznor is the right route to economical heating for Ensign Buses

A warm air heating system from Reznor, positioned to create a cyclonic-rotating air distribution effect, ensures comfortable temperatures are maintained in Ensign Buses’ large space depot and maintenance facility.

Ensign Buses of Purfleet are known the world over as the UK’s leading re-seller of vintage and newly-decommissioned London buses. Its yard is packed with row upon row of double-deckers in their familiar bright red livery.

The company was formed in 1972 and, over the years has provided regular bus services in the Essex/Kent and London areas. Primarily, though, it is noted for sales and hire of buses and coaches, and for a thriving sight-seeing bus business, which is now global.

Ensign Buses took over a former paper mill in 2005 and converted it into a bus depot, storage area and workshop, with an integrated MOT test lane running through it.

Because the building is an exceptionally large space to heat, with high roof to accommodate the double-decker buses, care had to be taken in the design of the heating system and positioning of the heaters to ensure adequate and evenly distributed warmth.

In a system designed by Reznor together with consulting engineers John Dunton Associates of Chelmsford, six high performance UDSA 085 warm air heaters from Reznor were installed around the premises. These were supplemented by six EnergyMizor MkIII control panels and two Maximisor 9000 air recirculation fans.

The heaters are wall-mounted and oriented to discharge warm air co-operatively – that is, to create a cyclonic-rotating air distribution effect. Warm air is distributed evenly around the building and in the aisles between the buses in maintenance bays. The effect of the system design is two-fold – it creates all-round improved comfort conditions while reducing fuel and running costs. The system runs on LPG since natural gas is not available at the site.

Additional economies are gained by introducing an automatic shut-off facility when doors are opened. As the doors raise, the burners cut out, then fire up again when the doors close.

John Dunton, MD of John Dunton Associates, comments: “This is a very large building but it is not new so the thermal properties are not ideal. The Reznor warm air heating system ensures constant working temperatures for operatives within the building.”

www.reznor.co.uk