UDSB units are fitted with a direct drive centrifugal fan for ducted applications or free blowing heaters at increased mounting heights.

The UDSB models are available with heat outputs ranging from
15kW – 64kW. Modulating burner is fitted as standard to
each model, which requires a 0 to 10v DC signal to operate.

All units are available for natural gas (G20) as standard, but alternatively can be specified for use on Propane (G31).