Warm-air condensing unit heaters
Combat HVAC’s range of Eco Combat condensing warm-air unit heaters achieve combustion efficiencies up to 109% net, low NOx (less than 30 ppm) and low carbon monoxide (less than 5 ppm). These heaters are said to be the smallest condensing heaters on the market. Units are 645 mm wide with heights from 690 to 845 mm. There are six models with outputs from 5 to 100 kW.
A premix burner works with a venturi valve that is controlled by a computerised electronic control board that manages all burner safety aspects and controls performance cycles to optimise the ratio of gas to air