“The less fossil fuels we burn, the better it is for our future; all of my designs concentrate on this philosophy. We lead in innovation using the environment as our number one concern. We don’t follow…we lead.”
Industry leading 99%* thermal efficiency that combines the latest innovations.
Tri-metal stainless steel heat exchanger, and state of the art proprietary combustion control system means that not only is the Nexus the most energy efficient unit heater available, it is also the most environmentally conscious. Reduced emissions, low fuel utilization, and a reduced carbon footprint makes indoor comfort more affordable, efficient, and less harmful to the environment than any other Unit Heater.
Outdoor Air Reset Modulation
A prime example of continuous fuel efficiency is the Nexus’s Outdoor Air Reset Modulation which automatically vary discharge temperatures based on the outside air temp providing seamless modulation for optimum efficiency, perfect for our Midwest seasons.
By running at lower discharge temperatures subject to the outside temperature, units run longer at higher efficiency resulting in less cycling, lower fuel costs, and increased occupancy comfort.
As the outdoor temperature drops, discharge temperatures increase and vice versa.
Safety, Performance, and Efficiency Through Flexibility
More Nexus Features:
The only fully modulating, high efficiency unit heater produced. Utilizes a burner control and configuration that allows a 3:1 turndown for precision discharge temperature control. This means running longer and more efficient over long periods of time with reduced cycling, beating competitors in-shot burners that often result in over/under heating the occupied space and increased wear and tear on the equipment with constant cycling.
This optional sensors allows the unit to take advantage of excess heat that may be up at the ceiling to provide “free” heating to a space. Detecting air stratification near the unit, the unit will re-use that excess heat to warm the space without need for mechanical heat and results in lower fuel cost.
Modbus Communication to Building Automation System
This standard feature doesn’t require additional control modules and provides feedback to the building automation system allowing for the remote monitoring of over 30 data points including unit fault codes and notifies users with problems without them even entering the building.
Indoor Air Reset
This technology essentially learns the heating needs of the building by constantly monitoring run-time percentages and modulates accordingly. Indoor Air Reset allows the Nexus to operate at full modulation (low fire) for as long as reasonable to maintain the heating load. By running at low fire, units run longer at higher efficiency resulting in less cycling, meaning lower cost and more comfort.
Sterling HVAC provides unparalleled factory support from sales and technical resources to full application engineering support.
*Up to 99% maximum efficiency at full turndown, 95+% certified efficiency at high fire.