Low NOx pool heaters, like Raypak’s Digital Low NOx models, are designed to produce lower levels of nitrogen oxide (NOx) emissions, a type of pollutant that can contribute to smog, acid rain, and respiratory issues. Some areas, such as certain counties in Southern California and all commercial applications in Texas, have strict NOx emission standards. Raypak’s Low NOx heaters meet these standards by using fan-assisted combustion technology, which burns fuel more cleanly, making them not only environmentally friendly but also highly efficient. For users in areas with NOx regulations, Raypak offers Low NOx model that provides the same reliable heating performance with reduced emissions. Be sure to check your local requirements before ordering.