What is The SMAQMD?

The Sacramento Metropolitan Air Quality Management District is administering Rule 414, which regulates the allowable nitrogen oxide (NOx) emissions of gas fired water heaters. This new requirement has established a NOx limit of 10 nanograms per joule of heat output (- 15 ppm) for any natural gas-fired Atmospheric Vent, Power Vent, Power Direct Vent or Direct Vent storage tank water heaters with inputs of 75,000 BTU/Hr or less.

SMAQMD and Water Heaters

Water heaters within the aforementioned classification, manufactured on, or after January 1, 2011 and sold/installed within the SMAQMD must comply with Rule 414. Non-compliant products manufactured before January 1, 2010 can continue to be distributed, offered for sale, or sold for up to 6 months after the specified effective date.

Bradford White Corporation has been able to meet this challenge by developing a series of advanced water heaters that emit 10 ng NOx/J or less. These water heaters are known as the Eco-Defender Ultra Low NOx Series water heaters.

SMAQMD Affected Areas

The District's jurisdiction covers Sacramento Metropolitan.

Some of the above information was sourced from the SMAQMD's website http://www.airquality.org.

Eco-Defender Ultra Low NOx Series- Literature

  • Eco-Defender
Spec Sheet Parts List Brochure Service Manual

Eco-Defender Product Page