Ultra Low Nox Water Heater Requirements

Certain counties in the state of california are required to meet south coast air quality management district s nox emissions requirements.

Ultra low nox water heater requirements.

For ultralow nox the emissions are between 7 to 15 ppm. Our low nox solution. Or an equipment grounding conductor must be run with. Install a zero emission heat pump.

Both commercial grade and residential water heaters must meet lower emissions standards in those states. The ultralow nox can have 5 to 9 emissions of oxygen a turndown ratio of 4 1 or 3 1. These must be followed in all cases. This water heater must be connected to a grounded metal permanent wiring system.

This recall includes 30 40 and 50 gallon natural or propane gas fired ultra low nox emission gas water heaters. California s south coast air quality management district scaqmd and the san joaquin valley air pollution control district sjvapcd introduced ultra low nox rule 1111 and rule 4905 respectively which require nox emissions of less than 14 nanograms per joule. Please refer to the authority having jurisdiction for guidance. All other states require standard models.

The burners use fgr adjusted fuel air ratios plus a staging in order to have low emissions. I d like to answer a few of the questions i ve heard from members of the public about the switch to ultra low nox water heaters. Shop all water heaters commercial water heaters. They are designed to comply with regulations in certain air quality districts in california and were sold primarily in california.

Ultra low nox water. Are lower nox emitting water heaters commercially available now. The state of utah has requirements limiting the nox nitrogen oxide emissions of gas water heaters. The turndowns are less than the ratio of 8 1.