Water Heater, Small Boiler, and Furnace Certifications

The Ventura County APCD has adopted Rules 74.11 - Natural Gas-Fired Water Heaters, 74.11.1 - Large Water Heaters and Small Boilers, and 74.22 - Natural Gas-Fired, Fan-Type Central Furnaces. Each rule specifies a maximum NOx emission rate that cannot be exceeded in order to receive certification. Those NOx limits are:

Rule 74.11 - Natural Gas-Fired Water Heaters: 10 nanograms per joule of heat output or 15 ppmv of NOx for water heaters rated at less than 75,000 BTU/hr. For a mobile home gas fired water heater those limits are: 40 nanograms per joule of heat output or 55 ppmv of NOx.

Rule 74.11.1 - Large Water Heaters and Small Boilers: 40 nanograms per joule of heat output or 55 ppmv of NOx for sizes greater than or equal to 75,000 BTU/hr and less than or equal to 400,000 BTU/hr. For units greater than 400,000 BTU/hr and less than or equal to 2,000,000 BTU/hr, the limit is 30 ppmv of NOx.

Rule 74.22 – Natural Gas-Fired, Fan-Type Central Furnaces: 40 nanograms per joule of heat output or 55 ppmv of NOx.

In order to obtain certification, a Compliance Report for each applicable new or modified unit, by model, must be submitted to the APCD by the manufacturer. The report should include:

 

  • The name and address of the manufacturer
  • Brand name
  • Model number, as it appears on the unit’s permanent nameplate
  • A description of the model being certified, including burner type and rated heat input capacity
  • A summary of the source test report
  • A signed and dated statement attesting to the accuracy of all statements in the Compliance Report.


Compliance Reports should be sent to:
 

Ventura County Air Pollution Control District
Attention: Ken Hall
669 County Square Drive
Ventura, CA 93003


The Ventura County APCD will accept units certified by the South Coast AQMD.
 


For additional information, please contact Ken Hall at (805) 645-1437.