NOx Calculator
Now Updated with New

If you have a boiler in the Bay Area, San Joaquin or South Coast Air Districts you may need to decrease your boiler emissions to new mandated levels. While this calculator is intended to give you a glimpse at your required NOx ppm level, there are many exceptions and additional rules that may affect your emission level and deadline requirements. Data on this calculator is provided for information purposes only, it is not to be used for local Air District compliance. Please use the contact options within the calculator to contact R.F. MacDonald Co. to get more details on your specific situation.

NOTE: The below survey is for boilers using Natural Gas or Propane as a primary fuel. For other primary fuels, please contact an R.F. MacDonald Co. representative.

PART 1 - Enter Your Boiler Information
This calculator is for boilers using Natural Gas or Propane as the primary fuels. For other primary fuels, contact an R.F MacDonald Co. representative.

What Air District are you in?
Click here for Air District Map

Maximum BTU/HR Input
(Full number such as 15,000,000)
(From boiler/burner data plate - sample)

Date of Manufacture (mm/yyyy)
(From boiler/burner data plate - sample)

Do You Need Help? Personal Information
If you would like someone from our company to contact you to help you determine your specific needs, provide you with personalized options and help you through the entire process - simply fill in the information below and a representative will call you.

* Indicates a required field so the proper office can contact you

First Name *  
Last Name *  
Company Name *  
Company Address - Street  
Company Address - City *  
Company Address - Zip  
Email *  
Phone Number *  
Mobile Number  


More NOx Info & Tools
Online Knowledge Bank

Bay area air quality management district
An audio visual presentation on the Bay Area emission regulations

San joaquin Valley pollution control district
An audio visual presentation on the basics of the San Joaquin Valley emission regulations

An audio visual presentation on the basics of the South Coast Air District emission regulations