Industrial Burners, Ultra-Low NOx Retrofits, and Controls
High-efficiency, ultra-low NOx burner retrofits. New McKenna Boiler Works, Inc. boilers come with a burner matched to the boiler and the emissions limit, with Autoflame controls as a standard option. Prefer a specific burner? We’ll quote it along with other options to compare.
Code-built boilers and vessels
Code repairs and alterations
Factory-authorized Tech Center
Factory-authorized Burner Tech Center
Fifth generation, family-owned
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McKenna Boiler Works, Inc. does high-efficiency, ultra-low NOx burner retrofits across California, as low as 2.5 ppm NOx (corrected to 3% O2) on select models. New McKenna boilers come with a burner matched to the boiler and the emissions limit, and Autoflame controls come as a standard option. For boilers of 2,000,000 Btu/hr or less, McKenna has units pre-certified to South Coast AQMD Rule 1146.2. McKenna also installs, sets up, and tunes burners and controls from any manufacturer, and is a factory-authorized Limpsfield Burner Tech Center and Autoflame Tech Center. Limpsfield and Power Flame burners and Autoflame controls are what McKenna can recommend, but they are not the only options. Call (323) 987-1816.
At a glance
Burner and controls overview.
Every retrofit starts with a review of your boiler, fuel, firing rate, and permit. Your proposal lists the burner, controls, and expected emissions.
Burner retrofits
High-efficiency, ultra-low NOx, sized to your boiler, fuel, and firing rate
Burners on new McKenna boilers
A burner matched to the boiler and the emissions limit, with Autoflame controls as a standard option
Fuels
Natural gas, propane, No. 2 oil, dual fuel, and hydrogen or hydrogen blends
Combustion controls
Autoflame as a standard option on new McKenna boilers; Autoflame or controls from any manufacturer on new and existing boilers
NOx
Low NOx and ultra-low NOx, as low as 2.5 ppm NOx (corrected to 3% O2) on select models
Air districts
SCAQMD, San Joaquin Valley, Bay Area, San Diego, and others
Burner preference
Prefer a specific burner? We’ll give you options
Flame safeguard parts on the shelf
Autoflame, Honeywell 7800 Series, Fireye, Siemens LMV, and flame scanners
Authorizations
Factory-authorized Limpsfield Burner Tech Center and Autoflame Tech Center
2,000,000 Btu/hr or less
Units pre-certified to South Coast AQMD Rule 1146.2
Burners and controls
Retrofit, new boiler, or controls upgrade.
Our crews set up and tune every burner and control we install, including burners and controls from other manufacturers, and service them after startup.
Ultra-low NOx burner retrofits
- A high-efficiency, ultra-low NOx burner in place of your existing burner.
- Ultra-low NOx, as low as 2.5 ppm NOx (corrected to 3% O2) on select models.
- Sized to your boiler, fuel, and firing rate, with help on the air permit.
Burners on new McKenna boilers
- A burner matched to the boiler and the emissions limit, with Autoflame controls as a standard option.
- Piped, wired, and tested on the boiler in our shop before it ships.
- Started up and tuned on site by our crews.
Autoflame combustion controls
- A standard option on new McKenna boilers. On existing boilers, an Autoflame upgrade or controls from any manufacturer.
- Fuel-air control, oxygen trim, and lead-lag sequencing for multiple boilers.
- Set up by a factory-authorized Autoflame Tech Center.
Emissions
Air district NOx rules.
Every California air district sets its own boiler NOx limits, by boiler size. We size the burner to the rule that applies to your boiler and help with the permit and source test. Outside these districts, we check the local rule first. For boilers of 2,000,000 Btu/hr or less in the South Coast AQMD, we have units pre-certified to Rule 1146.2.
Air district
Boiler NOx rules
South Coast AQMD
Rules 1146, 1146.1, and 1146.2
San Joaquin Valley APCD
Rules 4306, 4320, 4307, and 4308
Bay Area AQMD
Regulation 9, Rules 6 and 7
San Diego County APCD
Rules 69.2, 69.2.1, and 69.2.2