RULE4308 BOILERS, STEAM GENERATORS, AND PROCESS HEATERS - 0.075 MMBtu/hr to 2.0 MMBtuIhr(AdoptedOctober20,2005) 1.0 Purpose The purpose of this rule is to limit emissions of oxides of nitrogen (NOx) from boilers, steam generators,process heaters and water heaters. 2.0 Applicability This rule applies to any person who supplies, sells, offers for sale, installs, or solicits the installationof any new small boiler, steam generator, process heater or water heater with a rated heat input capacity greater than or equal to 75,000 British thermal units per hour and up to but not including 2,000,000British thermal units per hour. 3.0 Definitions 3.1 APCO: the Air Pollution Control Officer of the San Joaquin Valley Unified Air PollutionControl District,or anyperson authorized to act on behalf of the APCO. 3.2 Boiler or Water Heater: any external combustion equipment fired with any liquid or gaseous fuel to producehot wateror steam. 3.3 British Thermal Unit (Btu): the amount of heat required to raise the temperatureof onepound of water from 59OFto 60°Fat oneatmosphere. 3.4 District: as defined in Rule 1020 (Definitions). 3.5 Heat Output: the enthalpy of the workingfluid outputofthe unit. 3.6 Higher Heating Value (hhv): the total heat liberated per mass of fuel burned (Btu per pound), when fuel and dry air at standard conditions undergo complete combustion and all resulting products arebrought to their standard states at standard conditions. 3.7 Humidifier: a device or system that uses an air stream heated by a direct contact combustion process in combination with a water spray to produce warm air of high humidity in order to maintain or increase the moisture contentof the material being processed or conveyed by the air stream. 3.8 Manufactured Home: as defined in 42 United States Code Section 5402 and CaliforniaHealth and Safety Code Section 18007. 3.9 NOx Emissions: the sum of oxides of nitrogen (NOx) in the flue gas, collectively expressedas nitrogen dioxide. 3.10 Process Heater: any combustion equipment fired on gaseous or liquid fuel, which transfers heat from combustion gases to water or process streams. Process heaters

SJVUAPCD 4308

### - 1 10/20/05exclude kilns or ovens used for drying, balung, cooking, calcining, heat treating or vitrifying. 3.11Unit: any boiler, process heater,or waterheater 

### as defined in this rule. 4.0 Exemptions The provisions of this rule shall not apply to: 4.1 Units installed in manufactured homes and 4.2 Humidifiers, where the products of combustion come into direct contact with the material to be heated. 5.0 Requirements 5.1 A person shall not supply, sell, offer for sale, install or solicit the installation of any boiler, process heater or water heater unless it has certified emissions complying with Table 1.0:

Table 1.0 

### +3&etJHeakeY;~~

Heat Input Capacity (MMBtulhr) Greater than or equal to 0.075MMBtuhrbut less than or equal to 0.4 MMBtar

6.0 Administrative Requirements 6.1 Emission Certification Greater than 0.4 MMBtu/hr but less than 2.0 MMBtulhr Deleted: <hq 

# 1

-- NOx Limit 0.093 lbs ofNOxIMMBtu of heat output at 3% stack gas oxygen by volume on a dry basis.

SJWAPCD COLimit

Not Applicable.

lbs 

### of of heat input at 3% stack gas oxygen by volume on a dry basis. 400ppm at 3% stack gas oxygen by volume on a dry basis.6.1.1 Certified emissions levels shall

### be demonstrated by 

### an emission certification approvedunder eitherof thefollowing: 6 .l.1.1 The District's certification program as described in Section 6.2 of this rule. 6.1.1.2 The South Coast Air Quality Management Dismct Certification List for Rule 1146.2. 6.1.1.3 Other emission certification programs approved by the EPA and APCO. 6.2 District CertificationProgram 6.2.1 For each model to be certified, the manufacturer shall obtain from an independent testing laboratory, a certification source test verifying compliancewith the emission limits in Section5.0. The results should be submittedwith the compliance report information in Section 6.3. 6.2.2 Source tests shall be conducted on a randomly selected unit no more than 90 days prior to the date of proposed certification of the model by the District. 6.2.3 Tests shall be conducted and reports shall be prepared according to the "Nitrogen Oxides Emissions Compliance Testing for Natural Gas-Fired Water Heaters and Small Boilers," Protocol, South Coast Air Quality Management District, Source Testing and Engineering Branch, Applied Scienceand Technology. 6.2.4 District certification shall 

### be valid for three years from the date of certification. 6.2.5 The District shall publish and maintain a list of certified emissions for the tested unit.

6.3 Compliance Report 6.3.1 The compliancereport shall contain the following information:

SJWAPCD

### 6.3.1.1 General Information: 6.3.1.1.1 Name and address ofmanufacturer, 6.3.1.1.2 Brand name. 6.3.1.1.3 Model number, as it appears on the permanent nameplate, and 6.3.1.1.4 Description of the model being certified, including burner type andrated heat input capacity. 6.3.1.2 A 

### report on the certification test specified in Section 6.2.3. 6.3.1.3 A signed and dated statement attesting, under penalty of perjury, to the accuracy of all statements and information in the compliance report. 6.4 Identificationof Compliant Units The manufacturer shall display the model number and the certification status, as determined in Section 6.1 and 6.2 of this rule, of an applicable unit on the permanent nameplate. If packaging obscures the permanent nameplate,themodel number and certification status shall also appear on the packaging. 7.0 Compliance Schedule On and after January 1,2007, no person shall supply, sell, offer for sale, install or solicit the installationof a unit subjecttothis rule unless itmeets therequirements of Section 5.1.

SJVUAPCD