SJVUAPCD 4308 - 1 12/17/2009 RULE 4308 BOILERS, STEAM GENERATORS , AND PROCESS HEATERS – 0.075

MMBtu/hr to less than 2.0 MMBtu/hr (Adopted Octobe r 20, 2005, Amended December 17, 2009)

1.0 Purpose

The purpose of this rule is to limit emissi ons of oxides of nitrogen (NOx) from boilers, steam generators, process he aters and water heaters.

2.0 Applicability

This rule applies to any pers on who supplies, sells, offers for sale, installs, or solicits the installation of any boiler, steam generator, pr ocess heater or water h eater with a rated heat input capacity greater than or equal to 75,000 British thermal units pe r hour and less than 2,000,000 British ther mal units per hour.

3.0 Definitions

3.1 APCO: the Air Pollution Co ntrol Officer of the San Joaquin Valley Unified Air Pollution Control District, or any person au thorized to act on behalf of the APCO.

3.2 Boiler, Steam Generator or Water H eater: any external combustion equipment fired with any liqu id or gaseous fu el to produce hot water or steam.

3.3 British Thermal Unit (Btu): the amount of heat required to raise the temperature of one pound of water from 59 o F to 60 o F at one atmosphere.

3.4 California Public Utility Commission (PUC) Quality Natural Gas: any gaseous fuel, gas-containing fuel wher e the sulfur content is no more than one-fourth (0.25) grain of hydrogen sulfide pe r one hundred (100 ) standard cubic feet and no more than five (5) grains of total sulfur per one hundred (100) standard cubi c feet. PUC quality natural gas also means high meth ane gas of at least 80% methane by

volume.

3.5 Certified Retrofit Kit: a ny burner, ancillary controls or blowers that have been demonstrated to comply with th e provisions of this rule in Section 6.1, on a retrofit basis, on a particul ar model of unit.

3.6 District: as defined in Rule 1020 (Definitions).

3.7 Heat Output: the enthalpy of the working fluid output of the unit.SJVUAPCD 4308 - 2 12/17/2009 3.8 Higher Heating Va lue (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 resulti ng products are bro ught to their stan dard states at

standard conditions.

3.9 Humidifier: a device or system that us es an air stream heat ed by a direct contact combustion process in combination with a wa ter spray to produce warm air of high humidity in order to maintain or increase th e moisture content of the material being processed or conveyed by th e air stream. For the purpose of this rule, such a device is not considered a boiler, steam generator or process heater.

3.10 Instantaneou s Water Heater: a wate r heater with a rated heat input capacity per

hour that heats water on ly when it flows through a heat exchanger.

3.11 Manufactured Home: as defined in 42 United St ates Code Section 5402 and

California Health and Sa fety Code Section 18007.

3.12 NOx Emissions: th e sum of oxides of nitr ogen (NOx) in the flue gas, collectively expressed as nitrogen dioxide.

3.13 Process Heat er: any combustion equi pment fired on gaseous or liquid fuel, which

transfers heat from combusti on gases to water or process streams. Process heaters exclude kilns or ovens used for drying, ba king, cooking, calcini ng, heat treating, or vitrifying.

3.14 Rated Heat Input: th e heat input capacity , usually expressed as million Btu per hour, usually specified on the na meplate of the unit . If the unit ha s been physically modified such that its maximum heat inpu t differs from what is specified on the nameplate, the modified maxi mum heat input shal l be considered as the rated heat input and made enfor ceable by Permit to Operate or Regist ration Certificate.

3.15 Recreational Vehicle: any vehicle used for recreational purpos es and designed to include a water heater and is required to be licensed to be driven or moved on the highways of California.

3.16 Unit: any boiler, process heater, or water h eater as defined in this rule.

4.0 Exemptions

The provisions of this rule shall not apply to:

4.1 Units installed in ma nufactured homes, and

4.2 Units installed in recreational vehicles.5.0 Requirements

5.1 Until December 31, 2010, 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 been certified pursuant to Section 6.1 and complies with Table 1, Tier 1 NOx limits and CO limits sp ecified in Section 5.3.

5.2 On, and after January 1, 2011 a person sh all not supply, sell , offer for sale, install or solicit the installation of any boiler, process heater or water heater unless it has been certified pursuant to S ection 6.1 and complies with Table 1,

Tier 2 NOx limits and CO limits specified in Section 5.3.

5.3 Units with a rated heat input capacity of 400,000 Btu per hour to less than 2,000,000 Btu per hour sha ll not exceed the CO limit of 400 ppm at 3% stack gas oxygen by volume on a dry basis.

Table 1

Emissions Limits Type and Size of Unit, NOx Limit

in MMBtu/hr ( at 3% stack gas oxygen by volume on a dry basis )

All Fuels PUC Gas Non PUC Gas or Liquid

Tier 1

lb/MMBtu of heat input (ppmv) Tier 2

lb/MMBtu of heat input (ppmv) Tier 2

lb/MMBtu of heat input (ppmv) Units greater than or equal to 0.075 but less than or equal to 0.4, except as specified below 0.093 (77) 0.024 (2 0) 0.093 (77)

Units greater than 0.4 but less than 2.0, except as specified below 0.036 (30) 0.024 (20) 0.036 (30)

Instantaneous water heaters and pool heaters greater than or equal to 0.075 but less than or equal to 0.4 0.093 (77) 0.068 (55) 0.093 (77)

Instantaneous water heaters and pool

heaters greater than 0.4 but less than

2.0 0.036 (30) 0.024 (20) 0.036 (30)

6.0 Administrative Requirements

6.1 Methods of Emissi on Certification

6.1.1 Certified emissions levels shall be demonstrated by an emission certification approv ed under either of the following:

SJVUAPCD 4308 - 3 12/17/2009SJVUAPCD 4308 - 4 12/17/2009 6.1.1.1 The District’s certification program as describe d in Section 6.2

and 6.3 of this rule.

6.1.1.2 The South Coast Air Quality Management District (SCAQMD)

Certification List fo r Rule 1146.2. Units cer tified pursuant to Rule 1146.2 must comply with applicable emission limits pursuant to District Rule 4308 Table 1 and the compliance

schedule in Section 7.0.

6.1.1.3 Other emission certifi cation programs approv ed by the EPA and

APCO.

6.2 District Certification Program Specifications – Unit Manufacturer

6.2.1 For each new unit or retrofit kit to be certified, the manufacturer shall obtain from an independent testing la boratory, a certifi cation source test verifying compliance with the emission limits in Section 5. 0. The results should be submitted with 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 propose d certification of the model by the

District.

6.2.3 Tests shall be conduc ted and reports shall be prepared according to District Rule 1081 (Source Sampli ng) and the “Nitrogen Oxides Emissions Compliance Testing for Na tural Gas-Fired Water Heaters and Small Boilers,” Protocol, South Coas t Air Quality Management District, Source Testing and Engineering Branch, Applied Science and Technology.

6.2.4 District certification fo r a manufacturer shall be valid for three years

from the date of certification.

6.2.5 The District shall publish and mainta in a list of certi fied emissions for

the tested unit.

6.3 Compliance Report

The compliance report shall be submitted to the District and shall contain the following information:

6.3.1. Name and addr ess of manufacturer,

6.3.2 Brand name,SJVUAPCD 4308 - 5 12/17/2009 6.3.3 Model number, as it appear s on the permanent nameplate, and

6.3.4 Description of the model unit or retrofit kit being certified, including burner type and rated heat input capacity.

6.3.5 A report on the certification te st specified in Section 6.2.3.

6.3.6 A signed and dated statement at testing, under pena lty of perjury, to the accuracy of all statem ents and information in the compliance report.

6.4 Identification of Compliant Units

The manufacturer subject to Section 6. 2 shall display the model number and the
certification status, as determ ined in Section 6.2 of this rule, of an applicable unit or retrofit kit on the permanent namepl ate of the unit or kit. If packaging obscures the permanent nameplate, the model number and certification status shall also appear on the packaging.

7.0 Compliance Schedule

7.1 Until December 31, 2010, a person shall comply with the requirements of Section

5.1 and Section 5.3

7.2 On and after January 1, 2011, a person shall comply with the requirements of

Section 5.2 and Section 5.3.SJVUAPCD 4308 - 6 12/17/2009 This page intentionally blank.