10/12 RULE 74.11.1: 1

VENTURA COUNTY AIR POLLUTION CONTROL DISTRICT

RULE 74.11.1 - LARGE WATER HEATERS AND SMALL BOILER S (Adopted 9/14/99, revised 9/11/12)

A. Applicability

Until January 1, 2013, the provisions of this rule shall apply to any person selling, offering for sale, or installing, a new natural gas -fired water heater, boiler, steam generator or process heater with a rated heat input capacity greater than or equal to 75,000 BTU/hr and less than or equal to 2,000,000 BTU/hr i n Ventura County.

After January 1, 2013, the provisions of this rule shall apply to any person selling, offering for sale, or installing, a new natural gas -fired water heater, boiler, steam generator or process heater with a rated heat input capacity greater than or equal to 75,000 BTU/hr and less than 1,000,000 BTU/hr in Ventura Co unty.

B. Requirements

1. Until January 1, 2014, no person shall not sell, offer for sale, or install in Ventura County any new unit with a rated heat input capacit y of greater than or equal to 75,000 BTU/hr and less than or equal to 400,000 BTU /hr that does not meet the following criteria:

a. Oxides of nitrogen emissions shall not exceed 4 0 nanograms per joule of

heat output (93 pounds per billion BTU), or 55 part s per million, and

b. The unit is certified in accordance with Sectio n C.

2. After January 1, 2014, no person shall sell, off er for sale, or install in Ventura County any new unit with a rated heat input capacit y of greater than or equal to 75,000 BTU/hr and less than or equal to 400,000 BTU /hr that does not meet the following criteria:

a. Oxides of nitrogen emissions shall not exceed 1 4 nanograms per joule of

heat output (32.5 pounds per billion BTU), or 20 pa rts per million, and

b. The unit is certified in accordance with Sectio n C.

Subsection B.2.a shall not apply to units specific ally designed to heat swimming pools, hot tubs or spas. For such units, oxides of nitrogen emissions shall not exceed 40 nanograms per joule of heat output (93 po unds per billion BTU), or 55 parts per million.10/12 RULE 74.11.1: 2

3. Until January 1, 2013, no person shall not sell, offer for sale, or install in Ventura County any new unit with a rated heat input capacit y of greater than 400,000 BTU/hr and less than or equal to 2,000,000 BTU/hr t hat does not meet the following criteria:

a. Oxides of nitrogen emissions shall not exceed 3 0 parts per million and

carbon monoxide emissions shall not exceed 400 part s per million, and

b. The unit is certified in accordance with Sectio n C.

4. After January 1, 2013, no person shall sell, off er for sale, or install in Ventura County any new unit with a rated heat input capacit y of greater than 400,000 BTU/hr and less than 1,000,000 BTU/hr that does not meet the following criteria:

a. Oxides of nitrogen emissions shall not exceed 2 0 parts per million and

carbon monoxide emissions shall not exceed 400 part s per million, and

b. The unit is certified in accordance with Sectio n C.

C. Certification

1. Every subject unit offered for sale in Ventura County shall be certified by the Air

Pollution Control Officer (APCO). On or before the applicable compliance date specified in Subsections B.1 or B.2, and thereafter at least 30 days prior to the date of proposed sale in Ventura County, the manufa cturer shall submit a compliance report for each applicable new or modifi ed unit by model. Certification shall be valid for three (3) years fr om the date of written approval by

the APCO.

a. For each model certified, the manufacturer shal l obtain from an

independent testing laboratory a certification sour ce test verifying compliance with the emission limits in Section B. Source tests shall be conducted on a randomly selected unit no more than 90 days prior to the date of proposed sale of the model in Ventura Count y. Tests shall be conducted and reports shall be prepared according t o Attachment A of this

rule.

b. The compliance report shall contain the followi ng information:

1). General Information

i Name and address of manufacturer,

ii Brand name,10/12 RULE 74.11.1: 3 iii Model number, as it appears on the permanent na meplate,

and

iv Description of the model being certified, includ ing burner type and rated heat input capacity.

2). A report on the source test specified in Subsec tion C.1.a

3). A signed and dated statement attesting to the a ccuracy of all statements and information in the Compliance Report

.

2. The requirements of Subsection C.1 notwithstand ing, applicable equipment

certified by the South Coast Air Quality Management District in accordance with the requirements of SCAQMD Rule 1146.2, adopted May 5, 2006, shall be considered certified for use in Ventura County.

D. Identification of Complying Water Heaters

The manufacturer shall display both the model numbe r, the date of manufacture, and the certification status, as determined in Section C of this rule, of an applicable unit on the permanent nameplate. If the permanent nameplate is obscured by packaging, the model number and certification status shall also appear o n the packaging.

E. Enforcement

1. The APCO may periodically inspect distributors, retailers, and installers of water

heaters located in the District and require such te sts as are deemed necessary to ensure compliance with the provisions of this rule.

2. Oxides of nitrogen emissions are measured as ni trogen dioxide using CARB

Method 100. Parts per million measurements are by volume and referenced to three (3) percent stack gas oxygen on a dry basis. Field emission tests shall be conducted on units fired at maximum rated capacity, or as near thereto as practicable.

F. Definitions

For the purposes of this rule the following definit ions shall apply:

1. "Boiler, Steam Generator": Any external combust ion equipment fired with liquid

and/or gaseous fuel and used to produce either stea m or hot water. These terms do not include any unfired waste heat recovery boil er that is used to recover

sensible heat from a combustion device.10/12 RULE 74.11.1: 4

2. "Heat Output": The product H o as defined in Section 9.3 of the South Coast Air

Quality Management District Protocol cited in Attachment A.

3. "New Unit": Any applicable water heater, boiler , steam generator or process

heater sold, offered for sale, or installed after J anuary 1, 2014, for units subject to the requirements of Subsection B.2 or January 1, 20 13, for units subject to the requirements of Subsection B.4.

4. "Process Heater": Any external combustion equip ment fired with liquid and/or

gaseous fuel and which transfers heat from combusti on gases to water or process streams. Process Heater does not include any kiln or oven used for drying, baking, cooking, calcinating or vitrifying or any f uel-fired degreasing or metal finishing equipment.

5. "Rated Heat Input Capacity": The gross heat inp ut capacity specified on the

nameplate of either the unit or the burner.

6. "Unit": A water heater, boiler, steam generator or process heater.

7. "Water Heater": A device that heats water at a thermostatically-controlled

temperature for delivery on demand. Water is heate d by the combustion of either liquid and/or gaseous fuel and withdrawn for use ex ternal to the vessel at pressures not exceeding 160 psig. The device inclu des the apparatus by which heat is generated and all controls and equipment ne cessary to prevent water temperatures from exceeding 210 o F (99 o C).

Attachment A

Certification Source Tests

Certification source tests, as specified in Subsect ion C.1, shall be conducted according to

" Nitrogen Oxides Emissions Compliance Testing for Na tural Gas-Fired Water Heaters and

Small Boilers ," Protocol, South Coast Air Quality Management Dis trict, Source Testing and Engineering Branch, Applied Science and Technology.