SACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

March 25, 2010 414-1

RULE 414, WATER HEATERS, BOILERS AND PROCESS HEATERS RATED LESS THAN 1,000,000

BTU PER HOUR Adopted 08-01-96 (Amended 03-25-10)

INDEX

100 GENERAL
101 PURPOSE
102 APPLICABILITY 110 EXEMPTION, WATER HEATERS IN RECREATIONAL VEHICLES 111 EXEMPTION, POOL/SPA HEATERS 112 EXEMPTION, WATER HEATERS, BOILERS AND PROCESS HEATERS FIRED WITH
LIQUEFIED PETROLEUM GAS

200 DEFINITIONS
201 BOILER

202 BTU

203 HEAT INPUT
204 HEAT OUTPUT
205 LIQUEFIED PETROLEUM GAS
206 MOBILE HOME WATER HEATER
207 NATURAL GAS
208 POOL/SPA HEATER
209 PROCESS HEATER
210 RATED HEAT INPUT CAPACITY
211 RECREATIONAL VEHICLE
212 WASTE HEAT RECOVERY BOILER

213 WATER HEATER

300 STANDARDS
301 EMISSION LIMITS 302 SELL-THROUGH OF WATER HEATERS, BOILERS AND PROCESS HEATERS

400 ADMINISTRATIVE REQUIREMENTS
401 CERTIFICATION REPORT
402 MANUFACTURERS' LABELING REQUIREMENT

500 MONITORING AND RECORDKEEPING
501 TESTING PROCEDURE
502 DURATION OF RECORDSSACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

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March 25, 2010 414-3 100 GENERAL

101 PURPOSE: To limit the emission of nitrogen oxides (NO

x ) from water heaters, boilers and process heaters.

102 APPLICABILITY: This rule shall apply to any person who manufactures, distributes, offers for sale, sells, or installs any type of water heater (such as tank or tankless/instantaneous), boiler or process heater, with a rated heat input capacity less than 1,000,000 British thermal units per hour (Btu/hr), fired with gaseous or nongaseous fuels, for use in this District.

110 EXEMPTION, WATER HEATERS IN RECREATIONAL VEHICLES: This rule shall not apply to water heaters used in recreational vehicles.

111 EXEMPTION, POOL/SPA HEATERS: This rule shall not apply to pool/spa heaters with a heat input rating of less than 75,000 Btu/hr.

112 EXEMPTION, WATER HEATERS, BOILERS AND PROCESS HEATERS FIRED WITH
LIQUEFIED PETROLEUM GAS: This rule shall not apply to water heaters, boilers and process heaters fired with liquefied petroleum gas.

200 DEFINITIONS

201 BOILER: Any external combustion equipment fired with any fuel used to produce hot water or steam, excluding waste heat recovery boilers.

202 BTU: British thermal unit or units.

203 HEAT INPUT: The heat of combustion released by fuels burned in a unit based on the higher heating value of the fuel. This does not include the enthalpy of incoming combustion

air.

204 HEAT OUTPUT: The product H
o as defined in Section 9.3 of the South Coast AQMD Protocol, as referenced in Section 501 of this rule.

205 LIQUEFIED PETROLEUM GAS: A compressed gas composed of one or more of the following flammable hydrocarbons: propane, n-butane, isobutane, propylene, and butenes.

206 MOBILE HOME WATER HEATER: A water heater manufactured exclusively for mobile

home use.

207 NATURAL GAS: A mixture of gaseous hydrocarbons cont aining at least 80 percent methane by volume as determined according to American Standard Test Method (ASTM) D1945-64.

208 POOL/SPA HEATER: A device in which water is heated when pool or spa water circulates through a heat exchanger.

209 PROCESS HEATER: Any unit fired with any fuel which transfers heat from combustion gases to water or process streams. Process heater does not include any dryer in which the material being dried is in direct contact with t he products of combustion, cement or lime kilns, glass melting furnaces or smelters.

210 RATED HEAT INPUT CAPACITY: The heat input capacity specified on the nameplate of

the combustion unit. If the combustion unit has been altered or modified such that its maximum heat input is different than the heat input capacity specified on the nameplate, the new maximum heat input shall be consider ed as the rated heat input capacity.

211 RECREATIONAL VEHICLE: A motor home, travel trailer, truck camper, or camping trailer, with or without motive power, designed for human habitation for recreational, emergency, orSACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

414-4 March 25, 2010 other occupancy, as defined pursuant to Sect ion 18010 of the California Health and Safety
Code.

212 WASTE HEAT RECOVERY BOILER: A device that recovers normally unused energy and converts it to usable heat. Devices incorporating duct or supplemental burners that are designed to supply 50% or more of the total ra ted heat input capacity of the device are not considered waste heat recovery boilers, but are considered boilers. Waste heat recovery boilers are also referred to as heat recovery steam generators.

213 WATER HEATER: A closed vessel in which water is heated and is withdrawn for use external to the vessel at pressures not exceeding 160 psig, including the apparatus by which heat is generated and all controls and devices nece ssary to prevent water temperatures from exceeding 210 °F (99 °C).

300 STANDARDS

301 EMISSION LIMITS: A person shall only distribute, offer for sale, sell, or install within the Sacramento Metropolitan Air Quality Management District a water heater, boiler or process heater with certified NOx and CO emissions less than or equal to the following limits:

NOx Limit Nanograms per Joule of Heat Output (ppmv @ 3% O 2 )* CO Limit ppmv @ 3% O 2 Heat Input

Range

and Type Effective
3/1/1997 Effective
1/1/2011 Effective
1/1/2013 Effective
1/1/2011 < 75,000 Btu/hr

Mobile Home

All others 50

40 40 (55) 10 (15) No Limit

No Limit 75,000 to < 400,000 Btu/hr Pool/Spa

All others No Limit

No Limit 40 (55) 40 (55) 14 (20) No Limit

No Limit 400,000 to < 1million Btu/hr All Types No Limit 14 (20) 400

* Where limits are shown in units of both nanograms per joule of heat output and ppmv at 3% oxygen, compliance can be demonstrated using either limit.

302 SELL-THROUGH OF WATER HEATERS, BOILERS AND PROCESS HEATERS: An applicable water heater, boiler or process heater manufactured prior to the January 1, 2011 or the January 1, 2013 effective date specified fo r that unit in Section 301 may be distributed, offered for sale, or sold for up to 6 months after the specified effective date. In addition, a water heater, boiler or process heater manufactured before the effective date specified for that unit in Section 301 may be installed at any ti me, after the specified effective date, so long as it complied with the standards in Section 301 and 302 in effect at the time the unit was sold to the owner/operator of the water heater, boiler or process heater.

400 ADMINISTRATIVE REQUIREMENTS

401 CERTIFICATION REPORT: 401.1 A manufacturer of any water heater, boiler, or process heater s ubject to Section 300 shall submit to the Air Pollution Control Officer (APCO) a compliance report that demonstrates each model manufactured by it and subject to this rule is in compliance with the provisions of Section 300 at least 30 days prior to being sold or distributed for sale within the District. Regardless of whether a permit is required, the manufacturer submitting a certification repor t must pay the fee in Rule 301, PERMIT FEES – STATIONARY SOURCE, Section 311. The compliance report shall include the following information: a. Name and address of manufacturer;SACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

March 25, 2010 414-5 b. Brand name and model; c. Model number as it appears on the rating plate; d. Fuel type unit is fired with; e. Description of each water heater model being certified; f. Heat input rating; g. All compliance test procedures and results, as performed by an independent testing laboratory, in accordance with Section 501; h. All calculations for determining compliance; and i. A signed and dated statement attesting to the accuracy of all statements and information in the compliance report. 401.2 In lieu of Sections 401.1(g) and 401.1(h), a manufacturer may submit to the District, at least 30 days prior to a model being sold or distributed for sale within the District, an approved South Coast Air Quality Managem ent District (SCAQMD) certification pursuant to SCAQMD Rules 1121 or 1146.2.

402 MANUFACTURERS' LABELING REQUIREMENT: A manufacturer shall display the model number and the manufactured year of the water heater, boiler or process heater complying with Section 300 on the shipping carton and on the rating plate of each unit. The manufacturer shall also display the certific ation status on the shipping carton and on the water heater, boiler or process heater.

500 MONITORING AND RECORDKEEPING

501 TESTING PROCEDURE: 501.1 Any natural gas-fired water heater, boiler or process heater to wh ich this rule applies shall be tested in accordance with the South Coast Air Quality Management District

Protocol: Nitrogen Oxides Emissions Compliance Testing for Natural Gas-Fired
Water Heaters and Small Boilers , as amended January 1998. 501.2 Any water heater, boiler or process heater fired with a fuel other than natural gas, to which this rule applies, shall be tested in accordance with the test methods below.

All emission determinations shall be made while the unit is operating according to the

manufacturer’s recommendations. Tests shall be conducted while the unit is operating at a firing rate that is as cl ose as physically possible to the unit’s recommended heat input capacity. Tests shall consist of three 40-minute sampling periods. Results shall be averaged over the three test periods. Test reports shall include the operational characteristics of all flue-gas NOx reduction equipment. a. Oxides of Nitrogen – ARB Method 100 or EPA Method 7E.
b. Carbon Monoxide – ARB Method 100 or EPA Method 10. c. Stack Gas Oxygen – ARB Method 100 or EPA Method 3A.
d. Carbon Dioxide – ARB Method 100 or EPA Method 3A.

502 DURATION OF RECORDS: A manufacturer shall keep test r eports and certification records for as long as the water heater, boiler or process heater model is offered for sale or sold in the District, or for three calendar years after manufacture, whichever is longer. These records shall be made available to the Air Pollution Control Officer upon request.SACRAMENTO METROPOLITAN AQMD RULES AND REGULATIONS

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