Did you know that boilers generally account for more than 40% of the heating energy in commercial buildings? If you are a Southwest Gas large commercial customer in Arizona who is interested in improving the energy efficiency of your business, then you may be eligible to receive a rebate on the maintenance of your existing boiler, or on the purchase and installation of a new, high-efficiency boiler.

While often neglected, regular boiler maintenance and adjustments can help your equipment function more efficiently. Boiler maintenance services and equipment that are eligible for rebates include: boiler tune-up, modulating burner control, O₂ trip control pad, steam trap survey and steam trap replacement/part.

Application Details
Rebates are available for the maintenance service and equipment for existing boilers and for the purchase and installation of new boilers completed August 15, 2010 through November 30, 2011, or until program funds are no longer available, whichever comes first. Due to limited funding, please submit your rebate application as soon as possible after purchase and installation and/or service. Applications will be processed on a first-come, first-served basis and must be postmarked by December 15, 2011.

Eligible Boiler Maintenance Services and Equipment, Requirements, and Rebate Levels

Boiler Maintenance Services and Equipment	Program Requirements1	Available Rebate
Boiler Tune-up	Tune-up must be performed and must consist of a 9 point inspection2	75% of total costs up to $375
Modulating Burner Control	Modulating burner control must be installed and must have a turndown ratio of 5:1 or greater	25% of total costs up to $5,000
O2 Trim Control Pad	O2 trim control pad must be installed	25% of total costs up to $5,000
Steam Trap Survey	Steam trap survey must be performed	25% of total costs up to $250
Steam Trap Replacement/Part	Steam trap must be repaired, installed or replaced	25% of total costs up to $250/trap (maximum of $10,000 per facility)
New Boiler	New boiler with a combustion efficiency of 85% or greater must be installed with modulating burner control. Any boiler 10 MMBTU or larger must also have an O2 trim control pad.	$1,000/MMBTUH up to 50% of total costs or $20,000, whichever is lesser

Some equipment may also qualify for a federal tax credit*.

¹ All new boilers must have an individual input rating of 2.5 MMBTUH or greater and all existing boiler systems must have an aggregated input rating of 2.5 MMBTUH or greater. All existing and new boilers must use natural gas as the primary fuel and may have duel fuel capacity for backup.

² Qualifying boiler tune-ups must have a documented nine-point inspection with the following requirements: (1) Measure combustion efficiency using an electronic flue gas analyzer (copy of combustion analyzer test must be included); (2) Adjust air flow and reduce excessive stack temperatures; (3) Adjust burner and gas input, manual or motorized draft control; (4) Clean burners, combustion chamber and heat exchange surface, when weather or operating schedule permits; (5) Clean and inspect burner nozzles; (6) Check for proper venting; (7) Complete visual inspection of system piping and insulation; (8) Check safety controls; and (9) Check adequacy of combustion-air intake.

How Do I Apply For Rebates?

To obtain an application, click here.

Required Documents

Along with the completed, signed rebate application that includes your Southwest Gas account number, please submit a copy of your invoice(s) (or receipt) that show the applicable information: where the equipment was purchased, the date(s) of purchase, the contractor(s) that serviced/installed the equipment, the date of service/installation, and the combustion analyzer test (one of the nine requirements for the boiler tune-up inspection). Note: Service(s) must be performed and new equipment must be installed prior to the payment of any rebate. Southwest Gas reserves the right to verify both the efficiency and installation of equipment before a rebate is issued.

Processing Time for Rebate
Please allow 6-8 weeks to receive your rebate(s).

Program Eligibility & Limitations

• Maintenance services performed on existing boilers, or installation of new boilers, must be at the business location of an Arizona large commercial customer receiving natural gas service from Southwest Gas.
• All new boilers must have an individual input rating of 2.5 MMBTUH or greater and all existing boiler systems must have an aggregated input rating of 2.5 MMBTUH or greater. All existing and new boilers must use natural gas as the primary fuel and may have duel fuel capacity for backup.
• The efficiency of the boiler will be determined by the H.I. Heating Boiler Standards as defined in ANSI/ASHRAE/IESNA Standard 90.1-2004.
• New or replacement boiler systems must include modulating burner controls. Any boiler 10 MMBTUH or larger must also have an O₂ trim control pad. These systems are not eligible for individual rebates for the two components.
• Each boiler is limited to one tune-up rebate every 12 months and a separate application is required for each boiler tune-up.  There is no limit on the number of tune-up rebates for different qualifying boilers per customer.
• Each facility will be limited to one steam trap survey every 36 months.

This program is funded by Southwest Gas Corporation's Arizona customers and administered by Southwest Gas Corporation. This program has been reviewed and approved by the Arizona Corporation Commission. This program may be modified or terminated without prior notice and is provided to qualified customers on a first-come, first-served basis until program funds are no longer available. Eligibility requirements also apply. Southwest Gas Corporation does not make any warranty, express or implied, or assume responsibility for the accuracy, completeness, or usefulness of any information, estimated savings, and benefits attributed to the products that qualify for this program. Reference to any specific product, project, or service by manufacturer, trade name, trademark, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by Southwest Gas Corporation. To qualify, equipment must meet technical requirements and be installed according to local building codes and ordinances and/or manufacturer's requirements. If you have questions visit swgas.com or call 1-800-654-2765 to confirm eligibility before purchasing products.