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Southwest Gas tankless water heater rebate in Nevada

Southwest Gas lists a rebate of $175 per unit for a whole-home natural gas tankless water heater with a Uniform Energy Factor (UEF) of 0.90 or higher. It is part of the 2026-2028 Nevada Residential Incentives Program, and the application has to be in by January 31 after the year you installed the heater.

The rebate at a glance

	What the Southwest Gas application says
Amount	$175 per unit
Product	Natural gas tankless water heater, whole home
Efficiency	Uniform Energy Factor (UEF) of 0.90 or higher
Who can apply	Residential homeowners, renters and individually metered multifamily properties with an active Southwest Gas account at the install address
Program year	January 1 through December 31. The heater must be bought and installed inside that year.
Deadline	Postmarked or submitted online by January 31 after the program year
Funding	Limited. First come, first served until the year ends or the money runs out.

From the 2026-2028 NV Residential Incentives Program rebate application, form dated 09/2026. Southwest Gas says program dates can change without notice, so read the current form before you buy.

How to claim it

Check the model first. Southwest Gas keeps a list of qualifying model numbers on its Nevada efficiency page. Ask your installer for the model number and its UEF before you sign.
Install it. The heater has to be installed before you apply. The install address must match your Southwest Gas service address.
Keep an itemized receipt or invoice. It needs the retailer or contractor's name, address and phone number, the purchase date, the model and serial number, the efficiency rating, the itemized cost and proof it was paid.
Apply one way only. Online, by email or by mail. Southwest Gas says not to send the same application twice.

What it does not cover

Tank water heaters. The water heating line on the Nevada residential application is tankless only.
Electric tankless units. The rebate is for natural gas models.
New construction by a builder, and commercial or master-metered properties. Those use separate Southwest Gas applications.
The same product twice under different Southwest Gas programs.

Is $175 enough to switch to tankless?

On its own, no. A tank-to-tankless change often needs a bigger gas line and new venting, and those cost far more than the rebate returns. The rebate is a small discount on a decision you make for other reasons: endless hot water, garage space, or a long stay in the house. See tank or tankless in Las Vegas.

Two local points to plan for. Las Vegas water is very hard, so a tankless unit needs regular descaling; see hard water and your water heater. And the switch needs a permit and an inspection; see water heater permits.

Common questions

How much is the Southwest Gas tankless water heater rebate in Nevada?

The 2026-2028 Nevada Residential Incentives Program application lists $175 per unit for a whole-home natural gas tankless water heater with a UEF of 0.90 or higher.

Is there a rebate for a tank water heater in Las Vegas?

Not on the Southwest Gas Nevada residential application. Its water heating rebate is for natural gas tankless units only.

What is the deadline to apply for the Southwest Gas rebate?

The application must be postmarked or submitted online by January 31 after the program year in which the heater was bought and installed. Funds are limited and paid first come, first served.

Can a renter get the rebate?

The application is open to residential homeowners, renters and individually metered multifamily properties, as long as there is an active Southwest Gas account at the install address.

Sources: Southwest Gas: 2026-2028 Nevada Residential Incentives Program rebate application (PDF, 09/2026) · Southwest Gas: rebates and promotions