Tankless water heater rebates in Utah County

This guide starts with the gas rebate, then covers the electric utilities and the federal credit. Electric rebates depend on which utility serves your home, and Rocky Mountain Power's water-heating incentives cover only heat pump water heaters.

Enbridge Gas Utah: $300 for a gas tankless unit

Enbridge Gas Utah, formerly Dominion Energy Utah, runs the ThermWise appliance rebate program. Its rebate page lists $300 for a tankless gas water heater that carries the ENERGY STAR label. Enbridge's Utah tariff, as filed with the Utah Public Service Commission for 2026, lists the same measure at up to $300.

The tariff sets the main rules:

• The rebate is for residential customers on Enbridge's general service rate.
• You apply with the form and supporting documents within six months. The tariff counts from the purchase date, and Enbridge's web page counts from the installation date. Check the current form for the exact rule, and apply early to be safe.
• A dwelling can receive up to two of each measure.

In its program filing, Enbridge says rebates for most measures are available regardless of who installs the product. If you're doing the work yourself under an owner-builder permit, check the form for any installer or permit documentation it asks for.

If your home runs on propane, the ThermWise rebate won't apply. Enbridge's tariff limits it to residential customers on its general service gas rate, so a propane tankless unit falls outside the program. Ask your propane supplier whether it offers anything.

Before you buy, confirm the exact model appears on the ENERGY STAR list and meets Enbridge's equipment specification sheet. A gas tankless unit without the label doesn't qualify for this rebate.

Claiming the ThermWise rebate

The paperwork goes faster if you collect it on install day:

1. Keep the itemized invoice that shows the model number, the purchase date, and the installation date.
2. Photograph the unit's rating label, which shows the model and serial number.
3. Keep a copy of the city permit or the final inspection record.
4. Download the current ThermWise form from Enbridge's rebate page and fill it in with your Enbridge account number.
5. Submit it well before the six-month window closes, and keep copies of everything you send.

If a contractor offers to file the rebate for you, ask who receives the check. Read the form to see who it pays.

The federal tax credit has ended

The federal Energy Efficient Home Improvement Credit covered up to $600 for a qualifying natural gas water heater. The IRS says the credit applies to improvements made through December 31, 2025. A tankless unit installed in 2026 doesn't qualify, so leave it out of your budget. Older articles and some sales material still mention it.

Rocky Mountain Power: heat pump water heaters, not tankless

Rocky Mountain Power is the only rate-regulated electric utility in Utah, according to the Utah Office of Consumer Services. Its Wattsmart Homes tariff, Schedule 111 as filed in January 2026, lists water-heating incentives for heat pump water heaters. It lists no incentive for tankless water heaters, gas or electric.

If you're a Rocky Mountain Power customer weighing an electric water heater, the Wattsmart program may make a heat pump water heater cheaper than an electric tankless unit. The amount Rocky Mountain Power offers can be lower than the tariff maximum, so check its current Wattsmart page before you count on a figure.

Provo, Lehi, Spanish Fork, and Springville: city power

Four cities in the area run their own electric utilities: Provo, Lehi, Spanish Fork, and Springville. The Utah Office of Consumer Services notes that municipal electric utilities are not regulated by the Public Service Commission.

Provo's electric rebate page lists water heater rebates, but it does not say which types of electric water heater qualify. Call Provo's rebate program before you buy if you're counting on it. In Lehi, Spanish Fork, and Springville, ask the city utility.

Putting the numbers together

Questions to ask before you buy

• Who will fill out and send the rebate form, you or me?
• Will the invoice show the model number, the purchase date, and the installation date?
• Does the price you quoted already subtract a rebate, or is the rebate separate?
• If the rebate is denied, does the price change?

Get the answers in writing before work starts.