Tankless Water Heater in Apache Junction, AZ

Apache Junction exempts like-for-like water heater swaps from permits, but a tankless conversion usually isn't like-for-like, because the burner rating rises and piping changes. Water comes from either the Apache Junction Water District or Arizona Water Company depending on your address, and the District's water is classified as hard. Call the number on this page to be connected with a local plumber in Apache Junction.

Wall-mounted tankless water heater with copper and PEX lines in a laundry room, tankless water heaters in Apache Junction, AZ

Local conditions in Apache Junction

Two water utilities serve the city, and the city's Find My Provider map shows which one covers your address. The Apache Junction Water District blends groundwater from the Eastern Salt River sub-basin with Central Arizona Project water filtered at the Superstition Area Water Plant; the District classifies its delivered water as hard, above 10.5 grains per gallon. Arizona Water Company relies mainly on wells and publishes its own report. Either way, a tankless unit here should be installed with isolation valves for regular descaling.

The city's list of work exempt from permits covers like-for-like electric water heaters of equal or lower amperage and gas units of equal or lower Btu with minor connection changes and code-compliant venting, including in manufactured homes. Replacing or rearranging valves, pipes or fixtures needs a permit. A whole-house gas tankless unit almost always carries a far higher Btu rating than the tank it replaces, so expect a permit from Building Safety and Inspection.

Tank swap vs tankless conversion

Item	Like-for-like tank swap	Tankless conversion
Permit in Apache Junction	Generally exempt	Usually required
Gas input	Equal or lower Btu	Typically much higher
Venting	Existing vent if code-compliant	New dedicated vent or outdoor unit
Pipe changes	Minor connections	New valves, often larger gas pipe
Hard water upkeep	Flush sediment	Descale the heat exchanger

Call now to be connected with a local plumber in Apache Junction.

(602) 313-0394

Signs it's time

The tank is leaking, rusty or slow to recover
Hot water runs short when guests visit in the cooler months
An existing tankless unit loses flow or shows scale codes
Pilot or burner trouble on an older gas tank

Timing notes

Apache Junction's cooler months bring visitors and fuller houses, which is when an undersized heater shows up, so late summer or early fall is a sensible time to plan a change. Outdoor units on exposed walls near the Superstition foothills should keep power through the occasional freeze. If you smell gas, leave first, then call 911 and Southwest Gas at 877-860-6020. Permit questions go to Building Safety at 480-982-8002, 300 E. Superstition Boulevard. When you call this page's number, you'll be connected with an independent plumber who can tell you whether your job falls inside the exemption or needs the permit.

Tankless Water Heaters questions in Apache Junction

Do I need a permit to switch from a tank to a tankless water heater?

Probably. Apache Junction exempts like-for-like replacements of equal or lower Btu or amperage, but a tankless conversion usually raises the gas input and changes piping, which needs a plumbing permit through the city's online system.

Is a water softener worth adding ahead of a tankless unit?

It's worth a look if you're on the Apache Junction Water District, which classifies its water as hard, above 10.5 grains per gallon. Arizona Water Company customers should check that company's report first.

How is a tankless heater sized for a household?

Count the showers and appliances that run together at your busiest time, then size for that flow at a winter temperature rise. A part-time household with occasional guests may size differently than a full-time family.

Who do I call if I smell gas near the water heater?

Leave the home first, then call 911 and Southwest Gas at 877-860-6020 from outside. Southwest Gas takes the call whether or not you're a customer.