Tankless Water Heater in Queen Creek, AZ

How hard is Queen Creek water on a tankless unit?

Fairly hard. The Town of Queen Creek's water comes entirely from about 30 Town wells and is disinfected with chlorine, and its water quality report lists total hardness from 110 to 260 mg/L, averaging 206. Groundwater like this leaves calcium and magnesium scale where it's heated, which in a tankless unit is the heat exchanger. Isolation valves for a yearly flush are a must, and many owners add a softener or a scale-control cartridge. Some parts of town are served by other water providers, so check the Town's interactive service area map for your address before relying on these numbers.

Is my newer Queen Creek home ready for tankless?

Usually close. The median Queen Creek home was built around 2011, so supply piping is newer and the heater is typically in a garage with an exterior wall nearby for venting. The question is gas supply. Builders size the line for a tank, and a whole-house tankless burner can draw several times as much. The plumber checks the meter, pipe size and length before recommending a unit. Southwest Gas is the gas utility listed by the Town.

What safety points do Town inspectors flag?

Queen Creek's building inspectors warn homeowners never to remove or alter a water heater's temperature and pressure relief valve because of the explosion risk. Tankless units still carry a pressure relief valve, normally on the hot outlet or the service valve kit, and it should drain to a safe spot. Building Safety inspectors cover water piping and fixtures and verify permits; questions go to (480) 358-3009.

A Queen Creek note

When you call, you'll be connected with an independent plumber who works in Queen Creek. Have the heater's label photo, your water bill (Town or another provider) and a count of bathrooms ready, and mention any HOA rules about equipment on exterior walls. For a water leak on the Town side of the meter, call Town utilities at 480-358-3450, which also takes after-hours emergencies; a leak at the heater itself is a plumbing call, so close the cold supply valve above it in the meantime. If you smell gas, leave the house and call 911 and Southwest Gas at 877-860-6020 from outside.