Water Heater Installation in Tucson, AZ
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What a Tucson water heater has to deal with
Tucson doesn't ask much of a water heater when it comes to cold. Winter nights average 38°F from December through February, and homes here only need heat five months a year, November through March. A new water heater installed here isn't fighting a hard freeze most of the year, but it is working through long stretches of heat the rest of the time.
Power is the bigger question. Across Arizona, 7% of households went at least 24 hours without power in 2024, and Pima County has seen 41 winter storms and 277 damaging wind events over the past ten years. If the unit runs on a standing pilot, it will relight itself with no power at all. If it's electric or has electronic ignition, it should come back on its own once power returns. Either way, it's worth knowing which kind you have before the next outage, not during it.
Whatever size and type you choose has to meet the federal minimum efficiency for storage water heaters, which is set as a formula based on the tank's rated volume rather than one fixed number. That means two tanks of different sizes, even the same type, can face different minimums.
- 38°F
- the average winter night, and colder incoming water means longer heating
- 5 months
- November through March, the months homes here need heat
- 7%
- of Arizona households lost power for a day or more in 2024, and a heater with an electric element or electric ignition stops without it
NOAA nClimDiv, 1991–2020 normals
A heat pump water heater would save about $270 a year to run in Arizona compared with an electric water heater.
Estimates for a typical Arizona home, from EIA household energy data and Arizona fuel prices. Your home will differ.
- How do I know it's time to replace my water heater?
- The clearest sign is water around the base of the tank. Once a tank starts leaking, it does not seal itself back up, and it will keep getting worse. Rusty water, a tank that has been in service for many years, or hot water that runs out faster than it used to are the other signs worth acting on. A unit that is heating unevenly or making popping and rumbling noises is usually dealing with sediment buildup, and that shortens its life too.
- Should I switch to a tankless water heater?
- It depends on what you want out of it, not on whether your current tank still works. A tankless unit heats water on demand, so you do not run out partway through a shower, and it does not sit there keeping a tank of water hot all day the way a storage heater does. What it will not do is change your water pressure or fix hard water problems. If your house runs several hot water fixtures at once, a contractor can tell you whether one tankless unit covers that or whether you would need a setup built for it.
- What changes when you install a tankless water heater?
- The unit itself is smaller and mounts on a wall instead of taking up floor space. Tankless heaters often need a gas line sized differently than what a storage tank used, and the venting is different too, since it runs continuously while water is being drawn rather than occasionally like a tank's. Some installs need an upgrade to the gas line or vent to meet what the new unit calls for. A contractor can look at your existing setup and tell you what has to change to fit a tankless unit in.