Tankless Water Heaters

Upgrade to Endless Hot Water

Never run out of hot water mid-shower again. At Siv Art AZ Plumbing LLC, we specialize in high-efficiency tankless water heater installations, repairs, and maintenance across Tucson and Southern Arizona. By heating water instantly on-demand rather than keeping a large, bulky tank hot 24/7, tankless systems provide unlimited hot water while significantly reducing your monthly energy bills.

Get a Tankless Upgrade Quote

Plumber installing high-efficiency equipment

Standard tank heaters waste energy by constantly reheating water, even when you aren't home. A tankless system sits dormant until you turn on a faucet, at which point its powerful heat exchanger instantly warms the water to your exact preset temperature. In addition to massive energy savings, these compact, wall-mounted units free up valuable storage space in your garage or utility closet.

Endless, On-Demand Hot Water
Up to 40% More Energy Efficient
Space-Saving Wall-Mounted Design

Our Upgrade Process

How We Install Your Tankless System

Upgrading from a traditional tank to a tankless system requires specific modifications to your plumbing, gas lines, and venting. Our licensed technicians handle the entire conversion process safely and efficiently.

Household Demand Sizing:

We don't believe in one-size-fits-all. We calculate your home's peak hot water demand (e.g., running two showers and a dishwasher simultaneously) to recommend a unit with the exact GPM (Gallons Per Minute) capacity required to keep your family comfortable.

Infrastructure Upgrades:

Tankless heaters require a larger volume of gas for shorter periods. We safely upgrade your existing gas line sizing, install dedicated, high-flow water lines, and retrofit your exhaust venting to meet strict modern safety codes.

Mounting, Testing & Calibration:

We securely mount the compact unit to the wall, complete all connections, and calibrate the digital thermostat. We then run a comprehensive flow and pressure test to ensure instant, consistent hot water delivery at every fixture.

Tankless FAQs

Common Questions About On-Demand Heating

Making the switch to a tankless water heater is a highly rewarding investment, but it comes with a lot of questions. Below, we’ve answered the most common inquiries to help you decide if a tankless system is the right choice for your home.

Yes. While the upfront installation cost is higher than a standard tank, tankless heaters last nearly twice as long (up to 20 years). Combined with up to 40% savings on your monthly energy bills, the system easily pays for itself over its lifespan.

Yes. Because they use a highly sensitive heat exchanger, hard water minerals can build up inside the unit. To maintain peak efficiency and protect your warranty, we recommend a professional descaling and system flush once a year.

While electric tankless units exist, they draw a massive amount of electricity to instantly heat water. For a whole-home solution, they often require incredibly expensive electrical panel upgrades. We generally recommend gas-powered tankless units for maximum efficiency and performance.

"On-demand" means the unit heats water instantly as you need it, rather than storing it. However, the hot water still has to travel through the pipes from the heater to your faucet, so it will take the exact same amount of time to arrive as your old tank heater did. (Unless we install a recirculation pump!)