Navien and Rinnai are the two most-installed tankless water heater brands, and both are excellent. The difference is in the condensing technology and the recirculation features.
The condensing
Both use condensing technology that captures extra heat, but Navien is known for pushing efficiency with its NPE series. hard water and mineral buildup are the norm, and the desert heat stresses outdoor lines and water heaters In Tempe, the efficiency shows on the gas bill.
The recirculation
Navien builds a recirculation pump into many models, while Rinnai offers it as an add-on kit. hard water and mineral buildup are the norm, and the desert heat stresses outdoor lines and water heaters In Tempe, the built-in pump makes hot water arrive faster.
The sizing
Rinnai's sizing calculator is well documented, and Navien offers units up to very high flow rates. hard water and mineral buildup are the norm, and the desert heat stresses outdoor lines and water heaters In Tempe, the right size depends on the fixture count.
The support
Both have strong dealer networks, and Rinnai has a long track record in the US market. hard water and mineral buildup are the norm, and the desert heat stresses outdoor lines and water heaters In Tempe, a pro can get parts and training for both.
The price
Both sit in the same premium range, with Navien slightly ahead on included features. hard water and mineral buildup are the norm, and the desert heat stresses outdoor lines and water heaters In Tempe, the installed price is close either way.
The reliability
Both have strong reliability records, and the maintenance matters more than the brand. hard water and mineral buildup are the norm, and the desert heat stresses outdoor lines and water heaters In Tempe, a yearly descale keeps either running.
The call
Pick the unit your installer services best. Call 888-217-3585 and Tempe Home Plumbing Co will match you with a Tempe pro for the install.
Plumbing in Tempe: what to know
In Tempe, hard water and mineral buildup are the norm, and the desert heat stresses outdoor lines and water heaters. Pros in our network know the local quirks and bring the right parts on the first visit.
Across Maricopa County — from Guadalupe, Chandler and Paradise Valley to ZIP codes like 85282, 85283, 85281 — homeowners deal with the same kinds of issues. The tips above apply locally, and when a job goes beyond a quick fix, a vetted local pro is only a call away.
Need a hand in Tempe?
If a plumbing issue is beyond a quick fix, don't wait for it to get worse. Call 888-217-3585 and Tempe Home Plumbing Co will match you with a vetted local pro — usually within minutes. Learn more about plumbing help in Tempe.