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Rinnai · RU, RUR, RL and V series

Rinnai tankless water heater flush & descaling in Utah.

Rinnai builds durable units, but durability depends on a clean heat exchanger. We flush and descale Rinnai heaters for a flat $225 and leave the dated maintenance record Rinnai's warranty asks for.

★★★★★ 5.0 · 63 Google reviews🏅 Noritz PROCARD Verified · Top 1%📍 Based in Lehi · Utah County & south Salt Lake County

What Rinnai requires — and what Utah water does to it

Rinnai's maintenance guidance calls for periodic flushing to remove scale, and Rinnai's heat-exchanger warranty assumes the unit has been maintained. On Utah water we recommend once a year — more often if you don't have a softener. We connect to the isolation valves, circulate descaler through the exchanger, clean the inlet filter and check the unit's error history before we leave.

Rinnai condensing models (RU and RUR series) have a secondary exchanger that recovers extra heat; it also gives scale a second place to collect. If your Rinnai is taking longer to reach temperature or cycling on and off mid-shower, that's the usual cause.

Flat-rate pricing — same for every brand

Flush Pros Flush

$225
$25 inspection + $200 flush
  • Full descale circulation
  • Inlet filter cleaned
  • Venting & connections inspected
  • Dated warranty service record
  • About 1 hour

Noritz filter replacement

$25 add-on
  • Replaces a clogged inlet filter
  • Done during your flush
  • OEM part

Water softener flush

$50 add-on
  • Added to the same visit
  • Restores resin performance
  • Every 2–5 years

Flush Club

$199/yr
  • We put your flush on the calendar
  • Price locked, warranty record kept
  • 5% off add-ons & water treatment
  • What's included →

What's included in a Rinnai flush

Other brands we service:

Questions Rinnai owners ask

Do you service Rinnai condensing and non-condensing units?

Yes — RU and RUR condensing models, RL and V-series non-condensing models, and the Sensei line. Text a photo if you're unsure.

Do you check error codes?

Yes. We pull the stored error history before the flush, clear it after, and note anything that looked like more than scale on your service record.

How often does a Rinnai tankless need flushing in Utah?

Once a year, minimum. Utah County and south Salt Lake County water tests 12–30 grains per gallon depending on the city; homes without a softener may need it every 6–9 months.

5.0 stars. 63 reviews. Not one below five.

★★★★★

"They helped us get back our warranty on our water heater and were super easy to work with. They showed up on time, finished early and we will definitely be using them again!"

Alec CrestaniGoogle review · Herriman · tankless flush
★★★★★

"Sebastian was VERY professional with his work. Notified me when he was on his way. ON TIME and he answered all of my questions. Left the area cleaner than it was before he started."

Rebekah KleinGoogle review · Saratoga Springs · tankless flush
★★★★★

"Professional, on time, and great communication. Went thru them twice and will continue to use them for my annual tankless water heater flush."

Ryan PriceGoogle review · Lehi · repeat customer

Read all 63 reviews on Google →

Schedule your Rinnai flush now.

Pick a time online — real calendar, real availability. Tell us the model or send a photo of the unit.