Adelaide Owned & Operated
0412 552 383
Continuous flow specialists

Rinnai Hot Water & Heating Adelaide

Rinnai is a leader in continuous flow gas hot water and gas heating — and a brand our Adelaide team works with every week. From the popular Rinnai Infinity range to gas heaters, we install, replace, service and repair the lot.

If your Rinnai unit is showing a fault code, running cold or overdue for a service, our licensed gas fitters will diagnose it fast and get your hot water and heating back to normal.

Rinnai systems we work with

Rinnai Infinity continuous flow

The benchmark in endless hot water. We install and size Infinity units and clear common fault codes.

Gas heating

Rinnai gas heaters and space heating — installation, servicing and safety checks by licensed gas fitters.

Heat pump hot water

Efficient Rinnai heat pump systems for households looking to cut energy bills.

Servicing & fault finding

Preventative servicing and diagnostics to keep your Rinnai running reliably through winter.

Why Dowell

Your local Rinnai specialists.

We're Adelaide-owned, fully licensed and genuinely helpful. When it comes to your Rinnai system, you get straight advice and workmanship that lasts.

  • Licensed gas fitters experienced with the full Rinnai Infinity and heating range.
  • Fast, accurate fault-code diagnosis — we get hot water and heat back on quickly.
  • Correct sizing so your Rinnai keeps up with your household's demand.
  • Upfront pricing and tidy, respectful workmanship, every visit.

Rinnai — common questions

My Rinnai Infinity is showing a fault code — can you fix it?

Yes. Rinnai fault codes point to specific issues our gas fitters diagnose regularly, from ignition faults to water flow and gas supply problems. We'll identify and repair the cause.

Do you service Rinnai gas heaters?

We service, safety-check and repair Rinnai gas heaters. Regular servicing keeps them efficient and, importantly, safe.

Can you install a new Rinnai continuous flow system?

We supply, size and install the Rinnai Infinity continuous flow range, matching the unit to your home's hot water demand and gas supply.

How often should a Rinnai system be serviced?

We generally recommend a service every couple of years, and before winter for gas heaters, to maintain efficiency and safety.

Explore all Hot Water Systems services

Book your Rinnai hot water service

Tell us what's happening and we'll help organise the right next step.

We use cookies to improve your experience. See our Privacy Policy.

Dowell Plumbing Gas Air
Launching soon

Adelaide's plumbing, gas & home-comfort experts — almost ready.

Our new website is on its way. In the meantime, we're already booking jobs across Adelaide. Blocked drains, hot water, heating & cooling — done properly.

Do it once. Do it well.