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Rinnai heat pumpsSeven years, if the paperwork keeps up.

Rinnai NZ gives 7 years parts and labour on residential Rinnai heat pumps bought from June 2025. The Q Series and earlier ranges are the exception and stay on their 6 year cover. To keep it, Rinnai NZ wants the unit installed by a Rinnai accredited installer and maintained every year by a Rinnai authorised service centre. We don't sell Rinnai units and aren't a Rinnai dealer.

Updated 29 October 2026 · Written by the Find My Aircon team · How we check our facts

Which Rinnai heat pumps are there?

Rinnai NZ's heat pump range lists the Pro Series 2 High Wall and Pro Series Floor Console single split heat pumps, Pro Series and Pro Series 2 Ducted heat pumps, and Pro Series and Pro Series 2 Multi Split systems.

You may see Rinnai equipment called an air conditioner as well. Rinnai's own warranty uses both words: it covers heat pumps, and asks you to have your air conditioning system maintained each year.

Keeping all 7 years

  1. Use a Rinnai accredited installer

    Rinnai NZ says installation must be done by one, and that a claim may be invalid if it doesn't come with the Rinnai NZ Accredited Installer's details.

  2. Get the Certificate of Compliance

    Rinnai NZ reminds owners the installer must issue one by law. The EWRB says it's due no later than 20 days after the electrical work is done.

  3. Keep proof of purchase and the install date

    Rinnai NZ will ask for both on any claim, so file them with the certificate.

  4. Book the yearly service

    Rinnai NZ says the system should be maintained annually from the install date by a Rinnai authorised service centre, and missing that during the warranty may void it. Cleaning the filters between services is your job.

  5. Keep other hands off it

    Alterations, service or repairs by anyone other than Rinnai NZ accredited installers, service people or service centres are excluded, as is a unit re-installed away from its original spot.

Rinnai in a frosty town

Rinnai New Zealand says it doesn't exclude its heat pumps from colder climatic zones, but it can't guarantee heating performance below zero. If your winter nights regularly drop under freezing, that sentence is worth weighing.

Check the Zoned Energy Rating Label for the model on the quote. EECA says that where overnight temperatures can reach 2 degrees or less, the heating capacity at 2 degrees should be the same as, or more than, the figure at 7.

Sea air and sulphur

Rinnai NZ makes the owner responsible for adding corrosion protection where a unit goes into a corrosive environment, giving sea air, high sulphur content and industrial pollution as examples. It also excludes damage to external surfaces or refrigeration coils from normal weathering or corrosive conditions. In practice that's your call to raise, not the installer's to remember.

Your side of the deal

You can

  • Clean the air filters regularly, which Rinnai NZ lists as the owner's responsibility.
  • Heat at somewhere between 18 and 22 degrees in winter, and cool at around 18 or 19 in summer, as Rinnai NZ advises.
  • Keep the manual and warranty from Rinnai NZ's downloads page with your paperwork.

Leave to a licensed installer

  • The annual maintenance, by a Rinnai authorised service centre.
  • Any repair or alteration, by someone Rinnai NZ accredits. Moving the unit to a new spot isn't covered at all.
  • Corrosion protection, if your site needs it.

What we'd do

Our take

We'd confirm the installer's Rinnai accreditation in writing on the quote, then book the first annual service with a Rinnai authorised service centre before the year's up. In a cold inland town we'd compare the 2 degree heating figure with the room's needs, rather than relying on the 7 degree one.

Questions people ask

Which Rinnai heat pumps get the 7 year warranty?
Residential Rinnai heat pumps bought from June 2025, except the Q Series and earlier ranges, which keep their 6 year parts and labour cover.
Does the Rinnai heat pump warranty need a yearly service?
Yes. Rinnai NZ says the system should be maintained every year from installation by a Rinnai authorised service centre, and that skipping it during the warranty may void the cover.
Is a Rinnai air conditioner different from a Rinnai heat pump?
Rinnai's own warranty uses both words for the units it covers. What matters is the model name, so check the one on the quote against Rinnai NZ's heat pump range and confirm it heats as well as cools.

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Where this information comes from

We don't publish prices. Every home is different, so an installer's written quote is the only real number. How we write and check these pages.

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