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Regions

Heat pump installers in Nelson TasmanA heating region first, whatever the summers say.

Across Nelson Tasman, a heat pump is mostly a heater: 74.41% of homes in the Nelson Region used one in the 2023 Census. The climate figures we hold come from Nelson itself, and they show regular July frosts and very humid winter mornings. Richmond, Motueka and Golden Bay each have their own weather, so treat the numbers as a guide and let the installer size for your spot.

What we know about heating in Nelson Tasman

Regular winter frosts

In an average July, Nelson sees 21 ground frosts and 11 air frosts, and over a year 31 days dip below zero (NIWA). Whatever the summers are like, a heat pump's 2 degree heating figure is the one to check here.

Heating dwarfs cooling

Nelson logs 2,108 heating degree-days a year to 56 for cooling, on NIWA's table, and MBIE's H1/AS1 puts Nelson City in climate zone 3 of six. Buy for winter, then check the cooling figure for any room that overheats in summer.

Wet winter air, drier homes

Nelson's 9 am humidity averages 90% in June and July (NIWA), yet the Nelson Marlborough health district had the lowest damp-home rate in EHINZ's 2023 chart, at 14.1%. Expect condensation on cold glass on winter mornings, and deal with it through heating and extractor fans before buying a ventilation system.

The coast

NZS 3604, as BRANZ summarises it, makes land within 500 m of the coast or a harbour, or 100 m of a tidal estuary or sheltered inlet, exposure zone D, and E2/AS1 adds a severe marine zone E for surf beachfronts. Close to Tasman Bay, Golden Bay or an estuary, ask the installer which zone you're in and how the outdoor unit will be protected.

Burner rules differ by council

Nelson City Council manages wood smoke by airshed, and its 2015 plan change allowed extra ultra-low emission burners in Stoke and in Airshed C. In Tasman District, ask Tasman District Council. 29.67% of Nelson Region homes still used a wood burner in 2023, and 36.49% electric heaters.

LPG, not mains gas

There's no natural gas reticulation anywhere in the South Island (Te Waihanga), so gas heaters across the region run on LPG.

National rules, applied in Nelson Tasman

The electrical connection is prescribed electrical work for a registered and licensed electrical worker. They must issue a Certificate of Compliance no later than 20 days after the job, and WorkSafe's Electrical Safety Certificate form says to keep your copy for at least 7 years.

We don't hold verified consent positions for Nelson City Council or Tasman District Council. Where a heat pump is exempt from building consent, it must still meet the Building Code, the district plan with its noise limits, and any body corporate rules.

Rentals must meet the healthy homes standards, and open fires and unflued gas heaters never count towards the heating standard. For owner-occupiers, Warmer Kiwi Homes grants are run by EECA, and whether a home qualifies is EECA's call alone.

What we'd do

First steps in Nelson Tasman

We'd replace plug-in heaters in the main living area with a correctly sized heat pump before anything else, choosing it on its 2 degree figure. Near the bay, we'd get corrosion protection written into the quote. And we'd check with your own council, Nelson or Tasman, before planning any burner.

Cities in Nelson Tasman

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Read next

  1. 01Heat pumps in NelsonHeating a Nelson home: frost sizing, damp winter mornings, plug-in heater swaps, Tasman Bay salt and airsheds.
  2. 02Air conditioning in NelsonCooling a Nelson home with a heat pump: how much you need, sunny west rooms, bay salt and summer-night noise.
  3. 03What size heat pump do I need?How to work out the kW for a room, and why the 2 degree figure on the label matters.
  4. 04Do you need a consent for a heat pump?When a heat pump needs a building consent, what applies without one, and the noise limits for outdoor units.
  5. 05The healthy homes heating standardWhat the rental heating standard asks for, which heaters count, and how to check a heat pump against it.
  6. 06All locationsEvery region and city we cover, and why the place changes the heat pump job.

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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