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New Zealand's Specialist Hot Water Heat Pump Installer

Serving Wellington, Hutt Valley, Wairarapa, Kapiti, Horowhenua & Manawatu

0800 770 030
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Hot Water Heat Pumps in Hutt Valley: Mains Pressure & 70% Savings

From the frosty mornings in Upper Hutt to the salt air of Petone, we install systems tailored to the Valley’s unique microclimates.
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Why Hutt Valley Homes Need Climate-Specific Systems

The Hutt Valley is not Wellington City. You get deeper frosts, hotter summer days, sheltered pockets between hills and strong coastal influences. These all affect how a hot water heat pump performs.

A single generic model will not work well across the valley.

A2W specialises exclusively in hot water heat pumps, and we match each home to the right system based on your zone. Whether it is a minus two degree Celsius morning in Trentham or a salty southerly in Eastbourne, we make sure your home has reliable and efficient mains pressure hot water throughout the year.

Handling the Valley Freeze

Upper Hutt, Trentham, Silverstream and Totara Park experience some of the coldest winter lows in the region. Standard hot water heat pumps often struggle below zero and switch to the electric element. This pushes energy costs up.

We install systems  to handle the cold without spiking your bill:

  • Panasonic CO₂ (R744): exceptionally low ambient performance and ideal for sub-zero areas
  • R290 Systems (Rinnai designed HydraHeat and Carrier Blue): fast heat recovery and high efficiency in cold climates, built for NZ outdoor conditions

Both refrigerants perform extremely well in freezing temperatures without relying on backup elements.

Coastal Conditions in Petone, Eastbourne and Seaview

Coastal air carries salty moisture that can accelerate corrosion on outdoor equipment.

Unlike air-to-air heat pumps used for heating and cooling, modern R290 and CO₂ hot water heat pumps have robust components designed for outdoor exposure in New Zealand.

  • Stainless steel restraints and brackets on every installation
  • Placement away from direct sea spray whenever possible
  • Units certified for harsh outdoor environments
  • Fresh water rinsing for homes very close to the coast

Models like the Rinnai HydraHeat undergo salt mist durability testing as part of NZ climate validation. Correct placement is still important for any coastal outdoor appliance.

Ask an Expert About Your Zone

Replace Your Old Low-Pressure Cylinder

Many Hutt Valley homes, especially in Naenae, Taita, Epuni and Stokes Valley, still operate low-pressure copper cylinders with header tanks in the ceiling.

These outdated systems cause several issues:
  • Weak shower pressure
  • Temperature fluctuations when taps run elsewhere
  • Heat loss through bare copper
  • Costly repairs on ageing components

The A2W Upgrade Experience

We do more than replace the cylinder. We modernise the entire hot water system.
  • Remove the low-pressure copper tank
  • Drain the ceiling header tank while leaving it safely in place
  • Install a mains pressure stainless steel cylinder and CO2 heat pump (split system) or an integrated tank and heat pump system
  • Deliver strong and consistent mains pressure showers
The improvement is immediate. You feel it the first time you turn the shower on.
Upgrade My Shower Pressure

Compliant Installations for Tight Boundaries

New subdivisions and infill housing in Lower Hutt mean homes are often close to neighbours. Noise compliance matters.

We handle everything:
  • We check your boundary distances so the unit is placed exactly where it should be
  • We choose quiet systems that usually run between 37 and 45 dB
  • We position the fan so sound is directed away from bedrooms and outdoor living spaces
  • We make sure the entire installation meets Hutt City Council noise rules
This is the difference between a generic install and an A2W installation. You get peace of mind and no unwanted surprises.

Areas We Serve Daily

We work throughout the valley every day.
  • Upper Valley Frost Zone:
    Upper Hutt, Trentham, Silverstream, Totara Park
  • Lower Valley Residential Hub:
    Lower Hutt Central, Waterloo, Woburn, Alicetown
  • 1950s to 1970s Family Belt:
    Naenae, Taita, Epuni, Stokes Valley
  • Coastal and Hillside:
    Petone, Eastbourne, Korokoro, Maungaraki
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Frequently Asked Questions

Yes. CO₂ and R290 systems perform extremely well in freezing temperatures without relying on backup electric elements.

Yes, if you currently have a low-pressure system. Mains pressure provides strong and consistent showers. You may also use more hot water due to the improved flow, which can offset some energy savings.

No. Modern systems are very quiet. We position them to meet Hutt City Council rules and avoid disturbance.

Integrated systems are installed outside, so floor strengthening is not usually required. If a concrete pad is needed, we can provide this as part of the installation.

Hot water heat pumps are typically up to 70% more efficient than standard electric cylinders and gas systems. Actual savings depend on household size and the amount of hot water used.

Ready to Upgrade Your Home?

Avoid weak showers and high bills this winter. Request a site-unseen estimate. We will assess your home, check your zone and recommend the ideal system.
Upgrade My Shower Pressure
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  1. Please note that this is a “site unseen” estimate only.   
  2. If you accept the estimate, we will arrange a site visit and confirm final pricing in a written quote.
  3. The estimate does not constitute an agreement to provide goods or services at the estimated price.

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